:root {
  --color-bg: #08111f;
  --color-bg-secondary: #101c2e;
  --color-panel: rgba(15, 29, 47, .88);
  --color-panel-strong: #12243a;
  --color-border: rgba(148, 163, 184, .18);
  --color-text: #e8f0f8;
  --color-text-muted: #9eafc2;
  --color-text-dim: #6d8096;
  --color-accent: #67e8c2;
  --color-accent-2: #72a8ff;
  --color-hover: #1a3552;
  --color-danger: #ff8d82;
  --shadow-editor: 0 24px 70px rgba(0, 0, 0, .26);
  --radius: 18px;
  --sidebar-width: 248px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-width: 320px;
  margin: 0;
  color: var(--color-text);
  background: var(--color-bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}
a { color: inherit; }
button, input, textarea { font: inherit; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid rgba(103, 232, 194, .45); outline-offset: 3px; }

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  content: "";
  background-image: linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 76%);
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: .85rem clamp(1rem, 4vw, 3.2rem);
  background: rgba(8, 17, 31, .82);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(18px);
}
.site-brand { color: var(--color-text); font-size: 1.1rem; font-weight: 800; letter-spacing: -.03em; text-decoration: none; }
.site-brand::before { display: inline-block; margin-right: .6rem; color: var(--color-accent); content: "< />"; font: 700 .78rem Consolas, monospace; }
.site-nav { display: flex; flex-wrap: wrap; gap: .35rem; align-items: center; justify-content: flex-end; }
.site-nav a, .site-nav-link { padding: .45rem .65rem; color: var(--color-text-muted); border-radius: 8px; font-size: .85rem; text-decoration: none; transition: .2s ease; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--color-text); background: var(--color-hover); }

.sidebar {
  position: fixed;
  z-index: 30;
  top: 72px;
  bottom: 0;
  left: 0;
  width: var(--sidebar-width);
  padding: 2rem 1.2rem;
  background: rgba(8, 17, 31, .92);
  border-right: 1px solid var(--color-border);
}
.sidebar h2 { margin: 0 0 1.7rem; font-size: 1.4rem; letter-spacing: -.04em; }
.sidebar-kicker, .php-kicker { color: var(--color-accent); font: 700 .68rem/1.4 Consolas, monospace; letter-spacing: .14em; text-transform: uppercase; }
.sidebar-kicker { margin: 0 0 .65rem; color: var(--color-text-dim); }
.menu { display: grid; gap: .25rem; }
.menu-item { padding: .7rem .8rem; color: var(--color-text-muted); border: 1px solid transparent; border-radius: 10px; font-size: .9rem; text-decoration: none; transition: .2s ease; }
.menu-item-support { margin-top: .65rem; padding-top: .85rem; color: var(--color-accent) !important; border-top-color: var(--color-border); }
.menu-item:hover, .menu-item:focus-visible { color: var(--color-text); background: var(--color-hover); border-color: var(--color-border); transform: translateX(2px); }
.site-nav-link.is-disabled, .menu-item.is-disabled, .php-button.is-disabled { color: #65758a; border-color: rgba(101, 117, 138, .12); background: rgba(101, 117, 138, .08); opacity: .58; cursor: not-allowed; pointer-events: none; transform: none; }
.overlay, .menu-toggle { display: none; }
.main-content { min-width: 0; min-height: calc(100vh - 72px); margin-left: var(--sidebar-width); overflow-x: hidden; }

.php-page { padding: clamp(1rem, 4vw, 3.8rem); background: radial-gradient(circle at 80% 0, rgba(114, 168, 255, .14), transparent 34rem); }
.php-shell { width: min(1180px, 100%); min-width: 0; margin: 0 auto; }
.php-hero, .php-page-header { position: relative; overflow: hidden; border: 1px solid var(--color-border); border-radius: 24px; background: linear-gradient(135deg, rgba(18, 36, 58, .96), rgba(10, 22, 38, .9)); box-shadow: var(--shadow-editor); }
.php-hero::after, .php-page-header::after { position: absolute; right: -8rem; bottom: -9rem; width: 23rem; height: 23rem; border: 1px solid rgba(103, 232, 194, .15); border-radius: 50%; box-shadow: 0 0 0 2rem rgba(103, 232, 194, .035), 0 0 0 5rem rgba(103, 232, 194, .025); content: ""; pointer-events: none; }
.php-hero { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(240px, .8fr); gap: 2rem; padding: clamp(1.5rem, 5vw, 4.5rem); }
.php-hero h1, .php-page-header h1 { max-width: 780px; margin: .25rem 0 1rem; color: #f5fbff; font-size: clamp(2.2rem, 5.2vw, 4.5rem); line-height: 1.02; letter-spacing: -.06em; }
.php-hero p:not(.php-kicker), .php-page-header p:not(.php-kicker) { max-width: 700px; margin: 0; color: var(--color-text-muted); font-size: clamp(1rem, 1.8vw, 1.15rem); line-height: 1.75; }
.php-hero-side { align-self: end; padding: 1.2rem; border: 1px solid var(--color-border); border-radius: 14px; background: rgba(4, 12, 22, .45); }
.php-status { margin-bottom: 1.4rem; color: var(--color-accent); font: .78rem Consolas, monospace; }
.php-status-dot { display: inline-block; width: .55rem; height: .55rem; margin-right: .45rem; border-radius: 50%; background: var(--color-accent); box-shadow: 0 0 14px var(--color-accent); }
.php-course-meta { display: grid; gap: .25rem; padding: .75rem 0; border-top: 1px solid var(--color-border); }
.php-course-meta strong { color: var(--color-text); font-size: .78rem; }
.php-course-meta span { color: var(--color-text-muted); font-size: .85rem; }
.php-actions, .php-header-actions, .php-code-actions { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1.6rem; }
.php-button { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; gap: .35rem; padding: .7rem 1rem; color: var(--color-text); border: 1px solid var(--color-border); border-radius: 9px; background: rgba(20, 39, 62, .86); cursor: pointer; font: 600 .82rem Consolas, monospace; text-decoration: none; transition: .2s ease; }
.php-button:hover, .php-button:focus-visible { color: #fff; background: var(--color-hover); border-color: var(--color-accent); transform: translateY(-1px); }
.php-button-primary { color: #06151a !important; background: var(--color-accent); border-color: var(--color-accent); }
.php-button-primary:hover, .php-button-primary:focus-visible { color: #06151a !important; background: #9af5d8; border-color: #9af5d8; }
.php-button:disabled { opacity: .55; cursor: not-allowed; transform: none; }

.php-section { padding-top: clamp(2.4rem, 6vw, 5rem); }
.php-section-heading, .php-page-header, .php-footer, .php-userbar { display: flex; gap: 1rem; }
.php-section-heading { align-items: end; justify-content: space-between; margin-bottom: 1.2rem; }
.php-section-heading h2, .php-panel h2 { margin: 0; color: var(--color-text); font-size: clamp(1.45rem, 3vw, 2rem); letter-spacing: -.04em; }
