/* ============================================================
   American University — Design System
   هوية بصرية: "الختم الأكاديمي الرسمي" — كحلي + ذهبي + ورقي
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Amiri:wght@400;700&family=Cairo:wght@400;500;600;700;800&display=swap');

:root {
    /* ---- الألوان ---- */
    --navy-950: #0D1730;
    --navy-900: #14213D;
    --navy-800: #1C2C4E;
    --navy-700: #2A3D66;
    --gold-600: #A9821B;
    --gold-500: #C9A227;
    --gold-400: #E4C766;
    --paper-50: #FAF7F0;
    --paper-100: #F3EEE1;
    --hairline: #D9D2BE;
    --ink-900: #1E2230;
    --ink-600: #52586B;
    --teal-600: #2F6F62;
    --danger: #B3261E;

    /* ---- الطباعة ---- */
    --font-display: 'Amiri', serif;
    --font-body: 'Cairo', sans-serif;

    /* ---- القياسات ---- */
    --radius-sm: 4px;
    --radius-md: 8px;
    --container: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-body);
    color: var(--ink-900);
    background: var(--paper-50);
    line-height: 1.75;
    font-size: 16px;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.35;
    margin: 0 0 .5em;
}

p { margin: 0 0 1em; color: var(--ink-600); }

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

img { max-width: 100%; display: block; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.eyebrow {
    font-family: var(--font-body);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--gold-600);
    display: inline-block;
    margin-bottom: 10px;
}

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

/* ============================================================
   Topbar + Header
   ============================================================ */
.topbar {
    background: var(--navy-950);
    color: var(--paper-100);
    font-size: .82rem;
}

.topbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 8px;
    padding-bottom: 8px;
    flex-wrap: wrap;
    gap: 8px;
}

.topbar-info { display: flex; gap: 20px; flex-wrap: wrap; }
.topbar-info span { opacity: .85; }
.topbar-info a { color: var(--gold-400); }

.topbar-social a {
    display: inline-block;
    margin-inline-start: 10px;
    color: var(--paper-100);
    opacity: .8;
}
.topbar-social a:hover { opacity: 1; color: var(--gold-400); }

.site-header {
    background: var(--navy-900);
    border-bottom: 2px solid var(--gold-500);
    position: sticky;
    top: 0;
    z-index: 50;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    padding-bottom: 14px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--paper-50);
}

.brand-seal {
    width: 46px;
    height: 46px;
    flex-shrink: 0;
    border-radius: 50%;
    object-fit: cover;
    background: var(--paper-50);
    border: 1px solid rgba(228,199,102,.5);
}

.brand-name {
    font-family: var(--font-display);
    font-size: 1.15rem;
    line-height: 1.3;
}
.brand-name small {
    display: block;
    font-family: var(--font-body);
    font-size: .68rem;
    color: var(--gold-400);
    letter-spacing: .08em;
    text-transform: uppercase;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 4px;
    margin: 0;
    padding: 0;
}

.main-nav > ul > li { position: relative; }

.main-nav a {
    display: block;
    padding: 10px 14px;
    color: var(--paper-100);
    font-size: .92rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

.main-nav > ul > li > a:hover,
.main-nav > ul > li.has-children:hover > a {
    background: rgba(201, 162, 39, 0.15);
    color: var(--gold-400);
}

.main-nav .submenu {
    position: absolute;
    inset-inline-start: 0;
    top: 100%;
    background: var(--navy-800);
    min-width: 240px;
    border: 1px solid var(--navy-700);
    border-top: 2px solid var(--gold-500);
    display: none;
    padding: 6px;
    box-shadow: 0 12px 24px rgba(0,0,0,.25);
}

.main-nav li.has-children:hover .submenu { display: block; }

.main-nav .submenu a {
    font-weight: 500;
    padding: 9px 12px;
}
.main-nav .submenu a:hover { background: rgba(201,162,39,.12); color: var(--gold-400); }

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--navy-700);
    color: var(--paper-50);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    font-size: 1.1rem;
}

