/*
 * Landing page styles.
 *
 * Rules this file follows (015 FR-008 to FR-012):
 *  - Colors come only from landing/brand-tokens.css (generated from AppColors),
 *    or are tints of those made with color-mix(). No literal hex colors here.
 *  - Spacing, radii and type sizes come from landing/design-tokens.css.
 *  - Direction-sensitive rules use logical properties (inline-start/-end,
 *    margin-inline, …), so one stylesheet serves both English (ltr) and
 *    Arabic (rtl).
 *  - Repeated patterns (.button, .pill, .eyebrow, .icon, .card) are defined once.
 */

:root {
  --ink: var(--brand-loader-navy);
  --muted: var(--brand-body-grey);
  --paper: var(--brand-surface);
  --paper-alt: var(--brand-page-background);
  --line: var(--brand-border-grey);
  --line-soft: var(--brand-divider-grey);
  --accent: var(--brand-accent-blue);
  --tint-blue: var(--brand-nav-selected);
  --tint-green: color-mix(in srgb, var(--brand-success-green) 12%, var(--brand-surface));
  --tint-amber: color-mix(in srgb, var(--brand-warning-amber) 12%, var(--brand-surface));
  --highlight: color-mix(in srgb, var(--brand-red) 26%, transparent);
  --shadow-soft: 0 12px 28px color-mix(in srgb, var(--brand-navy) 10%, transparent);
  --shadow-strong: 0 25px 55px color-mix(in srgb, var(--brand-navy) 16%, transparent);

  /* Tilts flip with reading direction so the illustration leans the same way
     relative to the text in both languages. */
  --tilt-dashboard: -2deg;
  --tilt-card: 3deg;
  --tilt-orbit: -8deg;
  --tilt-label: 4deg;
  --tilt-letter: -12deg;
}

[dir="ltr"] {
  --tilt-dashboard: 2deg;
  --tilt-card: -3deg;
  --tilt-orbit: 8deg;
  --tilt-label: -4deg;
  --tilt-letter: 12deg;
}

/* ---- Base ---------------------------------------------------------------- */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--space-32); }
body { margin: 0; background: var(--paper); }
[hidden] { display: none !important; }

/* Hidden until i18n.js has filled in the right language (lifted by a failsafe). */
.i18n-pending #landing,
.i18n-pending #app-loading { visibility: hidden; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

#landing {
  font-family: system-ui, "Segoe UI", Tahoma, Arial, sans-serif;
  color: var(--ink);
  font-size: var(--font-size-lg);
  line-height: 1.8;
  overflow-x: clip; /* decorative orbits and tilted cards must not widen a phone viewport */
}
#landing a { color: inherit; text-decoration: none; }
#landing a,
#landing button,
#landing summary { -webkit-tap-highlight-color: transparent; }
#landing a:focus-visible,
#landing button:focus-visible,
#landing summary:focus-visible { outline: 3px solid var(--accent); outline-offset: var(--space-6); }
#landing h1, #landing h2, #landing h3, #landing p { margin: 0; }
#landing section[id] { scroll-margin-top: var(--space-32); }
#landing .container { max-width: var(--content-max-width); width: calc(100% - 96px); margin-inline: auto; }
.app-mode { background: var(--paper); }

.skip-link {
  position: absolute;
  inset-block-start: -100px;
  inset-inline-start: 0;
  background: var(--brand-navy);
  color: var(--brand-surface) !important;
  padding: var(--space-12) var(--space-24);
  z-index: 10;
}
.skip-link:focus { inset-block-start: var(--space-8); }