.php-section-heading > p { max-width: 420px; margin: 0 0 .2rem; color: var(--color-text-muted); }
.php-dashboard { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.php-panel { min-width: 0; padding: clamp(1rem, 2.5vw, 1.5rem); border: 1px solid var(--color-border); border-radius: 14px; background: var(--color-panel); box-shadow: 0 12px 35px rgba(0, 0, 0, .12); }
.php-panel h3 { margin: 0 0 .8rem; color: var(--color-text); font-size: 1.05rem; }
.php-panel p { color: var(--color-text-muted); line-height: 1.7; }
.php-panel a, .php-userbar a, .php-footer a, .course-module a { color: var(--color-accent); text-decoration: none; }
.php-panel a:hover, .php-userbar a:hover, .php-footer a:hover, .course-module a:hover { text-decoration: underline; }
.course-modules { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.course-module { position: relative; overflow: hidden; min-height: 210px; }
.course-module::after { position: absolute; right: -1rem; bottom: -2.4rem; color: rgba(103, 232, 194, .08); content: "{}"; font: 800 8rem/1 Consolas, monospace; }
.course-number { display: block; margin-bottom: 1.3rem; color: var(--color-accent-2); font: 700 .8rem Consolas, monospace; }
.course-module p { min-height: 76px; margin-bottom: 1.3rem; font-size: .92rem; }
.course-module-links { display: flex; flex-wrap: wrap; gap: .85rem 1.2rem; position: relative; z-index: 1; }
.course-module-links a:last-child { color: var(--color-text); }
.final-test-intro-grid { align-items: stretch; }
.final-test-header { position: relative; }
.final-exit-button { align-self: flex-start; white-space: nowrap; }
.final-exit-form { position: relative; z-index: 1; margin-left: auto; }
.final-test-disclosure { position: relative; z-index: 1; }
.final-test-disclosure summary { list-style: none; }
.final-test-disclosure summary::-webkit-details-marker { display: none; }
.final-test-disclosure summary::after { margin-left: .35rem; content: '↗'; }
.final-test-disclosure[open] summary { color: #06151a; background: var(--color-accent); border-color: var(--color-accent); }
.final-test-panel { position: relative; z-index: 1; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--color-border); }
.final-test-panel p { margin: 0 0 1rem; font-size: .88rem; }
.final-test-unavailable { color: var(--color-text-dim); font: .78rem Consolas, monospace; }
.final-test-locked, .final-test-result, .final-question-card { border-color: rgba(103, 232, 194, .28); }
.final-test-result.is-passed { border-color: rgba(103, 232, 194, .7); background: linear-gradient(145deg, rgba(14, 63, 59, .72), rgba(15, 29, 47, .9)); }
.final-test-result.is-failed { border-color: rgba(255, 150, 120, .45); }
.final-score, .final-best-score { display: flex; align-items: baseline; gap: 1rem; margin: 1.5rem 0; }
.final-score strong, .final-best-score strong { color: var(--color-accent); font-size: clamp(2.6rem, 8vw, 5rem); line-height: 1; }
.final-score span, .final-best-score span { color: var(--color-muted); }
.final-test-list { display: grid; gap: .7rem; padding-left: 1.2rem; color: var(--color-muted); }
.final-test-progress { height: .45rem; margin: 1rem 0 1.25rem; overflow: hidden; border-radius: 999px; background: rgba(255, 255, 255, .1); }
.final-test-progress span { display: block; height: 100%; border-radius: inherit; background: var(--color-accent); transition: width .2s ease; }
.final-test-exit-warning { margin: 0 0 1rem; color: #ffbf9f; font: .78rem/1.5 Consolas, monospace; }
.final-question-meta { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; color: var(--color-muted); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; }
.final-question-meta strong { color: var(--color-accent); }
.final-exam-body { min-height: 100vh; background: #07111e; }
.final-exam-body .site-header, .final-exam-body .sidebar, .final-exam-body #overlay, .final-exam-body #menuToggle { display: none !important; }
.final-exam-body .main-content { min-height: 100vh; margin-left: 0; }
.final-exam-body .php-page { padding: clamp(1rem, 4vw, 4rem); }
.final-exam-body .final-test-header .php-header-actions, .final-exam-body .php-footer a { display: none; }
.final-exam-body .php-footer { justify-content: center; }
.course-module-project { border-color: rgba(103, 232, 194, .38); background: linear-gradient(145deg, rgba(18, 45, 58, .95), rgba(15, 29, 47, .88)); }
.learning-dashboard { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(260px, .65fr); gap: 1rem; }
.learning-progress-card, .learning-next-card { min-height: 220px; }
.learning-progress-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.learning-progress-heading .course-number { margin-bottom: .45rem; }
.learning-progress-heading h3 { margin: 0; }
.learning-progress-heading > strong { color: var(--color-accent); font: 700 2rem/1 Consolas, monospace; }
.learning-progress-track { height: .7rem; margin: 1.5rem 0 .8rem; overflow: hidden; border-radius: 999px; background: rgba(148, 163, 184, .16); }
.learning-progress-track span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--color-accent-2), var(--color-accent)); transition: width .35s ease; }
.learning-progress-card p, .learning-next-card p { color: var(--color-text-muted); }
.learning-progress-card > p { margin: 0 0 1.1rem; }
.learning-progress-card > p strong, .learning-mini-stats strong { color: var(--color-text); }
.learning-next-card h3 { margin: .35rem 0 .55rem; }
.learning-mini-stats { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1.4rem; color: var(--color-text-muted); font: .82rem Consolas, monospace; }
.learning-preferences-card { display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, .9fr); gap: 1.4rem; align-items: end; margin-top: 1rem; }
.learning-preferences-card h3 { margin: .35rem 0 .45rem; }
.learning-preferences-card p:not(.php-kicker) { margin: 0; color: var(--color-text-muted); }
.learning-preferences-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .7rem; align-items: end; }
.learning-preferences-form label { display: grid; gap: .35rem; color: var(--color-text-muted); font-size: .8rem; }
.learning-preferences-form .php-button { grid-column: 1 / -1; justify-self: start; }
.learning-premium-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) repeat(2, minmax(0, .85fr)); gap: 1rem; margin-top: 1rem; }
.learning-overall-card, .learning-weekly-card, .learning-recommendation-card { min-height: 210px; }
.learning-overall-card { border-color: rgba(103, 232, 194, .38); background: linear-gradient(145deg, rgba(20, 58, 66, .78), rgba(14, 33, 53, .88)); }
.learning-weekly-card { border-color: rgba(247, 215, 116, .3); }
.learning-recommendation-card { border-color: rgba(114, 168, 255, .32); }
