/* ============================================
   Strawberry Study – یکپارچه، مات، فونت وزیر
   ============================================ */

/* ----- فونت ----- */
@font-face { font-family:'Vazirmatn'; src:url('../../fonts/Vazirmatn-Thin.woff2') format('woff2'); font-weight:100; font-display:swap; }
@font-face { font-family:'Vazirmatn'; src:url('../../fonts/Vazirmatn-ExtraLight.woff2') format('woff2'); font-weight:200; font-display:swap; }
@font-face { font-family:'Vazirmatn'; src:url('../../fonts/Vazirmatn-Light.woff2') format('woff2'); font-weight:300; font-display:swap; }
@font-face { font-family:'Vazirmatn'; src:url('../../fonts/Vazirmatn-Regular.woff2') format('woff2'); font-weight:400; font-display:swap; }
@font-face { font-family:'Vazirmatn'; src:url('../../fonts/Vazirmatn-Medium.woff2') format('woff2'); font-weight:500; font-display:swap; }
@font-face { font-family:'Vazirmatn'; src:url('../../fonts/Vazirmatn-SemiBold.woff2') format('woff2'); font-weight:600; font-display:swap; }
@font-face { font-family:'Vazirmatn'; src:url('../../fonts/Vazirmatn-Bold.woff2') format('woff2'); font-weight:700; font-display:swap; }
@font-face { font-family:'Vazirmatn'; src:url('../../fonts/Vazirmatn-ExtraBold.woff2') format('woff2'); font-weight:800; font-display:swap; }
@font-face { font-family:'Vazirmatn'; src:url('../../fonts/Vazirmatn-Black.woff2') format('woff2'); font-weight:900; font-display:swap; }

/* ----- متغیرهای طراحی ----- */
:root {
  --bg: #fff8fa;
  --bg-soft: #fff1f4;
  --surface: rgba(255,255,255,0.72);
  --surface-strong: rgba(255,255,255,0.88);
  --card-bg: linear-gradient(180deg, rgba(212,123,140,0.08) 0%, rgba(212,123,140,0.03) 100%);
  --card-border: 1px solid rgba(212,123,140,0.20);
  --primary: #d47b8c;
  --primary-dark: #bf667a;
  --primary-hover: #b85d70;
  --primary-soft: #f4d7de;
  --primary-ring: rgba(212,123,140,0.22);
  --accent: #8fb7c9;
  --accent-soft: #dcecf3;
  --success: #68a97d;
  --success-hover: #5a966d;
  --success-soft: #e4f3e8;
  --warning: #e6b565;
  --warning-soft: #fff3dc;
  --danger: #d96c6c;
  --danger-hover: #c95c5c;
  --danger-soft: #fdecec;
  --text: #4d3b42;
  --text-strong: #35272d;
  --muted: #8b7179;
  --border: rgba(212,123,140,0.16);
  --border-strong: rgba(212,123,140,0.26);
  --shadow-xs: 0 4px 10px rgba(186,120,137,0.08);
  --shadow-sm: 0 8px 24px rgba(186,120,137,0.10);
  --shadow-md: 0 14px 34px rgba(186,120,137,0.14);
  --shadow-lg: 0 22px 50px rgba(186,120,137,0.16);
  --radius-sm: 12px;
  --radius: 18px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --container: 1200px;
  --transition-fast: 0.2s ease;
  --transition: 0.4s ease;
}

/* ----- ریست ----- */
*, *::before, *::after { box-sizing:border-box; margin:0; padding:0; }
html { -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body {
  font-family:'Vazirmatn', Tahoma, Arial, sans-serif;
  background:
    radial-gradient(circle at top right, rgba(212,123,140,0.08), transparent 28%),
    radial-gradient(circle at top left, rgba(143,183,201,0.10), transparent 24%),
    linear-gradient(180deg, #fffafd 0%, #fff5f7 45%, #fff9fb 100%);
  color:var(--text);
  direction:rtl;
  line-height:1.75;
  min-height:100vh;
}
img { max-width:100%; display:block; }
a { color:var(--primary-dark); text-decoration:none; transition:color var(--transition-fast); }
a:hover { color:var(--primary-hover); }

/* ----- ظرف اصلی ----- */
.container { width:100%; max-width:var(--container); margin:0 auto; padding:16px; }

/* ----- ناوبری ----- */
nav {
  position:sticky; top:0; z-index:50;
  background:rgba(255,248,250,0.86);
  border-bottom:1px solid rgba(212,123,140,0.10);
  backdrop-filter:saturate(140%) blur(10px);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  border-radius:0 0 18px 18px;
  padding:12px 14px;
  margin-bottom:24px;
}
nav .container, nav { display:flex; flex-wrap:wrap; gap:12px; align-items:center; justify-content:space-between; }
nav a {
  display:inline-flex; align-items:center; min-height:42px; padding:10px 14px;
  border-radius:999px; text-decoration:none; color:var(--primary-dark); font-weight:600;
  background:rgba(255,255,255,0.3);
  transition: background var(--transition-fast), color var(--transition-fast);
}
nav a:hover { background:rgba(212,123,140,0.12); color:var(--primary-hover); }