/* ---- Shared building blocks ---------------------------------------------- */

.icon {
  width: var(--icon-md);
  height: var(--icon-md);
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
/* Arrows and "enter" point the way reading proceeds. */
[dir="rtl"] .icon-directional { transform: scaleX(-1); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-10);
  color: var(--accent);
  font-size: var(--font-size-md);
  font-weight: 600;
}
.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  background: var(--brand-success-green);
  border-radius: 50%;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand-success-green) 14%, transparent);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-16);
  min-height: 48px;
  padding: var(--space-14) var(--space-24);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  line-height: 1.7;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--brand-navy); color: var(--brand-surface) !important; box-shadow: 0 5px 12px color-mix(in srgb, var(--brand-navy) 18%, transparent); }
.button-primary:hover { background: var(--brand-accent-blue); }
.button-outline { border-color: var(--line); background: var(--paper); }
.button-outline:hover { background: var(--tint-blue); }
.button-light { background: var(--brand-surface); color: var(--brand-navy) !important; }
.button-small { min-height: 44px; padding: var(--space-8) var(--space-16); font-size: var(--font-size-md); gap: var(--space-12); }

.text-link { display: inline-flex; align-items: center; gap: var(--space-10); font-weight: 600; font-size: var(--font-size-md); }
.text-link:hover { color: var(--accent) !important; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  border-radius: var(--radius-pill);
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-mock-xs);
  white-space: nowrap;
}
.pill .icon { width: var(--font-size-mock-sm); height: var(--font-size-mock-sm); }
.pill-green { background: var(--tint-green); color: color-mix(in srgb, var(--brand-success-green) 70%, black); } /* darkened to clear 4.5:1 on its tint */
.pill-blue { background: var(--tint-blue); color: var(--brand-navy); }

/* ---- Header -------------------------------------------------------------- */

.site-header {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-24);
  border-block-end: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: var(--space-10); }
.brand img { border-radius: var(--radius-sm); }
.brand-text { font-size: 21px; font-weight: 800; letter-spacing: 1px; line-height: 1.25; white-space: nowrap; }
.brand small { display: block; font-size: var(--font-size-mock-sm); font-weight: 400; letter-spacing: 0; margin-block-start: var(--space-6); color: var(--muted); }
.brand-dash { color: var(--brand-red); }
.site-header nav { display: flex; gap: var(--space-32); font-size: var(--font-size-base); color: var(--muted); }
.site-header nav a:hover { color: var(--accent); }
.header-actions { display: flex; align-items: center; gap: var(--space-12); }

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  min-height: 44px;
  padding: var(--space-8) var(--space-14);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: var(--font-size-md);
  font-weight: 600;
  cursor: pointer;
}
.lang-toggle:hover { background: var(--tint-blue); }
.lang-toggle .icon { width: var(--icon-sm); height: var(--icon-sm); color: var(--accent); }

/* ---- Hero ---------------------------------------------------------------- */

.hero {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 52px;
  align-items: center;
  min-height: 650px;
  padding-block: 74px var(--space-90);
}
.hero h1 { font-size: var(--font-size-hero); font-weight: 750; line-height: 1.4; letter-spacing: -1.5px; margin: var(--space-20) 0 var(--space-24) !important; }
/* Arabic is a joined script: any letter-spacing breaks its ligatures. */
[dir="rtl"] .hero h1,
[dir="rtl"] .section-heading h2,
[dir="rtl"] .workflow-section h2,
[dir="rtl"] .faq-section h2,
[dir="rtl"] .closing-section h2 { letter-spacing: 0; }
/* A background (not a pseudo-element) so the highlight follows the text when
   the phrase wraps onto two lines on a narrow screen. */
.underlined {
  background: linear-gradient(var(--highlight), var(--highlight)) no-repeat 0 90% / 100% 0.28em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}
.hero-description { font-size: 17px; max-width: 450px; line-height: 2; color: var(--muted); }
.hero-actions { display: flex; align-items: center; gap: var(--space-24); margin-block-start: var(--space-32); flex-wrap: wrap; font-size: var(--font-size-base); }
.play-icon { display: inline-grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; height: 34px; width: 34px; color: var(--accent); }
.play-icon .icon { width: var(--icon-sm); height: var(--icon-sm); }
[dir="rtl"] .play-icon .icon { transform: scaleX(-1); }
.hero-note { display: flex; align-items: center; gap: var(--space-10); font-size: var(--font-size-sm); color: var(--muted); margin-block-start: var(--space-24); }
.note-line { height: 1px; width: 22px; background: var(--brand-red); }
.hero-platforms { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-14); font-size: var(--font-size-xs); margin-block-start: var(--space-32); color: var(--muted); }
.hero-platforms > span:first-child { border-inline-end: 1px solid var(--line); padding-inline-end: var(--space-16); }