/* ============================================================
   Hero — الختم كعنصر مركزي
   ============================================================ */
.hero {
    position: relative;
    background: radial-gradient(circle at 80% 20%, var(--navy-800), var(--navy-950) 70%);
    color: var(--paper-50);
    overflow: hidden;
    padding: 90px 0 70px;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 40px;
    align-items: center;
}

.hero-reg {
    font-size: .78rem;
    color: var(--gold-400);
    letter-spacing: .1em;
    border: 1px solid rgba(228,199,102,.4);
    display: inline-block;
    padding: 5px 12px;
    border-radius: 999px;
    margin-bottom: 18px;
}

.hero h1 {
    font-size: clamp(1.9rem, 3.4vw, 2.9rem);
    color: var(--paper-50);
}

.hero p.lead {
    color: rgba(250,247,240,.8);
    font-size: 1.05rem;
    max-width: 46ch;
}

.hero-actions { display: flex; gap: 14px; margin-top: 26px; flex-wrap: wrap; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 26px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: .92rem;
    border: 1px solid transparent;
    cursor: pointer;
}

.btn-gold {
    background: var(--gold-500);
    color: var(--navy-950);
}
.btn-gold:hover { background: var(--gold-400); }

.btn-outline {
    border-color: rgba(250,247,240,.4);
    color: var(--paper-50);
}
.btn-outline:hover { border-color: var(--gold-400); color: var(--gold-400); }

.seal-wrap {
    display: flex;
    justify-content: center;
    animation: seal-stamp 900ms cubic-bezier(.2,.9,.3,1.2) both;
}

@keyframes seal-stamp {
    from { opacity: 0; transform: scale(1.4) rotate(-8deg); }
    to   { opacity: 1; transform: scale(1) rotate(0deg); }
}

.seal {
    width: min(280px, 80%);
    height: auto;
    border-radius: 50%;
    box-shadow: 0 25px 60px rgba(0,0,0,.35);
}

/* ============================================================
   قسم "من نحن"
   ============================================================ */
.section { padding: 72px 0; }
.section-paper { background: var(--paper-100); }

.section-head {
    max-width: 640px;
    margin: 0 auto 40px;
    text-align: center;
}
.section-head h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-grid img {
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
}

.reg-line {
    display: flex;
    gap: 10px;
    align-items: baseline;
    font-family: var(--font-body);
    font-weight: 700;
    color: var(--navy-800);
    border-inline-start: 3px solid var(--gold-500);
    padding-inline-start: 12px;
    margin: 18px 0;
}
.reg-line span { color: var(--ink-600); font-weight: 400; }

/* ============================================================
   شريط الإحصائيات — بأسلوب "سجل رسمي"
   ============================================================ */
.stats-band {
    background: var(--navy-950);
    color: var(--paper-50);
}

.stats-row {
    display: flex;
    flex-wrap: wrap;
}

.stat-item {
    flex: 1 1 180px;
    text-align: center;
    padding: 34px 16px;
    border-inline-end: 1px solid rgba(228,199,102,.2);
}
.stat-item:last-child { border-inline-end: none; }

.stat-value {
    display: block;
    font-family: var(--font-display);
    font-size: 2.3rem;
    color: var(--gold-400);
}

.stat-label {
    display: block;
    margin-top: 6px;
    font-size: .85rem;
    color: rgba(250,247,240,.75);
}

/* ============================================================
   بطاقات عامة (خريجون / هيئة تدريسية / جهات معتمدة)
   ============================================================ */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 24px;
}

.person-card {
    background: var(--paper-50);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    overflow: hidden;
    text-align: center;
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.person-card:hover {
    transform: translateY(-4px);
    border-color: var(--gold-500);
    box-shadow: 0 14px 28px rgba(20,33,61,.12);
}

.person-card .photo {
    aspect-ratio: 4 / 4.2;
    overflow: hidden;
    background: var(--paper-100);
}
.person-card .photo img { width: 100%; height: 100%; object-fit: cover; }