.weekly-goal-value { display: flex; align-items: baseline; gap: .45rem; margin-top: 1.1rem; color: var(--color-text-muted); font: .8rem Consolas, monospace; }
.weekly-goal-value strong { color: var(--color-accent); font: 700 2.3rem/1 Consolas, monospace; }
.learning-area-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin-top: 1rem; }
.learning-area-card { min-height: 160px; }
.learning-area-heading, .curriculum-card-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.learning-area-heading .course-number { margin-bottom: .35rem; }
.learning-area-heading h3 { margin: 0; }
.learning-area-heading > strong, .curriculum-progress { color: var(--color-accent); font: 700 1.3rem/1 Consolas, monospace; }
.learning-area-card .learning-progress-track { margin: 1rem 0 .7rem; }
.learning-area-card p { margin: 0 0 .6rem; font: .78rem Consolas, monospace; }
.learning-badges-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .7rem; margin-top: 1rem; }
.learning-badge { display: grid; grid-template-columns: auto 1fr; gap: .7rem; align-items: start; padding: .9rem; }
.learning-badge-icon { display: grid; width: 2rem; height: 2rem; place-items: center; color: var(--color-text-dim); border: 1px solid var(--color-border); border-radius: 50%; font: 1rem Consolas, monospace; }
.learning-badge h3 { margin: 0; font-size: .85rem; }
.learning-badge p { margin: .25rem 0 0; font-size: .72rem; line-height: 1.45; }
.learning-badge > strong { grid-column: 1 / -1; color: var(--color-text-dim); font: 700 .58rem Consolas, monospace; letter-spacing: .08em; }
.learning-badge.is-unlocked { border-color: rgba(103, 232, 194, .38); background: linear-gradient(145deg, rgba(18, 45, 58, .82), rgba(15, 29, 47, .88)); }
.learning-badge.is-unlocked .learning-badge-icon, .learning-badge.is-unlocked > strong { color: var(--color-accent); }
.learning-badge.is-locked { opacity: .7; }
.learning-activity-card { margin-top: 1rem; }
.learning-activity-card .php-section-heading { margin-bottom: .6rem; }
.learning-activity-card .php-section-heading h3 { margin: .35rem 0 0; }
.learning-activity-list { display: grid; gap: .15rem; }
.learning-activity-item { display: grid; grid-template-columns: auto 1fr auto; gap: .7rem; align-items: center; padding: .7rem 0; border-top: 1px solid rgba(125, 155, 185, .16); }
.learning-activity-dot { width: .55rem; height: .55rem; border-radius: 50%; background: var(--color-accent); box-shadow: 0 0 12px rgba(103, 232, 194, .5); }
.learning-activity-item strong { color: var(--color-text); font-size: .82rem; }
.learning-activity-item p { margin: .15rem 0 0; font-size: .76rem; }
.learning-activity-item time { color: var(--color-text-dim); font: .7rem Consolas, monospace; }
.curriculum-list { display: grid; gap: .8rem; }
.curriculum-card { display: grid; grid-template-columns: minmax(180px, .65fr) minmax(0, 1fr) auto; grid-template-rows: auto 1fr auto; column-gap: 1.2rem; align-items: center; }
.curriculum-card-heading { grid-row: 1 / -1; grid-column: 1; align-self: stretch; flex-direction: column; justify-content: space-between; }
.curriculum-card > h3 { grid-column: 2; margin: 0; }
.curriculum-card > p { grid-column: 2; margin: .35rem 0 0; font-size: .85rem; }
.curriculum-card > .learning-progress-track { grid-column: 2; width: 100%; margin: .7rem 0 0; }
.curriculum-links { display: flex; flex-wrap: wrap; grid-column: 3; grid-row: 1 / -1; gap: .45rem; align-items: center; justify-content: flex-end; }
.curriculum-links a:not(.php-button) { padding: .4rem .5rem; color: var(--color-text-muted); border-bottom: 1px solid var(--color-border); font: .7rem Consolas, monospace; text-decoration: none; }
.curriculum-links a:not(.php-button):hover { color: var(--color-accent); border-color: var(--color-accent); }
.project-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.project-card { display: flex; min-height: 360px; flex-direction: column; }
.project-card-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: .75rem; }
.project-card-heading .course-number { margin-bottom: 0; }
.project-status { padding: .3rem .45rem; color: var(--color-accent); border: 1px solid rgba(103, 232, 194, .3); border-radius: 5px; font: 700 .6rem Consolas, monospace; letter-spacing: .08em; }
.project-card h3 { margin: 1.5rem 0 .6rem; }
.project-card > p { min-height: 106px; color: var(--color-text-muted); }
.project-skills { display: flex; flex-wrap: wrap; gap: .4rem; margin: auto 0 1.3rem; }
.project-skills span { padding: .35rem .5rem; color: #b8d1ff; border: 1px solid rgba(114, 168, 255, .25); border-radius: 5px; background: rgba(4, 12, 22, .3); font: .68rem Consolas, monospace; }
.project-card .php-button { align-self: flex-start; }
.project-method { margin-top: .25rem; }
.course-path { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.course-path-step { display: flex; gap: 1rem; padding: 1.2rem; border-left: 2px solid var(--color-accent); background: rgba(15, 29, 47, .5); }
.course-path-step > strong { color: var(--color-accent); font: 1.3rem Consolas, monospace; }
.course-path-step h3 { margin: 0 0 .35rem; font-size: 1rem; }
.course-path-step p { margin: 0; color: var(--color-text-muted); font-size: .9rem; }
.php-metric { margin: .2rem 0 .2rem !important; color: var(--color-accent) !important; font: 700 clamp(1.8rem, 4vw, 2.6rem) Consolas, monospace; }
.php-metric-label { color: var(--color-text-dim); font: .76rem Consolas, monospace; }
.php-form-row { display: flex; flex-wrap: wrap; align-items: stretch; gap: .7rem; }
.php-input { min-width: min(280px, 100%); flex: 1 1 280px; padding: .75rem .85rem; color: var(--color-text); border: 1px solid var(--color-border); border-radius: 9px; background: #07111e; }
.php-input:focus { border-color: var(--color-accent); outline: 3px solid rgba(103, 232, 194, .2); }
.course-login-note { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.course-login-note p { margin: 0; }
.course-clear-name { margin-top: .8rem; }
.php-menu-link { padding: 0; color: var(--color-accent); border: 0; background: none; cursor: pointer; font-size: .82rem; }
.php-menu-link:hover { text-decoration: underline; }
.php-table-wrap { max-width: 100%; overflow-x: auto; }
.php-table { width: 100%; border-collapse: collapse; color: var(--color-text); font-size: .86rem; }
.php-table th, .php-table td { padding: .65rem .55rem; text-align: left; border-bottom: 1px solid var(--color-border); }
.php-table th { color: var(--color-text-muted); font: 700 .7rem Consolas, monospace; letter-spacing: .06em; text-transform: uppercase; }
.php-table td:last-child, .php-table th:last-child { text-align: right; }