/* ---- Product illustration ------------------------------------------------ */

.product-stage { position: relative; padding: 42px 0 var(--space-32); isolation: isolate; min-width: 0; }
.stage-orbit { position: absolute; inset: -15px -25px; background: var(--tint-blue); border-radius: 50% 44% 43% 46%; z-index: -1; transform: rotate(var(--tilt-orbit)); }
.stage-orbit::after { content: ""; position: absolute; inset: 18px; border: 1px dashed var(--line); border-radius: 50%; }
.stage-label { position: absolute; inset-block-start: -13px; inset-inline-start: var(--space-32); font-size: var(--font-size-md); color: var(--accent); font-weight: 600; transform: rotate(var(--tilt-label)); }

.dashboard { background: var(--paper); border: 1px solid var(--line); border-radius: 15px; box-shadow: var(--shadow-strong); overflow: hidden; transform: rotate(var(--tilt-dashboard)); font-size: var(--font-size-mock-sm); position: relative; }
.dashboard-top { display: flex; justify-content: space-between; align-items: center; padding: var(--space-12) var(--space-16); border-block-end: 1px solid var(--line-soft); }
.mini-brand, .dashboard-profile { display: flex; align-items: center; gap: var(--space-8); }
.mini-brand strong { font-size: var(--font-size-mock-sm); letter-spacing: 0.8px; }
.avatar { display: grid; place-items: center; background: var(--tint-blue); color: var(--brand-navy); width: 26px; height: 26px; border-radius: 50%; font-size: var(--font-size-mock-md); }
.notification { width: var(--icon-sm); height: var(--icon-sm); color: var(--muted); margin-inline-end: var(--space-8); }
.dashboard-body { display: flex; min-height: 330px; }
.mock-sidebar { width: 100px; flex-shrink: 0; padding: var(--space-16) var(--space-8); display: flex; flex-direction: column; gap: var(--space-10); border-inline-end: 1px solid var(--line-soft); color: var(--muted); font-size: var(--font-size-xs); }
.mock-sidebar > div { padding: var(--space-6) var(--space-8); display: flex; gap: var(--space-8); align-items: center; }
.mock-sidebar .icon { width: var(--font-size-mock-md); height: var(--font-size-mock-md); }
.side-active { background: var(--tint-blue); border-radius: var(--radius-xs); color: var(--brand-navy); font-weight: 600; }
.sidebar-bottom { margin-block-start: auto; }
.mock-content { flex: 1; background: var(--paper-alt); padding: var(--space-20) var(--space-16); min-width: 0; }
.welcome { display: flex; justify-content: space-between; align-items: center; gap: var(--space-6); }
.welcome h2 { font-size: var(--font-size-base); line-height: 1.8; margin: var(--space-4) 0 !important; }
.welcome h2 .icon { width: var(--font-size-base); height: var(--font-size-base); color: var(--brand-warning-amber); vertical-align: -2px; }
.welcome p, .micro { font-size: var(--font-size-mock-xs); color: var(--muted); }
.date-chip { font-size: var(--font-size-mock-2xs); border: 1px solid var(--line); background: var(--paper); border-radius: var(--radius-xs); padding: var(--space-6); white-space: nowrap; }
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-8); margin-block-start: 18px; }
.stat { background: var(--paper); border: 1px solid var(--line-soft); border-radius: 7px; padding: var(--space-10); display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-6); font-size: var(--font-size-mock-xs); color: var(--muted); }
.stat strong { font-size: var(--font-size-2xl); color: var(--ink); font-weight: 600; line-height: 1.3; }
.stat small { font-size: var(--font-size-mock-2xs); color: var(--muted); font-weight: 400; }
.stat-symbol { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 5px; }
.stat-symbol .icon { width: var(--font-size-mock-md); height: var(--font-size-mock-md); }
.blue { color: var(--brand-navy); background: var(--tint-blue); }