.person-card .info { padding: 16px 14px 20px; }
.person-card .info h3 { font-size: 1rem; margin-bottom: 4px; }
.person-card .info .role {
    font-size: .82rem;
    color: var(--gold-600);
    font-weight: 600;
}
.person-card .info .country {
    font-size: .78rem;
    color: var(--ink-600);
    margin-top: 4px;
}

.institution-card {
    background: var(--paper-50);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.institution-card img {
    width: 64px; height: 64px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 1px solid var(--hairline);
    flex-shrink: 0;
}
.institution-card h3 { font-size: .98rem; margin-bottom: 6px; }
.institution-card p { font-size: .85rem; margin: 0; }

/* ============================================================
   معرض الصور
   ============================================================ */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
}
.gallery-grid img {
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

/* ============================================================
   نداء ختامي (Verify Certificate CTA)
   ============================================================ */
.cta-band {
    background: linear-gradient(120deg, var(--navy-900), var(--navy-800));
    color: var(--paper-50);
    text-align: center;
    padding: 60px 24px;
}
.cta-band h2 { color: var(--paper-50); }
.cta-band p { color: rgba(250,247,240,.75); max-width: 50ch; margin-inline: auto; margin-bottom: 1em; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
    background: var(--navy-950);
    color: rgba(250,247,240,.8);
    padding-top: 56px;
    font-size: .9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr 1.2fr;
    gap: 32px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(228,199,102,.15);
}

.footer-grid h4 {
    color: var(--gold-400);
    font-size: .95rem;
    font-family: var(--font-body);
    margin-bottom: 14px;
}

.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 8px; }
.footer-grid a:hover { color: var(--gold-400); }

.footer-photos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.footer-photos img { border-radius: var(--radius-sm); aspect-ratio: 1; object-fit: cover; }

.footer-bottom {
    text-align: center;
    padding: 18px 0;
    font-size: .8rem;
    color: rgba(250,247,240,.55);
}

/* ============================================================
   لوحة التحكم — تسجيل الدخول / 2FA
   ============================================================ */
.login-box,
.setup-2fa-box {
    max-width: 380px;
    margin: 80px auto;
    padding: 32px;
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    background: var(--paper-100);
    font-family: var(--font-body);
}
.login-box h1, .setup-2fa-box h1 { font-family: var(--font-body); font-size: 1.3rem; text-align: center; }
.login-box form, .setup-2fa-box form { display: flex; flex-direction: column; gap: 10px; }
.login-box input, .setup-2fa-box input {
    padding: 10px 12px; border: 1px solid var(--hairline); border-radius: var(--radius-sm); font-size: 1rem; font-family: var(--font-body);
}
.login-box button, .setup-2fa-box button {
    margin-top: 10px; padding: 11px; border: none; border-radius: var(--radius-sm);
    background: var(--navy-900); color: #fff; font-size: 1rem; cursor: pointer; font-family: var(--font-body); font-weight: 700;
}
.login-box button:hover, .setup-2fa-box button:hover { background: var(--navy-800); }
.error { color: var(--danger); font-size: .9rem; }
.alert-warning {
    background: #FFF7E0; border: 1px solid var(--gold-500); color: var(--gold-600);
    padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 20px; font-size: .9rem;
}
#qrcode { display: flex; justify-content: center; margin: 20px 0; }

/* ============================================================
   استجابة الشاشات الصغيرة
   ============================================================ */
@media (max-width: 900px) {
    .hero .container { grid-template-columns: 1fr; text-align: center; }
    .hero-actions { justify-content: center; }
    .about-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .nav-toggle { display: inline-flex; }
    .main-nav { display: none; width: 100%; }
    .main-nav.open { display: block; }
    .main-nav ul { flex-direction: column; }
    .main-nav .submenu { position: static; display: block; border: none; box-shadow: none; padding-inline-start: 16px; }
    .site-header .container { flex-wrap: wrap; }
}

@media (max-width: 560px) {
    .footer-grid { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: repeat(3, 1fr); }
    .stat-item { border-inline-end: none; border-bottom: 1px solid rgba(228,199,102,.15); }
}