/* ==========================================================================
   مَلِكُ النَّحْوِ — نظام التصميم
   لوحة الألوان:
     --ivory        الخلفية العامة (عاجي هادئ)
     --paper        خلفية البطاقات (أبيض دافئ)
     --ink          لون النص الأساسي (أسود دافئ، ليس أسودَ خامًا)
     --green        اللون الأساسي/العنوان (أخضر عميق موروث من أغلفة المخطوطات)
     --green-deep   ظل أغمق من الأخضر للتباين
     --gold         لون التمييز (ذهبي مطفأ، لمسة "الملك")
     --line         حدود شعرية هادئة
   ========================================================================== */

:root {
  --ivory: #FAF6EE;
  --paper: #FFFFFF;
  --ink: #2B2A26;
  --ink-soft: #55534C;
  --green: #1F3B2E;
  --green-deep: #142A20;
  --gold: #A9803F;
  --gold-soft: #C9A662;
  --line: #E6DCC3;
  --line-soft: #EFE8D6;

  --font-display: "Amiri", "Traditional Arabic", serif;
  --font-body: "Cairo", "Tahoma", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  margin: 0;
  background: var(--ivory);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img, svg {
  display: block;
}

.container {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px;
}

/* -------------------------------------------------------------------------
   خلفية زخرفية هادئة جدًا — نسيج ورقي خفيف بدرجة العاج
   ------------------------------------------------------------------------- */
.paper-texture {
  background-image:
    radial-gradient(circle at 15% 20%, rgba(169, 128, 63, 0.05), transparent 45%),
    radial-gradient(circle at 85% 75%, rgba(31, 59, 46, 0.05), transparent 45%);
}

/* -------------------------------------------------------------------------
   الرأس / الهوية
   ------------------------------------------------------------------------- */
.top-bar {
  padding: 20px 0;
}

.top-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--green);
}

.brand .crown-mark {
  font-size: 1.3rem;
}

.back-link {
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--ink-soft);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.back-link:hover {
  color: var(--green);
  border-bottom-color: var(--gold-soft);
}

/* -------------------------------------------------------------------------
   البطل / المقدمة
   ------------------------------------------------------------------------- */
.hero {
  padding: 56px 0 40px;
  text-align: center;
}

.hero-emblem {
  font-size: 2.6rem;
  margin-bottom: 18px;
  opacity: 0;
  animation: emblem-rise 0.9s ease-out 0.1s forwards;
}

@keyframes emblem-rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 5vw, 3rem);
  color: var(--green);
  margin: 0 0 6px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.hero .tagline {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 520px;
  margin: 0 auto;
}

.ornament {
  width: 120px;
  height: 14px;
  margin: 26px auto 0;
  opacity: 0.75;
}

/* -------------------------------------------------------------------------
   شبكة الأقسام في الصفحة الرئيسية
   ------------------------------------------------------------------------- */
.sections-area {
  padding: 8px 0 80px;
}

.featured-card {
  display: flex;
  align-items: center;
  gap: 28px;
  background: var(--green);
  color: var(--ivory);
  border-radius: 4px;
  padding: 34px 40px;
  margin-bottom: 22px;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.25s ease;
}

.featured-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(201, 166, 98, 0.35);
  border-radius: 4px;
  pointer-events: none;
  margin: 8px;
}

.featured-card:hover {
  box-shadow: 0 8px 28px -12px rgba(20, 42, 32, 0.45);
}

.featured-card .icon {
  font-size: 2.4rem;
  flex-shrink: 0;
}

.featured-card .content h2 {
  font-family: var(--font-display);
  font-size: 1.55rem;
  margin: 0 0 6px;
  color: var(--ivory);
}

.featured-card .content p {
  margin: 0;
  color: #D9D2BE;
  font-size: 0.96rem;
  max-width: 460px;
}

.featured-card .go {
  margin-inline-start: auto;
  font-size: 0.92rem;
  color: var(--gold-soft);
  border-bottom: 1px solid var(--gold-soft);
  white-space: nowrap;
  padding-bottom: 2px;
}

.grade-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.grade-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 28px 24px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.grade-card:hover {
  border-color: var(--gold-soft);
  transform: translateY(-2px);
}

.grade-card .icon {
  font-size: 1.9rem;
  margin-bottom: 14px;
}

.grade-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--green);
  margin: 0 0 8px;
}

.grade-card p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin: 0 0 16px;
  min-height: 3.2em;
}

.grade-card .go {
  font-size: 0.88rem;
  color: var(--gold);
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  display: inline-block;
}

.grade-card:hover .go {
  border-bottom-color: var(--gold-soft);
}

/* -------------------------------------------------------------------------
   صفحة القسم الداخلية
   ------------------------------------------------------------------------- */
.section-hero {
  padding: 44px 0 20px;
  text-align: center;
}

.section-hero .icon {
  font-size: 2.4rem;
  margin-bottom: 14px;
}

.section-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  color: var(--green);
  margin: 0 0 8px;
}

.section-hero .sub {
  color: var(--ink-soft);
  font-size: 1rem;
  max-width: 480px;
  margin: 0 auto;
}

.links-area {
  padding: 30px 0 90px;
}

.links-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 560px;
  margin: 0 auto;
}

.link-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 18px 22px;
  transition: border-color 0.2s ease, transform 0.15s ease;
}

.link-row.is-active {
  cursor: pointer;
}

.link-row.is-active:hover {
  border-color: var(--gold-soft);
  transform: translateX(-2px);
}

html[dir="rtl"] .link-row.is-active:hover {
  transform: translateX(2px);
}

.link-row .label {
  font-size: 1.02rem;
  color: var(--ink);
}

.link-row .status {
  font-size: 0.82rem;
  color: var(--gold);
  flex-shrink: 0;
}

.link-row.is-disabled {
  opacity: 0.55;
}

.link-row.is-disabled .status {
  color: var(--ink-soft);
}

.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--green-deep);
  color: var(--ivory);
  padding: 12px 22px;
  border-radius: 4px;
  font-size: 0.9rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 40;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* -------------------------------------------------------------------------
   صفحة الدرس النصي
   ------------------------------------------------------------------------- */
.lesson-hero {
  padding: 44px 0 10px;
  text-align: center;
}

.lesson-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.2rem);
  color: var(--green);
  margin: 0 0 8px;
}

.lesson-hero .sub {
  color: var(--gold);
  font-size: 0.9rem;
  margin: 0;
}

.lesson-area {
  padding: 30px 0 90px;
}

.lesson-paper {
  max-width: 680px;
  margin: 0 auto;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 40px clamp(24px, 6vw, 56px);
}

.lesson-body {
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 2;
  color: var(--ink);
}

.lesson-body p {
  margin: 0 0 1.3em;
}

.lesson-body p:last-child {
  margin-bottom: 0;
}

/* -------------------------------------------------------------------------
   التذييل
   ------------------------------------------------------------------------- */
footer {
  border-top: 1px solid var(--line-soft);
  padding: 26px 0;
}

footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

footer p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

/* -------------------------------------------------------------------------
   استجابة الهاتف
   ------------------------------------------------------------------------- */
@media (max-width: 760px) {
  .grade-grid {
    grid-template-columns: 1fr;
  }

  .featured-card {
    flex-direction: column;
    text-align: center;
    padding: 30px 24px;
  }

  .featured-card .go {
    margin-inline-start: 0;
  }

  .hero {
    padding: 40px 0 30px;
  }

  footer .container {
    flex-direction: column;
    text-align: center;
  }
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}