.green { color: var(--brand-success-green); background: var(--tint-green); }
.amber { color: var(--brand-warning-amber); background: var(--tint-amber); }
.mock-section-title { display: flex; justify-content: space-between; align-items: center; margin-block: var(--space-20) var(--space-8); }
.mock-section-title h3 { font-size: var(--font-size-xs); }
.mock-section-title > span { font-size: var(--font-size-mock-2xs); color: var(--accent); }
.lesson { display: flex; align-items: center; gap: var(--space-10); background: var(--paper); border: 1px solid var(--line-soft); border-radius: 6px; padding: var(--space-10) var(--space-8); margin-block-start: var(--space-6); }
.lesson-time { font-size: var(--font-size-mock-md); color: var(--brand-navy); border-inline-end: 1px solid var(--line-soft); padding-inline-end: var(--space-10); line-height: 1.3; }
.lesson-time small { display: block; font-size: var(--font-size-mock-2xs); color: var(--muted); margin-block-start: var(--space-2); }
.lesson-detail { flex: 1; min-width: 0; }
.lesson-detail strong { display: block; font-size: var(--font-size-mock-xs); }
.lesson-detail > span { font-size: var(--font-size-mock-2xs); color: var(--muted); }
.attendance-strip { display: flex; justify-content: space-between; align-items: center; font-size: var(--font-size-mock-xs); margin-block-start: var(--space-12); }
.attendance-strip .status-dot { width: 5px; height: 5px; margin-inline-end: var(--space-6); box-shadow: none; }
.attendance-strip strong { font-size: var(--font-size-base); color: var(--brand-success-green); }
.attendance-strip small { font-size: var(--font-size-mock-xs); color: var(--muted); }
.progress-track { height: 4px; background: var(--line-soft); border-radius: var(--radius-xs); margin-block-start: var(--space-6); }
.progress-track span { display: block; width: 91%; height: 100%; background: var(--brand-success-green); border-radius: var(--radius-xs); }
.floating-card { position: absolute; inset-block-end: 3px; inset-inline-end: -20px; display: flex; gap: var(--space-12); align-items: center; background: var(--paper); border: 1px solid var(--line); border-radius: 13px; padding: var(--space-16) var(--space-20); box-shadow: var(--shadow-soft); transform: rotate(var(--tilt-card)); }
.floating-card strong { display: block; font-size: var(--font-size-md); }
.floating-card div > span { display: block; font-size: var(--font-size-mock-sm); color: var(--muted); }
.check-circle { display: grid; place-items: center; width: 32px; height: 32px; background: var(--tint-green); color: var(--brand-success-green); border-radius: 50%; }
.check-circle .icon { width: var(--icon-sm); height: var(--icon-sm); }
.qr-art { width: 35px; height: 35px; margin-inline-start: var(--space-12); background: repeating-conic-gradient(var(--brand-navy) 0 25%, transparent 0 50%) 0 0 / 10px 10px; border: 5px solid var(--paper); outline: 1px solid var(--line); }
.preview-caption { position: absolute; inset-block-end: -29px; inset-inline-start: var(--space-16); font-size: var(--font-size-mock-xs); color: var(--muted); }

/* ---- Feature ribbon and cards -------------------------------------------- */

.feature-ribbon { border-block: 1px solid var(--line); background: var(--paper-alt); }
.ribbon-inner { display: flex; justify-content: space-between; align-items: center; gap: var(--space-24); padding-block: var(--space-24); font-size: var(--font-size-md); color: var(--muted); }
.ribbon-intro { font-size: var(--font-size-sm); font-weight: 600; color: var(--ink); padding-inline-end: var(--space-32); border-inline-end: 1px solid var(--line); }
.ribbon-item { display: inline-flex; align-items: center; gap: var(--space-8); }
.ribbon-item .icon { color: var(--accent); }