.php-table td:last-child { color: var(--color-accent); font-weight: 700; }
.php-message { margin-top: 1rem; padding: .9rem 1rem; border: 1px solid rgba(103, 232, 194, .3); border-radius: 10px; background: rgba(103, 232, 194, .08); color: var(--color-accent); }
.php-message.error { color: var(--color-danger); border-color: rgba(255, 141, 130, .35); background: rgba(255, 141, 130, .08); }
.php-message ul { margin: 0; padding-left: 1.2rem; }
.login-required-message { margin: 1rem 0 0; padding: .85rem 1rem; color: var(--color-accent-2); border: 1px solid rgba(114, 168, 255, .35); border-radius: 10px; background: rgba(114, 168, 255, .08); }
.login-required-message a { color: var(--color-accent); font-weight: 700; }
.landing-login-required { width: min(760px, 100%); margin: 2rem auto 0; text-align: center; }
.php-footer { align-items: center; justify-content: space-between; margin-top: 4rem; padding: 1rem 1.25rem; color: var(--color-text-dim); border: 1px solid var(--color-border); border-radius: 14px; background: rgba(15, 29, 47, .7); font: .75rem Consolas, monospace; }
.php-footer a { padding: .45rem .7rem; border: 1px solid var(--color-border); border-radius: 7px; }
.public-info-page { background: radial-gradient(circle at 82% 0, rgba(103, 232, 194, .09), transparent 32rem); }
.public-info-footer > span:last-child { display: flex; flex-wrap: wrap; gap: .5rem; justify-content: flex-end; }
.updates-list, .legal-document { display: grid; gap: 1rem; }
.update-card { display: grid; grid-template-columns: minmax(180px, .45fr) minmax(0, 1fr); gap: 1.5rem; }
.update-card-meta { display: flex; flex-direction: column; justify-content: space-between; gap: 1rem; min-height: 100%; padding-right: 1.2rem; border-right: 1px solid var(--color-border); }
.update-card-meta time { color: var(--color-text-dim); font: .78rem Consolas, monospace; }
.update-card-content h3 { margin: .55rem 0 .5rem; color: var(--color-text); font-size: 1.35rem; }
.update-card-content p { margin: 0 0 .9rem; color: var(--color-text-muted); line-height: 1.65; }
.update-card-content ul, .legal-section ul { display: grid; gap: .45rem; margin: 0; padding-left: 1.15rem; color: var(--color-text-muted); line-height: 1.6; }
.update-status { display: inline-flex; padding: .28rem .5rem; color: var(--color-accent); border: 1px solid rgba(103, 232, 194, .28); border-radius: 5px; font: 700 .64rem Consolas, monospace; letter-spacing: .08em; text-transform: uppercase; }
.legal-section { padding: clamp(1.25rem, 3vw, 2rem); }
.legal-section h2 { margin: .25rem 0 .85rem; }
.legal-section p { color: var(--color-text-muted); line-height: 1.75; }
.legal-section p:last-child { margin-bottom: 0; }
.legal-section a { color: var(--color-accent); }
.legal-placeholder { padding: .85rem 1rem; border: 1px dashed rgba(247, 215, 116, .55); border-radius: 10px; background: rgba(247, 215, 116, .07); }
.legal-placeholder p { margin: .25rem 0; color: #f7d774; }
.legal-placeholder.is-complete { border-color: rgba(103, 232, 194, .35); background: rgba(103, 232, 194, .06); }
.legal-placeholder.is-complete p { color: var(--color-text-muted); }
.legal-warning { color: #f7d774; border-color: rgba(247, 215, 116, .45); background: rgba(247, 215, 116, .08); line-height: 1.6; }
.legal-table th, .legal-table td { vertical-align: top; }
.legal-table td:nth-child(2) { color: var(--color-accent); }
.landing-footer-links { display: flex; flex-wrap: wrap; gap: .55rem; align-items: center; justify-content: flex-end; }
.admin-settings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.admin-settings-grid label { display: grid; gap: .45rem; color: var(--color-text-muted); font-size: .8rem; }
.admin-danger-panel { border-color: rgba(255, 141, 130, .32); }
.danger-button { color: #fff !important; background: rgba(155, 52, 63, .8); border-color: rgba(255, 141, 130, .55); }
.danger-button:hover, .danger-button:focus-visible { background: #b94755; border-color: #ff8d82; }
.php-page-header { align-items: end; justify-content: space-between; padding: clamp(1.4rem, 4vw, 3rem); }
.php-page-header h1 { font-size: clamp(2rem, 4vw, 3.6rem); }
.php-page-header .php-header-actions { position: relative; z-index: 1; margin-top: 0; }
.php-game-layout { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(230px, .7fr); gap: 1rem; }
.auth-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.auth-card form { display: grid; gap: .8rem; }
.auth-card label { color: var(--color-text-muted); font-size: .85rem; }
.auth-card input { width: 100%; }
.auth-card small { color: var(--color-text-dim); }
.admin-status { display: inline-flex; padding: .25rem .5rem; border-radius: 99px; font: .72rem Consolas, monospace; }
.admin-status.is-active { color: var(--color-accent); background: rgba(103, 232, 194, .1); }
.admin-status.is-inactive { color: var(--color-danger); background: rgba(255, 141, 130, .1); }
.admin-table small { display: block; color: var(--color-text-dim); }
.admin-summary { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.admin-table form { margin-top: .35rem; }
.discount-admin-grid { display: grid; grid-template-columns: minmax(250px, .7fr) minmax(0, 1.3fr); gap: 1rem; }
.discount-admin-form { display: grid; gap: .65rem; }
.discount-admin-form small { color: var(--color-text-dim); }
.discount-admin-form .php-button { margin-top: .35rem; }
.discount-code-list { overflow: hidden; }
.demo-limit-banner { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem .8rem; margin-top: 1rem; padding: .8rem 1rem; color: var(--color-text-muted); border: 1px solid rgba(114, 168, 255, .35); border-radius: 10px; background: rgba(114, 168, 255, .08); font-size: .84rem; }
.demo-limit-banner strong { color: var(--color-accent-2); }
.demo-limit-banner span { color: var(--color-text-dim); }
.demo-limit-banner a { color: var(--color-accent); font-weight: 700; text-decoration: none; }
.demo-limit-banner a:hover { text-decoration: underline; }
.demo-limit-banner.is-locked { border-color: rgba(255, 141, 130, .4); background: rgba(255, 141, 130, .08); }
.demo-limit-banner.is-locked strong { color: var(--color-danger); }
.demo-purchase-modal[hidden] { display: none; }
.demo-purchase-modal { position: fixed; z-index: 1100; inset: 0; display: grid; place-items: center; padding: 1rem; background: rgba(3, 9, 17, .82); backdrop-filter: blur(8px); }
.demo-purchase-dialog { width: min(100%, 560px); padding: clamp(1.5rem, 5vw, 2.8rem); border: 1px solid rgba(247, 215, 116, .55); border-radius: 20px; background: linear-gradient(145deg, #14283f, #091725); box-shadow: 0 28px 90px rgba(0, 0, 0, .5); }
