/* =========================================================
   نظام الألوان والمتغيرات (Design Tokens)
   ========================================================= */
:root {
  /* الوضع الفاتح */
  --bg: #F4F7FA;
  --surface: #FFFFFF;
  --text: #17242F;
  --muted: #5C7080;
  --border: #DCE4EC;

  --primary: #1D4E89;
  --primary-dark: #143B68;
  --accent: #1E8A7A;
  --accent-soft: #E4F3F0;

  --grid-line: rgba(29, 78, 137, 0.06);

  --radius: 10px;
  --shadow: 0 1px 2px rgba(23, 36, 47, 0.04), 0 8px 24px rgba(23, 36, 47, 0.06);
}

[data-theme="dark"] {
  --bg: #0E1620;
  --surface: #16212E;
  --text: #E7EEF5;
  --muted: #8CA0B3;
  --border: #26313E;

  --primary: #5B9BD9;
  --primary-dark: #7FB2E3;
  --accent: #3FC2AC;
  --accent-soft: rgba(63, 194, 172, 0.12);

  --grid-line: rgba(91, 155, 217, 0.07);

  --shadow: 0 1px 2px rgba(0, 0, 0, 0.2), 0 8px 24px rgba(0, 0, 0, 0.3);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Cairo', 'Inter', sans-serif;
  transition: background 0.25s ease, color 0.25s ease;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, .brand-name {
  font-family: 'Space Grotesk', 'Cairo', sans-serif;
}

/* إمكانية الوصول: إبراز التركيز عبر لوحة المفاتيح */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* =========================================================
   الهيدر
   ========================================================= */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  font-size: 1rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.pill-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
}

.pill-btn:hover { border-color: var(--primary); }

/* =========================================================
   قسم البداية (Hero) — خلفية بنمط ورق الشبكة المخبري
   ========================================================= */
.hero {
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 28px 28px;
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--border);
}

.hero-eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--accent);
  letter-spacing: 0.04em;
  font-size: 0.85rem;
  margin: 0 0 12px;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.15;
  margin: 0 0 16px;
  color: var(--text);
}

.hero-sub {
  max-width: 560px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin: 0;
}

/* =========================================================
   شبكة المنتجات
   ========================================================= */
.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 48px 0 20px;
}

.section-heading h2 {
  font-size: 1.5rem;
  margin: 0;
}

.section-count {
  font-family: 'IBM Plex Mono', monospace;
  color: var(--muted);
  font-size: 0.85rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  padding-bottom: 64px;
}

.loading-msg { color: var(--muted); }

.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.product-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
}

.product-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.product-body {
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.product-name {
  font-weight: 600;
  font-size: 1rem;
  margin: 0;
}

/* عنصر مميز: خط تدريج شبيه بمسطرة القياس، يفصل بين اسم المنتج ومواصفاته */
.tick-divider {
  width: 100%;
  height: 6px;
  background-image: repeating-linear-gradient(
    90deg,
    var(--border) 0,
    var(--border) 1px,
    transparent 1px,
    transparent 8px
  );
  background-position: bottom;
  background-repeat: repeat-x;
  background-size: 100% 6px;
  margin: 0;
}

.product-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
}

.product-desc {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 8px;
}

.product-price {
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--primary);
}

.order-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 9px 16px;
  border-radius: 8px;
  font-family: 'Cairo', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.order-btn:hover { opacity: 0.88; }

/* =========================================================
   الفوتر
   ========================================================= */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  align-items: center;
}

.footer-note {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 8px 0 0;
}

.footer-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0 0 8px;
}

.footer-call {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 10px 18px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
}

/* =========================================================
   الجوال (Responsive)
   ========================================================= */
@media (max-width: 560px) {
  .hero { padding: 48px 0 40px; }
  .product-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

/* =========================================================
   صفحة تسجيل الدخول
   ========================================================= */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 28px 28px;
}

.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px 32px;
  max-width: 400px;
  width: 100%;
}

.auth-brand { margin-bottom: 20px; }

.auth-title {
  font-size: 1.3rem;
  margin: 0 0 8px;
}

.auth-sub {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 24px;
  line-height: 1.6;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.auth-label {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 10px;
}

.auth-input {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
}

.auth-input:focus { border-color: var(--primary); outline: none; }

.auth-error {
  color: #C0392B;
  font-size: 0.85rem;
  margin: 4px 0 0;
}

.auth-submit {
  margin-top: 18px;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 11px;
  border-radius: 8px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
}

.auth-submit:disabled { opacity: 0.7; cursor: default; }
.auth-submit:hover:not(:disabled) { opacity: 0.92; }

.auth-back {
  display: block;
  text-align: center;
  margin-top: 20px;
  color: var(--muted);
  font-size: 0.85rem;
  text-decoration: none;
}
.auth-back:hover { color: var(--primary); }

/* =========================================================
   لوحة الإدارة
   ========================================================= */
.admin-main {
  padding: 32px 24px 64px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.admin-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}

.admin-card h2 { margin: 0 0 16px; font-size: 1.2rem; }

.admin-form { display: flex; flex-direction: column; gap: 4px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 10px;
}

.form-field { display: flex; flex-direction: column; gap: 6px; }

.form-field label {
  font-size: 0.82rem;
  color: var(--muted);
}

.form-field input,
.form-field textarea {
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 0.92rem;
  resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus { border-color: var(--primary); outline: none; }

.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

.admin-list { display: flex; flex-direction: column; gap: 10px; }

.admin-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
}

.admin-row-info { display: flex; flex-direction: column; gap: 4px; }

.admin-row-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  color: var(--muted);
}

.admin-row-actions { display: flex; gap: 8px; flex-shrink: 0; }

@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
  .admin-row { flex-direction: column; align-items: flex-start; }
}

.image-preview {
  margin-top: 8px;
  width: 100%;
  max-width: 180px;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border);
}