.features-section { padding-block: var(--space-90); }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-32); margin-block-end: 38px; }
.section-heading h2, .workflow-section h2, .faq-section h2 { font-size: var(--font-size-4xl); line-height: 1.4; letter-spacing: -1px; margin-block-start: var(--space-12) !important; }
.section-heading p, .workflow-section p, .faq-section > div > p { font-size: var(--font-size-base); color: var(--muted); line-height: 2; }
.section-heading p { margin-block-end: var(--space-8) !important; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-20); }
.feature-card { padding: var(--space-28); border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper); overflow: hidden; }
.feature-students { background: var(--tint-blue); border-color: var(--line); }
.card-top { display: flex; align-items: center; justify-content: space-between; margin-block-end: var(--space-24); }
.feature-icon { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--paper); color: var(--accent); flex-shrink: 0; }
.feature-icon .icon { width: 22px; height: 22px; }
.card-index { font-size: var(--font-size-mock-xs); letter-spacing: 1px; color: var(--muted); }
.feature-card h3 { font-size: var(--font-size-2xl); margin-block-end: var(--space-12) !important; font-weight: 650; }
.feature-card p { font-size: var(--font-size-md); line-height: 2; color: var(--muted); min-height: 78px; }
.student-mini { display: flex; align-items: center; gap: var(--space-10); background: var(--paper); border: 1px solid var(--line-soft); border-radius: var(--radius-md); padding: 15px; margin-block-start: 26px; }
.student-avatar { width: 34px; height: 34px; background: var(--tint-blue); border-radius: 50%; display: grid; place-items: center; color: var(--brand-navy); font-weight: 600; }
.student-mini > div { flex: 1; }
.student-mini strong { font-size: var(--font-size-xs); display: block; }
.student-mini small { font-size: var(--font-size-mock-xs); display: block; color: var(--muted); }
.days-mini { display: flex; justify-content: space-between; gap: 5px; margin-block-start: 26px; font-size: var(--font-size-mock-sm); color: var(--muted); }
.days-mini > span { text-align: center; padding: 7px var(--space-10); border-radius: var(--radius-sm); flex: 1; }
.days-mini small { display: block; font-size: var(--font-size-xl); font-weight: 600; color: var(--ink); }
.days-mini .selected-day { background: var(--brand-navy); color: var(--brand-surface); }
.selected-day small { color: var(--brand-surface); }
.selected-day i { display: block; width: 3px; height: 3px; background: var(--brand-surface); border-radius: 50%; margin: auto; }
.payment-mini { margin-block-start: 26px; padding: var(--space-12) var(--space-16); border: 1px solid var(--line-soft); border-radius: var(--radius-md); background: var(--paper); font-size: var(--font-size-xs); }
.payment-head { display: flex; justify-content: space-between; align-items: center; }
.payment-bars { display: flex; gap: 5px; padding-block-start: 15px; }
.payment-bars i { height: 11px; border-radius: 3px; background: color-mix(in srgb, var(--brand-success-green) 35%, var(--paper)); flex: 1; }
.secondary-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-32); margin-block-start: 38px; padding-block-start: 35px; border-block-start: 1px solid var(--line); }
.secondary-features > div { display: flex; gap: var(--space-14); }
.secondary-features .feature-icon { width: 38px; height: 38px; border: none; background: var(--tint-blue); border-radius: var(--radius-sm); }
.secondary-features .feature-icon .icon { width: 18px; height: 18px; }
.secondary-features h3 { font-size: 15px; font-weight: 600; margin-block-end: var(--space-8) !important; }
.secondary-features p { font-size: var(--font-size-sm); color: var(--muted); line-height: 1.9; }