.demo-purchase-dialog h2 { margin: 0; color: #f5fbff; font-size: clamp(1.7rem, 4vw, 2.5rem); line-height: 1.08; letter-spacing: -.05em; }
.demo-purchase-dialog > p:not(.php-kicker) { margin: 1rem 0 0; color: var(--color-text-muted); line-height: 1.7; }
.demo-purchase-actions { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1.5rem; }
.demo-modal-open { overflow: hidden; }
.demo-lock-card { padding: 1.2rem; border: 1px solid rgba(255, 141, 130, .35); border-radius: 10px; background: rgba(255, 141, 130, .07); }
.demo-lock-card strong { color: var(--color-danger); }
.demo-lock-card p { margin: .5rem 0 1rem; }
.course-access-banner { display: flex; align-items: center; justify-content: space-between; gap: 1.2rem; margin-top: 1rem; padding: 1rem 1.2rem; border: 1px solid rgba(247, 215, 116, .35); border-radius: 14px; background: rgba(247, 215, 116, .08); }
.course-access-banner p { margin: .3rem 0 0; color: var(--color-text-muted); }
.course-access-banner strong { color: #f7d774; }
.purchase-layout { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(240px, .65fr); gap: 1rem; }
.purchase-card { padding: clamp(1.4rem, 4vw, 2.5rem); }
.purchase-price { margin: 1rem 0 !important; color: var(--color-accent) !important; font: 800 clamp(2.8rem, 8vw, 5rem)/1 Consolas, monospace; }
.purchase-price small { color: var(--color-text-muted); font-size: 1rem; }
.purchase-list { display: grid; gap: .65rem; margin: 1.5rem 0; padding-left: 1.2rem; color: var(--color-text-muted); }
.purchase-list li::marker { color: var(--color-accent); }
.purchase-note { display: block; margin-top: 1rem; color: var(--color-text-dim); font-size: .75rem; line-height: 1.5; }
.purchase-success { border-color: rgba(103, 232, 194, .4); }
.purchase-demo { border-color: rgba(114, 168, 255, .4); }
.checkout-status { margin: 0; }
.checkout-price { display: inline-flex; align-items: baseline; gap: .55rem; color: var(--color-accent); }
.checkout-price span { white-space: nowrap; }
.checkout-price .is-price-hidden { display: none !important; }
.checkout-price .is-discounted { color: var(--color-text-dim); font-size: .75em; text-decoration: line-through; }
.checkout-modal[hidden] { display: none; }
.checkout-modal { position: fixed; z-index: 1200; inset: 0; display: grid; place-items: center; padding: 1rem; }
.checkout-modal-backdrop { position: absolute; inset: 0; background: rgba(3, 9, 17, .84); backdrop-filter: blur(8px); }
.checkout-modal-dialog { position: relative; width: min(100%, 540px); padding: clamp(1.5rem, 5vw, 2.5rem); border: 1px solid rgba(103, 232, 194, .45); border-radius: 18px; background: linear-gradient(145deg, #14283f, #091725); box-shadow: 0 28px 90px rgba(0, 0, 0, .5); }
.checkout-modal-dialog h2 { margin: 0; color: var(--color-text); font-size: clamp(1.6rem, 4vw, 2.4rem); line-height: 1.08; }
.checkout-modal-dialog > p:not(.php-kicker) { color: var(--color-text-muted); line-height: 1.6; }
.checkout-modal-close { position: absolute; top: .7rem; right: .8rem; width: 2rem; height: 2rem; color: var(--color-text-muted); border: 0; border-radius: 50%; background: transparent; cursor: pointer; font-size: 1.5rem; line-height: 1; }
.checkout-modal-close:hover, .checkout-modal-close:focus-visible { color: var(--color-text); background: rgba(255, 255, 255, .1); }
.checkout-modal-total { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 1.2rem; padding: 1rem; border: 1px solid var(--color-border); border-radius: 10px; color: var(--color-text-muted); }
.checkout-modal-total strong { color: var(--color-accent); font: 800 1.35rem Consolas, monospace; }
.checkout-modal-actions { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1.2rem; }
.checkout-support-info { margin: 1.2rem 0 0; padding-top: .9rem; color: var(--color-text-dim); border-top: 1px solid var(--color-border); font-size: .78rem; line-height: 1.5; }
.checkout-modal-open { overflow: hidden; }
.support-confirm-modal[hidden] { display: none; }
.support-confirm-modal { position: fixed; z-index: 1200; inset: 0; display: grid; place-items: center; padding: 1rem; }
.support-confirm-backdrop { position: absolute; inset: 0; background: rgba(3, 9, 17, .84); backdrop-filter: blur(8px); }
.support-confirm-dialog { position: relative; width: min(100%, 540px); padding: clamp(1.5rem, 5vw, 2.5rem); border: 1px solid rgba(247, 215, 116, .5); border-radius: 18px; background: linear-gradient(145deg, #14283f, #091725); box-shadow: 0 28px 90px rgba(0, 0, 0, .5); }
.support-confirm-dialog h2 { margin: 0; color: var(--color-text); font-size: clamp(1.6rem, 4vw, 2.4rem); line-height: 1.08; }
.support-confirm-dialog > p:not(.php-kicker) { color: var(--color-text-muted); line-height: 1.6; }
.support-confirm-close { position: absolute; top: .7rem; right: .8rem; width: 2rem; height: 2rem; color: var(--color-text-muted); border: 0; border-radius: 50%; background: transparent; cursor: pointer; font-size: 1.5rem; line-height: 1; }
.support-confirm-close:hover, .support-confirm-close:focus-visible { color: var(--color-text); background: rgba(255, 255, 255, .1); }
.support-confirm-actions { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1.2rem; }
.support-confirm-modal-open { overflow: hidden; }
.checkout-discount { display: grid; gap: .55rem; margin: 1rem 0 0; padding: 0; border: 0; }
.checkout-discount-row { display: flex; align-items: center; flex-wrap: wrap; gap: .7rem; }
.checkout-discount-row .php-input { max-width: 320px; }
.checkout-discount-row span, .checkout-discount small { color: var(--color-text-dim); font-size: .75rem; }
.discount-status.is-valid { color: var(--color-accent); }
.message-threads { display: grid; gap: 1.25rem; max-width: 900px; }
.message-compose, .message-thread, .message-card { min-width: 0; overflow: hidden; }
.message-thread { display: grid; gap: 1rem; }
.message-thread-header { display: grid; grid-template-columns: 1fr auto; gap: .35rem .8rem; align-items: end; padding-bottom: .85rem; border-bottom: 1px solid var(--color-border); }
.message-thread-header .php-kicker { margin: 0; }
.message-thread-header h3 { margin: .2rem 0 0; }
.message-thread-meta { display: grid; gap: .2rem; color: var(--color-text-dim); font: .72rem Consolas, monospace; text-align: right; }
.message-thread-meta small { color: var(--color-accent-2); }
.message-thread-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; padding-top: .35rem; }
.message-thread-actions form { margin: 0; }
.thread-action-button { padding: .45rem .7rem; font-size: .72rem; }
.thread-action-danger { color: #ffb0b0; border-color: rgba(255, 122, 122, .35); }
.thread-status { color: var(--color-text-dim); font: .72rem Consolas, monospace; }
.thread-status.is-closed { color: #ffb0b0; }