/* ----- کارت‌ها: زمینه مات صورتی ----- */
.card {
  background: var(--card-bg);
  border:var(--card-border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:18px;
  margin-bottom:20px;
  backdrop-filter: saturate(135%) blur(12px);
  -webkit-backdrop-filter: saturate(135%) blur(12px);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.card h1,.card h2 { margin-bottom:16px; color:var(--text-strong); }
.card p { margin-bottom:10px; color:var(--muted); }

/* ----- فرم‌ها ----- */
label { display:block; margin-bottom:6px; font-weight:700; color:var(--text-strong); }
input[type="text"], input[type="email"], input[type="password"], textarea, select {
  width:100%; border:1px solid var(--border); background:rgba(255,255,255,0.84);
  color:var(--text); border-radius:14px; padding:12px 14px; margin-bottom:14px;
  outline:none; font-family:inherit; transition: border var(--transition-fast), box-shadow var(--transition-fast);
}
textarea { min-height:120px; resize:vertical; }
input:focus, textarea:focus, select:focus {
  border-color:var(--primary); box-shadow:0 0 0 4px var(--primary-ring); background:#fff;
}

/* ----- دکمه‌ها (فونت وزیر اجباری) ----- */
button, .btn {
  font-family: 'Vazirmatn', Tahoma, Arial, sans-serif;
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  min-height:46px; padding:11px 18px; border:1px solid transparent;
  border-radius:14px; cursor:pointer; font-weight:800; font-size:0.96rem;
  line-height:1.2; text-decoration:none; white-space:nowrap;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
              background var(--transition-fast), color var(--transition-fast);
}
button:hover, .btn:hover { transform:translateY(-1px); }
button:active, .btn:active { transform:translateY(0); }
button:focus-visible, .btn:focus-visible { outline:none; box-shadow:0 0 0 4px var(--primary-ring); }
button:disabled, .btn:disabled { opacity:0.6; cursor:not-allowed; transform:none; }

/* ----- انواع دکمه ----- */
.btn-primary {
  background: linear-gradient(135deg, #d47b8c 0%, #c96c7f 100%);
  color:#fff;
  box-shadow:0 12px 24px rgba(212,123,140,0.22);
  border-color: rgba(212,123,140,0.4);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #cc7183 0%, #b85f72 100%);
  color:#fff;
}

.btn-success {
  background: linear-gradient(180deg, var(--success) 0%, #5f9972 100%);
  color:#fff;
  box-shadow:0 10px 22px rgba(104,169,125,0.20);
}
.btn-success:hover { background: linear-gradient(180deg, var(--success-hover) 0%, #4f8861 100%); }

.btn-outline {
  background: rgba(255,248,250,0.5);
  color: var(--primary-dark);
  border:1px solid rgba(212,123,140,0.3);
}
.btn-outline:hover {
  background: rgba(212,123,140,0.1);
  color: var(--primary-dark);
  border-color: rgba(212,123,140,0.5);
}

.btn-danger {
  background: linear-gradient(180deg, #d96c6c 0%, #ca5d5d 100%);
  color:#fff;
  box-shadow:0 10px 22px rgba(217,108,108,0.18);
}
.btn-danger:hover { background: linear-gradient(180deg, #c95c5c 0%, #bb5050 100%); }

.btn-secondary {
  background: rgba(255,248,250,0.8);
  color: #b85f72;
  border:1px solid rgba(212,123,140,0.24);
  box-shadow:0 10px 20px rgba(212,123,140,0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.btn-secondary:hover {
  background: rgba(243,213,220,0.55);
  color: #9f4f61;
  border-color: rgba(212,123,140,0.34);
}

.btn-sm {
  min-height:36px; padding:8px 12px; font-size:0.86rem; border-radius:12px;
}

/* ----- لینک‌های زیر فرم (وسط‌چین) ----- */
p.link {
  text-align: center;
  margin-top: 1.8rem;
  font-weight: 500;
  color: var(--muted);
}
p.link a {
  color: var(--primary-dark);
  font-weight: 700;
}
p.link a:hover { color: var(--primary-hover); text-decoration: underline; }

/* ----- هشدارها ----- */
.alert {
  padding:14px 16px; margin-bottom:18px; border-radius:16px; border:1px solid transparent;
  box-shadow:var(--shadow-xs);
}
.alert.success { background:var(--success-soft); color:#2f6842; border-color:rgba(104,169,125,0.18); }
.alert.error { background:var(--danger-soft); color:#8a3f3f; border-color:rgba(217,108,108,0.18); }