/* ---- What the name means ------------------------------------------------- */

.name-section { padding-block: var(--space-90); }
.name-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-20); }
.name-card .card-top { margin-block-end: var(--space-16); }
.name-card p { min-height: 0; }
.name-letter { font-size: 56px; font-weight: 800; line-height: 1; color: var(--brand-red); }
.name-word { text-align: start; }
.name-word::first-letter { color: var(--brand-red); }
.name-phrase { margin-block-start: var(--space-32); padding: var(--space-32); border-radius: var(--radius-lg); background: var(--tint-blue); text-align: center; }
.name-phrase p { margin: 0; }
.name-phrase-en { font-size: var(--font-size-xl); font-weight: 600; color: var(--brand-navy); line-height: 1.6; }
.name-phrase-en b { color: var(--brand-red); font-weight: 800; }
.name-phrase-meaning { margin-block-start: var(--space-8) !important; font-size: var(--font-size-base); color: var(--muted); line-height: 2; }
[dir="rtl"] .name-letter, [dir="rtl"] .name-phrase-en { letter-spacing: 0; }

/* ---- Workflow ------------------------------------------------------------ */

.workflow-section { background: var(--paper-alt); padding-block: var(--space-72); border-block: 1px solid var(--line); }
.workflow-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: center; }
.workflow-section p { margin-block-start: var(--space-20) !important; }
.workflow-section .text-link { margin-block-start: 26px; color: var(--brand-navy) !important; }
.workflow-steps { list-style: none; margin: 0; padding: 0; }
.workflow-steps li { display: flex; gap: 22px; padding-block: 22px; position: relative; }
.workflow-steps li:not(:last-child)::after { content: ""; position: absolute; inset-block: 63px -19px; inset-inline-start: 21px; width: 1px; background: var(--line); }
.step-number { display: grid; place-items: center; height: 44px; width: 44px; border-radius: 50%; background: var(--paper); border: 1px solid var(--line); color: var(--accent); font-size: var(--font-size-base); flex-shrink: 0; }
.workflow-steps h3 { font-size: 19px; font-weight: 600; }
.workflow-steps p { font-size: var(--font-size-sm); margin-block-start: var(--space-6) !important; }

/* ---- FAQ ----------------------------------------------------------------- */

.faq-section { display: grid; grid-template-columns: 0.75fr 1.25fr; gap: 100px; padding-block: var(--space-90); }
.faq-section > div > p { margin-block-start: var(--space-14) !important; }
.faq-list details { border-block-end: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: var(--space-20); cursor: pointer; list-style: none; padding-block: 21px; font-size: 15px; font-weight: 600; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-plus { color: var(--accent); transition: transform 0.2s; }
.faq-list details[open] .faq-plus { transform: rotate(45deg); }
.faq-list details p { font-size: var(--font-size-md); line-height: 2; color: var(--muted); padding-block-end: 22px; }

/* ---- Closing and footer -------------------------------------------------- */

.closing-section { background: var(--brand-navy); color: var(--brand-surface); border-radius: var(--radius-xl); padding: var(--space-48) var(--space-60); display: flex; justify-content: space-between; align-items: center; overflow: hidden; position: relative; }
.closing-content { z-index: 1; }
.closing-section .eyebrow { color: color-mix(in srgb, var(--brand-surface) 80%, transparent); }
.closing-section h2 { font-size: 40px; line-height: 1.5; letter-spacing: -1px; margin: var(--space-14) 0 25px !important; }
.closing-art { position: relative; width: 300px; height: 260px; display: grid; place-items: center; flex-shrink: 0; }
.closing-art > span { font-size: 170px; font-weight: 800; color: var(--brand-red); line-height: 1; transform: rotate(var(--tilt-letter)); }
.closing-art i { position: absolute; border: 1px solid color-mix(in srgb, var(--brand-surface) 14%, transparent); width: 290px; height: 290px; border-radius: 50%; transform: rotate(25deg); }
.closing-art i:nth-of-type(2) { width: 370px; height: 180px; }
.closing-art i:nth-of-type(3) { width: 400px; height: 330px; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 25px; padding-block: 34px var(--space-40); margin-block-start: var(--space-20) !important; }
.site-footer .brand { font-size: var(--font-size-base); }
.site-footer p, .site-footer > span { font-size: var(--font-size-xs); color: var(--muted); }