.messages-list { display: grid; gap: .8rem; }
.message-card { border-left: 3px solid var(--color-accent-2); }
.message-card.message-from-admin { border-left-color: var(--color-accent); }
.message-card p { margin: 1rem 0 0; color: var(--color-text-muted); line-height: 1.7; white-space: normal; overflow-wrap: anywhere; }
.message-reply-box { max-width: 850px; margin-left: 1.25rem; border-left: 3px solid var(--color-accent); background: rgba(10, 25, 42, .78); }
.message-reply-box .php-kicker { margin: 0 0 .5rem; }
.message-reply-box .message-reply { margin-top: 0; padding-top: 0; border-top: 0; }
.message-meta { display: flex; align-items: center; flex-wrap: wrap; gap: .65rem; color: var(--color-text-dim); font: .72rem Consolas, monospace; }
.message-meta strong { color: var(--color-text); font-size: .82rem; }
.message-meta small { color: var(--color-accent-2); }
.message-badge { display: inline-flex; min-width: 1.1rem; height: 1.1rem; align-items: center; justify-content: center; margin-left: .3rem; padding: 0 .25rem; color: #06201d; border-radius: 99px; background: var(--color-accent); font: 700 .62rem/1 Consolas, monospace; vertical-align: middle; }
.message-reply { display: grid; min-width: 0; gap: .6rem; margin-top: 1.2rem; padding-top: 1rem; border-top: 1px solid var(--color-border); }
.message-compose { max-width: 900px; }
.message-compose .php-textarea, .message-reply .php-textarea { display: block; min-width: 0; min-height: 120px; width: 100%; max-width: 100%; }
.messages-empty { max-width: 900px; }
.checkout-page { min-height: 100vh; background: var(--color-bg); }
.checkout-main { display: grid; place-items: start center; min-height: calc(100vh - 72px); padding: 5rem 1.2rem; }
.checkout-card { width: min(100%, 560px); padding: clamp(1.5rem, 4vw, 3rem); border: 1px solid var(--color-border); border-radius: 18px; background: var(--color-surface); box-shadow: 0 24px 70px rgba(0, 0, 0, .22); }
.checkout-card h1 { margin: .35rem 0 .8rem; }
.checkout-intro { color: var(--color-text-muted); }
.checkout-order { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin: 1.6rem 0; padding: 1rem; border: 1px solid var(--color-border); border-radius: 12px; background: rgba(114, 168, 255, .07); }
.checkout-order span, .checkout-order small { display: block; }
.checkout-order small { margin-top: .3rem; color: var(--color-text-dim); }
.checkout-order strong { color: var(--color-accent-2); font-size: 1.35rem; white-space: nowrap; }
.checkout-form { display: grid; gap: 1rem; }
.checkout-methods { display: grid; gap: .45rem; margin: 0; padding: 1rem; border: 1px solid var(--color-border); border-radius: 12px; }
.checkout-methods legend { padding: 0 .35rem; color: var(--color-text-muted); font-weight: 700; }
.checkout-methods label { color: var(--color-text); }
.checkout-methods input { accent-color: var(--color-accent); margin-right: .45rem; }
.checkout-methods small, .checkout-note { color: var(--color-text-dim); line-height: 1.5; }
.checkout-submit { width: 100%; justify-content: center; }
.checkout-note { margin: 1.2rem 0 0; font-size: .82rem; }

.landing-body { background: #07111f; }
.landing-header { position: relative; }
.landing-main { width: min(1240px, 100%); margin: 0 auto; padding: clamp(1rem, 4vw, 3rem); }
.landing-hero { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr); align-items: center; gap: clamp(2rem, 7vw, 7rem); min-height: 650px; padding: clamp(2rem, 6vw, 5rem) 0; }
.landing-hero h1 { max-width: 800px; margin: .5rem 0 1.3rem; color: #f5fbff; font-size: clamp(2.6rem, 6vw, 5.7rem); line-height: .98; letter-spacing: -.07em; }
.landing-lead { max-width: 680px; color: var(--color-text-muted); font-size: clamp(1rem, 1.7vw, 1.2rem); line-height: 1.8; }
.landing-proof { display: flex; flex-wrap: wrap; gap: 1rem 1.6rem; margin-top: 2.2rem; color: var(--color-text-dim); font: .75rem Consolas, monospace; }
.landing-proof strong { margin-right: .25rem; color: var(--color-accent); font-size: 1rem; }
.landing-code-card { overflow: hidden; border: 1px solid var(--color-border); border-radius: 18px; background: #0c1a2b; box-shadow: 0 28px 80px rgba(0, 0, 0, .35); transform: rotate(2deg); }
.landing-window-bar { display: flex; align-items: center; gap: .4rem; padding: .8rem 1rem; border-bottom: 1px solid var(--color-border); color: var(--color-text-dim); font-size: .75rem; }
.landing-window-bar > span { width: .55rem; height: .55rem; border-radius: 50%; background: #ff8d82; }
.landing-window-bar > span:nth-child(2) { background: #f7d774; }
.landing-window-bar > span:nth-child(3) { background: var(--color-accent); }
.landing-window-bar code { margin-left: auto; font: .7rem Consolas, monospace; }
.landing-code-card pre { min-height: 285px; margin: 0; padding: 1.4rem; color: #d4e4f2; font: .88rem/2 Consolas, monospace; white-space: pre-wrap; }
.landing-code-card pre code { color: inherit; font: inherit; }
.landing-terminal { padding: .85rem 1.2rem; color: var(--color-text-muted); border-top: 1px solid var(--color-border); font: .72rem Consolas, monospace; }
.landing-terminal span { margin: 0 .4rem; color: var(--color-text-dim); }.terminal-dot { display: inline-block; width: .5rem; height: .5rem; margin-right: .45rem; border-radius: 50%; background: var(--color-accent); box-shadow: 0 0 12px var(--color-accent); }
.landing-section { padding: clamp(3rem, 8vw, 7rem) 0 0; }
.landing-section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, .8fr); align-items: end; gap: 1rem; margin-bottom: 1.5rem; }
.landing-section-heading .php-kicker { grid-column: 1 / -1; margin-bottom: -.75rem; }
.landing-section-heading h2, .landing-demo h2, .landing-cta h2 { margin: 0; color: var(--color-text); font-size: clamp(1.8rem, 4vw, 3.2rem); line-height: 1.05; letter-spacing: -.06em; }
.landing-section-heading > p:last-child { margin: 0; color: var(--color-text-muted); }
.landing-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.landing-feature { padding: 1.5rem; border-top: 1px solid var(--color-accent); background: rgba(15, 29, 47, .65); }
.landing-feature-number { color: var(--color-accent-2); font: .75rem Consolas, monospace; }.landing-feature h3 { margin: 2.3rem 0 .5rem; font-size: 1.25rem; }.landing-feature p { margin: 0; color: var(--color-text-muted); line-height: 1.7; }
.landing-levels-section { margin-top: clamp(2rem, 5vw, 4rem); padding: clamp(2rem, 5vw, 4rem); border: 1px solid rgba(103, 232, 194, .2); border-radius: 24px; background: linear-gradient(145deg, rgba(10, 29, 48, .96), rgba(5, 16, 29, .92)); box-shadow: 0 26px 70px rgba(0, 0, 0, .25); }