/* ----- جداول ----- */
table {
  width:100%; border-collapse:separate; border-spacing:0;
  background:rgba(255,255,255,0.72); border:1px solid var(--border);
  border-radius:18px; overflow:hidden; box-shadow:var(--shadow-xs);
}
table th, table td {
  padding:13px 14px; border-bottom:1px solid rgba(212,123,140,0.10);
  text-align:right; vertical-align: middle;
}
table th {
  background:rgba(212,123,140,0.08); color:var(--text-strong); font-weight:800;
}
table tr:last-child td { border-bottom:none; }

/* وضعیت‌های مرور */
.review-done td { background-color:#edf8f0; }
.review-overdue td { background-color:#fff0f0; }
.review-today td { background-color:#fff7ea; }
.review-upcoming td { background-color: transparent; }

/* ----- موبایل: جدول‌ها به کارت تبدیل می‌شوند (بدون تداخل) ----- */
@media (max-width: 700px) {
  table, thead, tbody, th, td, tr { display:block; width:100%; }
  table { background:transparent; border:none; box-shadow:none; }
  thead tr { position:absolute; top:-9999px; right:-9999px; }
  tr {
    margin-bottom:14px;
    border:1px solid var(--border);
    border-radius:18px;
    background:rgba(255,255,255,0.82);
    box-shadow:var(--shadow-xs);
  }
  td {
    display:flex;
    flex-direction:column;
    padding:12px 14px;
    border-bottom:1px solid rgba(212,123,140,0.10);
    min-height:48px;
  }
  td:last-child { border-bottom:none; }

  /* برچسب‌ها از data-label می‌آیند */
  td::before {
    content: attr(data-label);
    font-weight:800;
    color:var(--primary-dark);
    margin-bottom:4px;
    font-size:0.85rem;
  }

  /* دکمه‌های داخل جدول */
  td form {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 6px;
  }
  td .btn { white-space:normal; width:auto; min-width:70px; }
}

/* ----- لندینگ ----- */
.landing { padding:40px 0; text-align:center; }
.hero { max-width:880px; margin:0 auto; }
.welcome-text {
  font-weight:900; font-size:clamp(2rem, 8vw, 3.35rem);
  line-height:1.12; color:var(--text-strong);
  text-shadow: 0 8px 24px rgba(212,123,140,0.18);
  margin-bottom:14px;
}
.pink-strawberry { color:#d47b8c; }
.green-study { color:#7fa487; }
.subtitle { max-width:720px; margin:0 auto 22px; font-size:1.05rem; color:rgba(92,60,69,0.9); }
.actions { display:flex; gap:14px; flex-wrap:wrap; justify-content:center; margin-top:20px; }
.features {
  display:grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr));
  gap:20px; margin-top:40px; max-width:700px; margin-left:auto; margin-right:auto;
}
.feature-card {
  background:rgba(255,248,250,0.68); border:1px solid var(--border);
  border-radius:22px; padding:24px 18px; text-align:center;
  box-shadow:var(--shadow-sm); backdrop-filter:blur(14px);
}
.feature-card:hover { transform:translateY(-2px); box-shadow:var(--shadow-md); }
.feature-card .icon { font-size:2rem; margin-bottom:10px; }
.feature-card h3 { font-size:1.05rem; color:#8f4f61; margin-bottom:6px; }
.feature-card p { font-size:0.95rem; color:rgba(92,60,69,0.88); }

/* ----- تطبیق دکمه‌های لندینگ ----- */
.actions .btn-primary { padding:12px 24px; }
.actions .btn-secondary { padding:12px 24px; }

/* ----- دسکتاپ ----- */
@media (min-width: 701px) {
  .container { padding:20px; }
  .card { padding:22px; }
  .features { grid-template-columns: repeat(3,1fr); }
}

/* ----- کاهش حرکت ----- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation:none!important; transition:none!important; }
}
/* ===== نوار ناوبری ثابت (سازگار با فایرفاکس) ===== */
.navbar-fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1000;

  /* شیشه‌ای مستقیم */
  background: rgba(255, 248, 250, 0.78);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);

  /* ارتقاء به لایه GPU برای رفع مشکل فایرفاکس */
  transform: translateZ(0);
  will-change: transform;

  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  box-sizing: border-box;
  border-bottom: 1px solid rgba(212, 123, 140, 0.1);
  border-radius: 0 0 18px 18px;
}

/* مطمئن شوید محتوای nav بالای شیشه قرار دارد */
.navbar-fixed > * {
  position: relative;
  z-index: 1;
}

/* لینک‌های داخل nav */
.navbar-fixed a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 10px 14px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--primary-dark);
  font-weight: 600;
  background: rgba(255, 255, 255, 0.3);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.navbar-fixed a:hover {
  background: rgba(212, 123, 140, 0.12);
  color: var(--primary-hover);
}

/* جبران فضای nav */
body {
  padding-top: 80px; /* اگر ارتفاع nav فرق داشت، این مقدار را تنظیم کنید */
}