/* ---- Responsive ---------------------------------------------------------- */

@media (min-width: 1450px) {
  .hero { min-height: 720px; }
  .hero h1 { font-size: 70px; }
}

@media (max-width: 1100px) {
  #landing .container { width: calc(100% - 56px); }
  .hero { gap: var(--space-32); grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 50px; }
  .hero-description { font-size: var(--font-size-lg); }
  .hero-actions { gap: var(--space-16); }
  .hero-actions .button { font-size: var(--font-size-sm); padding: var(--space-12) var(--space-16); gap: var(--space-14); }
  .site-header nav { gap: var(--space-20); }
  .mock-sidebar { width: 80px; font-size: var(--font-size-mock-xs); }
  .mock-content { padding: var(--space-16) var(--space-10); }
  .date-chip { display: none; }
  .welcome h2 { font-size: var(--font-size-sm); }
  .lesson-detail strong { font-size: var(--font-size-mock-2xs); }
  .lesson-detail > span { font-size: 7px; }
  .stat { padding: var(--space-8); }
  .feature-card { padding: 22px; }
  .feature-card h3 { font-size: var(--font-size-xl); }
  .feature-card p { min-height: 100px; }
  .ribbon-inner { font-size: var(--font-size-xs); gap: var(--space-16); }
  .ribbon-intro { padding-inline-end: var(--space-16); }
  .workflow-layout, .faq-section { gap: 50px; }
}

@media (max-width: 780px) {
  #landing .container { width: calc(100% - 40px); }
  .site-header { min-height: var(--header-height-narrow); }
  .site-header nav { display: none; }
  .brand-text { font-size: 17px; }
  .brand small { font-size: var(--font-size-mock-xs); }
  .brand img { width: 38px; height: 38px; }
  .hero { grid-template-columns: 1fr; gap: 64px; padding-block: var(--space-48) var(--space-72); }
  .hero-copy { text-align: center; }
  .hero h1 { font-size: 52px; letter-spacing: -1px; }
  .hero-description { max-width: 450px; margin-inline: auto !important; font-size: var(--font-size-lg); }
  .hero-actions, .hero-note, .hero-platforms { justify-content: center; }
  .hero-actions .button { font-size: var(--font-size-base); padding: var(--space-14) var(--space-24); }
  .hero-platforms { margin-block-start: var(--space-24); }
  .product-stage { max-width: 560px; width: 94%; margin-inline: auto; }
  .stage-orbit { inset: -20px -8px; }
  .dashboard-body { min-height: 345px; }
  .mock-sidebar { width: 100px; font-size: var(--font-size-xs); }
  .mock-content { padding: var(--space-20) var(--space-16); }
  .welcome h2 { font-size: var(--font-size-base); }
  .stat { padding: var(--space-10); }
  .lesson-detail strong { font-size: var(--font-size-mock-sm); }
  .lesson-detail > span { font-size: var(--font-size-mock-2xs); }
  .floating-card { inset-inline-end: -6px; inset-block-end: var(--space-6); }
  .ribbon-inner { flex-wrap: wrap; justify-content: center; gap: var(--space-12) var(--space-24); padding-block: var(--space-20); }
  .ribbon-intro { width: 100%; text-align: center; border: 0; padding: 0; }
  .features-section { padding-block: var(--space-60); }
  .section-heading { display: block; }
  .section-heading h2, .workflow-section h2, .faq-section h2 { font-size: var(--font-size-3xl); }
  .section-heading p { margin-block-start: 18px !important; }
  .feature-grid { grid-template-columns: 1fr; }
  .name-grid { grid-template-columns: repeat(2, 1fr); }
  .name-section { padding-block: var(--space-60); }
  .name-phrase { padding: var(--space-24) var(--space-16); }
  .name-phrase-en { font-size: var(--font-size-lg); }
  .feature-card { padding: var(--space-28); }
  .feature-card p { min-height: 0; }
  .feature-card h3 { font-size: var(--font-size-2xl); }
  .student-mini, .days-mini, .payment-mini { max-width: 350px; }
  .secondary-features { grid-template-columns: 1fr; gap: 27px; }
  .workflow-section { padding-block: 50px; }
  .workflow-layout { grid-template-columns: 1fr; gap: var(--space-24); }
  .faq-section { grid-template-columns: 1fr; gap: 25px; padding-block: var(--space-60); }
  .closing-section { padding: 36px var(--space-28); }
  .closing-section h2 { font-size: 32px; }
  .closing-art { width: 130px; height: 180px; margin-inline-end: -30px; }
  .closing-art > span { font-size: 110px; }
  .closing-art i { width: 200px; height: 200px; }
  .closing-art i:nth-of-type(2) { width: 240px; height: 120px; }
  .closing-art i:nth-of-type(3) { width: 270px; height: 240px; }
  .closing-section .eyebrow { font-size: var(--font-size-xs); }
  .site-footer { flex-wrap: wrap; justify-content: center; text-align: center; gap: var(--space-16); }
  .site-footer p { width: 100%; order: 3; }
}