.landing-levels-section .landing-section-heading { margin-bottom: 2rem; }
.landing-levels { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.landing-level { position: relative; display: grid; grid-template-rows: auto 1fr auto; min-height: 250px; gap: 1rem; overflow: hidden; padding: 1.5rem; color: var(--color-text); border: 1px solid rgba(125, 155, 185, .35); border-top: 4px solid var(--level-color, var(--color-accent)); border-radius: 16px; background: linear-gradient(145deg, rgba(24, 48, 76, .98), rgba(8, 20, 35, .96)); text-decoration: none; isolation: isolate; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.landing-level::before { position: absolute; z-index: -1; top: 0; right: 0; left: 0; height: 3px; background: var(--level-color, var(--color-accent)); box-shadow: 0 0 24px var(--level-color, var(--color-accent)); content: ""; }
.landing-level::after { position: absolute; z-index: -1; right: -5rem; bottom: -6rem; width: 13rem; height: 13rem; border: 1px solid color-mix(in srgb, var(--level-color, var(--color-accent)) 30%, transparent); border-radius: 50%; box-shadow: 0 0 0 1.5rem color-mix(in srgb, var(--level-color, var(--color-accent)) 6%, transparent); content: ""; }
.landing-level:hover, .landing-level:focus-visible { border-color: var(--level-color, var(--color-accent)); transform: translateY(-6px); box-shadow: 0 22px 46px rgba(0, 0, 0, .3), 0 0 0 1px color-mix(in srgb, var(--level-color, var(--color-accent)) 18%, transparent); }
.landing-level:focus-visible { outline: 2px solid var(--level-color, var(--color-accent)); outline-offset: 4px; }
.landing-level-eyebrow { width: fit-content; padding: .4rem .55rem; color: var(--level-color, var(--color-accent)); border: 1px solid color-mix(in srgb, var(--level-color, var(--color-accent)) 32%, transparent); border-radius: 6px; background: color-mix(in srgb, var(--level-color, var(--color-accent)) 8%, transparent); font: 700 .68rem Consolas, monospace; letter-spacing: .1em; }
.landing-level-main { display: grid; align-content: end; gap: .65rem; }
.landing-level strong { display: block; color: #f5fbff; font-size: clamp(1.45rem, 2vw, 1.8rem); line-height: 1.05; letter-spacing: -.04em; }
.landing-level-description { display: block; max-width: 25ch; color: var(--color-text-muted); font-size: .9rem; line-height: 1.6; }
.landing-level-arrow { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding-top: .85rem; color: var(--level-color, var(--color-accent)); border-top: 1px solid rgba(125, 155, 185, .2); font: 700 .68rem Consolas, monospace; letter-spacing: .05em; text-transform: uppercase; }
.landing-level-arrow b { color: inherit; font: 1.15rem Consolas, monospace; }
.landing-level-latwy { --level-color: #67e8c2; }.landing-level-sredni { --level-color: #72a8ff; }.landing-level-trudny { --level-color: #f7d774; }.landing-level-superpro { --level-color: #ff9b8f; }
.landing-curriculum { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .7rem; }
.landing-language { position: relative; display: grid; min-height: 150px; gap: .35rem; padding: 1rem; color: var(--color-text); border: 1px solid var(--color-border); border-radius: 12px; background: rgba(15, 29, 47, .65); text-decoration: none; transition: .2s ease; }
.landing-language:hover, .landing-language:focus-visible, .landing-language:active { border-color: var(--color-accent); background: var(--color-hover); transform: translateY(-3px); }.landing-language span { color: var(--color-accent); font: .7rem Consolas, monospace; }.landing-language strong { align-self: end; font-size: 1.05rem; }.landing-language small { color: var(--color-text-muted); line-height: 1.35; }.landing-language b { position: absolute; right: 1rem; top: 1rem; color: var(--color-accent-2); }
.landing-coming-soon { display: grid; grid-template-columns: minmax(0, 1fr) minmax(250px, .55fr); gap: 2rem; align-items: center; padding: clamp(1.5rem, 4vw, 2.8rem); border: 1px solid rgba(247, 215, 116, .45); border-radius: 20px; background: linear-gradient(135deg, rgba(67, 57, 27, .72), rgba(20, 35, 52, .88)); box-shadow: var(--shadow-editor); }
.landing-coming-soon h2 { margin: 0; color: var(--color-text); font-size: clamp(1.8rem, 4vw, 3rem); line-height: 1.05; letter-spacing: -.06em; }
.landing-coming-soon p:not(.php-kicker) { max-width: 720px; margin: 1rem 0 0; color: var(--color-text-muted); line-height: 1.75; }
.landing-coming-soon-topics { display: grid; gap: .65rem; }
.landing-coming-soon-topics span { padding: .85rem 1rem; color: #f7d774; border: 1px solid rgba(247, 215, 116, .3); border-radius: 9px; background: rgba(4, 12, 22, .3); font: 700 .78rem Consolas, monospace; }
.landing-demo { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .7fr); gap: 2rem; align-items: center; margin-top: clamp(4rem, 10vw, 9rem); padding: clamp(1.5rem, 5vw, 3.2rem); border: 1px solid rgba(103, 232, 194, .3); border-radius: 20px; background: linear-gradient(135deg, rgba(20, 58, 66, .8), rgba(14, 33, 53, .86)); box-shadow: var(--shadow-editor); }
.landing-demo p:not(.php-kicker), .landing-cta p { max-width: 680px; color: var(--color-text-muted); line-height: 1.75; }.demo-credentials { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.4rem; }.demo-credentials span { display: grid; gap: .3rem; padding: .7rem .8rem; border: 1px solid var(--color-border); border-radius: 9px; background: rgba(4, 12, 22, .35); }.demo-credentials small, .demo-form small { color: var(--color-text-dim); font-size: .75rem; }.demo-credentials code { color: var(--color-accent); font: .8rem Consolas, monospace; }.demo-form { display: grid; gap: .8rem; align-content: center; }.demo-form .php-button { width: 100%; }
.landing-pricing-section { margin-top: clamp(3rem, 8vw, 7rem); }
.landing-pricing { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.landing-price-card { position: relative; display: flex; flex-direction: column; padding: clamp(1.4rem, 4vw, 2.4rem); border: 1px solid var(--color-border); border-radius: 18px; background: rgba(15, 29, 47, .72); }
.landing-price-card h3 { margin: .3rem 0 0; color: var(--color-text); font-size: 1.5rem; }
.landing-price-card > p:not(.php-kicker):not(.landing-price) { color: var(--color-text-muted); line-height: 1.65; }
.landing-price { margin: 1.1rem 0 .5rem; color: var(--color-accent); font: 800 2.8rem/1 Consolas, monospace; }
.landing-price small { color: var(--color-text-dim); font-size: .75rem; font-weight: 400; }
.landing-price-card ul { display: grid; gap: .7rem; min-height: 12rem; margin: 1rem 0 1.4rem; padding-left: 1.2rem; color: var(--color-text-muted); line-height: 1.5; }
.landing-price-card li::marker { color: var(--color-accent); }
.landing-price-card .php-button { margin-top: auto; }
.landing-price-full { border-color: rgba(103, 232, 194, .5); background: linear-gradient(145deg, rgba(20, 58, 66, .82), rgba(14, 33, 53, .9)); box-shadow: 0 22px 60px rgba(0, 0, 0, .2); }
.landing-price-badge { position: absolute; top: 1rem; right: 1rem; padding: .35rem .5rem; color: #08201d; border-radius: 5px; background: var(--color-accent); font: 700 .65rem Consolas, monospace; }
.landing-cta { margin: clamp(4rem, 10vw, 9rem) 0 0; padding: clamp(2rem, 5vw, 4rem) 0; text-align: center; border-top: 1px solid var(--color-border); }.landing-cta p:not(.php-kicker) { margin: 1rem auto 0; }.landing-cta .php-actions { justify-content: center; }.landing-footer { display: flex; justify-content: space-between; gap: 1rem; width: min(1240px, calc(100% - 2rem)); margin: 0 auto; padding: 1.4rem 0 2rem; color: var(--color-text-dim); border-top: 1px solid var(--color-border); font: .75rem Consolas, monospace; }.landing-footer a { color: var(--color-accent); text-decoration: none; }
@media (max-width: 980px) { .landing-curriculum { grid-template-columns: repeat(3, 1fr); }.landing-levels { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 720px) { .landing-main { padding: .75rem; }.landing-hero { grid-template-columns: 1fr; min-height: 0; padding: 4rem 0 2rem; }.landing-code-card { transform: none; }.landing-features, .landing-demo, .landing-coming-soon, .landing-pricing { grid-template-columns: 1fr; }.landing-section-heading { grid-template-columns: 1fr; }.landing-levels-section { padding: 1.25rem; border-radius: 18px; }.landing-levels, .landing-curriculum { grid-template-columns: repeat(2, 1fr); }.landing-footer { align-items: flex-start; flex-direction: column; }.landing-footer-links, .public-info-footer > span:last-child { justify-content: flex-start; }.update-card { grid-template-columns: 1fr; }.update-card-meta { min-height: 0; padding: 0 0 1rem; border-right: 0; border-bottom: 1px solid var(--color-border); }.legal-table { min-width: 720px; }.admin-settings-grid { grid-template-columns: 1fr; } }
@media (max-width: 450px) { .landing-levels, .landing-curriculum { grid-template-columns: 1fr; }.demo-credentials span { width: 100%; } }

@media (max-width: 980px) {
  .sidebar { width: 220px; }
  .main-content { margin-left: 220px; }
  .php-dashboard, .course-modules { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .learning-dashboard { grid-template-columns: 1fr; }
  .learning-premium-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .learning-overall-card { grid-column: 1 / -1; }
  .learning-area-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .learning-badges-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .curriculum-card { grid-template-columns: minmax(150px, .55fr) minmax(0, 1fr); }
  .curriculum-links { grid-column: 2; grid-row: auto; justify-content: flex-start; margin-top: .7rem; }
  .learning-preferences-card { grid-template-columns: 1fr; }
  .project-grid { grid-template-columns: 1fr; }
  .course-path { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .site-header { align-items: flex-start; flex-direction: column; gap: .55rem; }
  .site-nav { width: 100%; justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; }
  .sidebar { top: 112px; width: min(290px, 84vw); transform: translateX(-105%); transition: transform .25s ease; }
  body.menu-open .sidebar { transform: translateX(0); }
  .overlay { position: fixed; z-index: 25; inset: 112px 0 0; display: block; visibility: hidden; background: rgba(0, 0, 0, .5); opacity: 0; transition: .25s ease; }
  body.menu-open .overlay { visibility: visible; opacity: 1; }
  .main-content { margin-left: 0; }
  .menu-toggle { position: fixed; z-index: 40; right: 1rem; bottom: 1rem; display: grid; width: 48px; height: 48px; place-items: center; color: #06151a; border: 0; border-radius: 50%; background: var(--color-accent); box-shadow: 0 8px 24px rgba(0,0,0,.35); cursor: pointer; }
  .menu-toggle .icon { width: 22px; height: 22px; }
  .php-hero, .php-page-header { grid-template-columns: 1fr; align-items: start; }
  .php-page-header, .php-section-heading, .php-footer { align-items: flex-start; flex-direction: column; }
  .php-page-header .php-header-actions { margin-top: 0; }
  .php-dashboard, .course-modules, .auth-grid, .php-game-layout, .discount-admin-grid { grid-template-columns: 1fr; }
  .learning-premium-grid, .learning-area-grid { grid-template-columns: 1fr; }
  .learning-overall-card { grid-column: auto; }
  .learning-badges-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .curriculum-card { display: block; }
  .curriculum-card-heading { flex-direction: row; }
  .curriculum-card > h3 { margin-top: 1rem; }
  .curriculum-links { margin-top: 1rem; }
  .php-editor-toolbar { align-items: flex-start; flex-direction: column; }
  .php-editor-controls { justify-content: flex-start; }
  .course-access-banner, .purchase-layout { align-items: stretch; grid-template-columns: 1fr; flex-direction: column; }
  .message-reply-box { margin-left: 0; }
  .course-login-note { align-items: flex-start; flex-direction: column; }
  .php-footer a, .php-header-actions .php-button, .php-actions .php-button, .php-form-row .php-button { width: 100%; }
  .php-input { width: 100%; min-width: 0; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; } }

/* Construction Notice Banner */
.landing-construction-notice {
  width: min(1240px, calc(100% - 2rem));
  margin: 3rem auto 1.5rem;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(135deg, rgba(247, 215, 116, 0.08), rgba(15, 29, 47, 0.7));
  border: 1px solid rgba(247, 215, 116, 0.3);
  border-radius: 12px;
  color: var(--color-text-muted, #8a99ad);
}
.landing-construction-content {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.landing-construction-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}
.landing-construction-notice p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--color-text-muted, #a0aec0);
}
.landing-construction-notice strong {
  color: var(--color-text, #f5fbff);
}
.landing-construction-notice a {
  color: var(--color-accent, #f7d774);
  text-decoration: underline;
  font-weight: 600;
}
.landing-construction-notice a:hover {
  color: #ffffff;
}
@media (max-width: 600px) {
  .landing-construction-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

.checkout-withdrawal-note {
  margin: 0.85rem 0 0;
  padding: 0.75rem 0.9rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: var(--color-text-dim, #8a99ad);
  font-size: 0.78rem;
  line-height: 1.5;
}
.checkout-withdrawal-note strong {
  color: var(--color-text-muted, #a0aec0);
}