@media (max-width: 480px) {
  .name-grid { grid-template-columns: 1fr; }
  #landing .container { width: calc(100% - 32px); }
  .brand small { display: none; }
  .header-actions { gap: var(--space-8); }
  .hero h1 { font-size: 42px; }
  .hero-description { font-size: var(--font-size-base); }
  .hero-actions { flex-direction: column; gap: var(--space-20); }
  .hero-note { font-size: var(--font-size-mock-sm); }
  /* Icons only: the labels do not fit a phone-width miniature. */
  .mock-sidebar { width: 40px; padding: var(--space-14) var(--space-4); align-items: center; }
  .mock-sidebar > div { padding: var(--space-6); }
  .mock-sidebar span { display: none; }
  .mock-content { padding: var(--space-14) var(--space-8); }
  .welcome h2 { font-size: var(--font-size-xs); }
  .dashboard-body { min-height: 305px; }
  .stat { padding: 7px; font-size: var(--font-size-mock-2xs); }
  .stat strong { font-size: var(--font-size-xl); }
  .lesson { gap: var(--space-6); padding: var(--space-8) 5px; flex-wrap: wrap; }
  .lesson-detail strong { font-size: var(--font-size-mock-2xs); }
  .lesson-time { font-size: var(--font-size-mock-sm); }
  .lesson .pill { font-size: 7px; padding: var(--space-2) 5px; }
  .floating-card { padding: var(--space-12); gap: var(--space-8); }
  .floating-card strong { font-size: var(--font-size-xs); }
  .floating-card div > span { font-size: var(--font-size-mock-xs); }
  .qr-art { margin-inline-start: 5px; }
  .closing-art { display: none; }
  .closing-section h2 { font-size: 30px; }
}

/* The smallest phones: the enter button keeps its icon and accessible name only,
   so brand, language switch and button all fit one row at 320px. */
@media (max-width: 380px) {
  .header-actions .button-small > span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
  .header-actions .button-small { padding-inline: var(--space-12); }
  .brand-text { font-size: var(--font-size-lg); letter-spacing: 0; }
  .brand { gap: var(--space-6); }
  .brand img { width: 32px; height: 32px; }
  .site-header { gap: var(--space-8); }
  .lang-toggle { padding-inline: var(--space-10); gap: var(--space-6); }
  .hero h1 { font-size: 38px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button, .faq-plus { transition: none; }
  .button:hover { transform: none; }
}