/* ============================================================
   ROYAL LUXURY — BLACK & GOLD — GLASS 3D
   نظام التصميم الكامل — Design System
   ============================================================ */

:root {
    /* الألوان الأساسية */
    --black-royal: #080808;
    --black-deep: #050505;
    --black-elevated: #101010;
    --charcoal: #161616;
    --gold: #D4AF37;
    --gold-light: #F1D98A;
    --gold-soft: rgba(212, 175, 55, 0.14);
    --gold-border: rgba(212, 175, 55, 0.28);
    --gold-glow: rgba(212, 175, 55, 0.35);
    --warm-white: #F6F3EC;
    --warm-grey: #A9A396;
    --warm-grey-dark: #7C766A;

    /* الخلفيات والزجاج */
    --bg-body: #080808;
    --bg-section: rgba(255, 255, 255, 0.025);
    --glass-bg: rgba(16, 16, 16, 0.55);
    --glass-border: rgba(212, 175, 55, 0.16);
    --glass-highlight: rgba(255, 255, 255, 0.06);
    --card-bg: rgba(12, 12, 12, 0.72);

    /* النصوص */
    --text-primary: #F6F3EC;
    --text-secondary: #C6C0B3;
    --text-muted: #8F897C;

    /* الظلال */
    --shadow-sm: 0 8px 30px rgba(0, 0, 0, 0.45);
    --shadow-md: 0 24px 70px rgba(0, 0, 0, 0.55);
    --shadow-gold: 0 20px 60px -25px rgba(212, 175, 55, 0.45);

    /* الأقطار والمسافات */
    --r-sm: 10px;
    --r-md: 18px;
    --r-lg: 28px;
    --r-full: 999px;
    --sp-1: 0.5rem;
    --sp-2: 1rem;
    --sp-3: 1.5rem;
    --sp-4: 2.5rem;
    --sp-5: 4rem;
    --sp-6: 6.5rem;

    /* الخطوط */
    --font-ar: 'IBM Plex Sans Arabic', 'Alexandria', system-ui, sans-serif;
    --font-en: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Alexandria', 'IBM Plex Sans Arabic', system-ui, sans-serif;

    /* الحركة */
    --ease-lux: cubic-bezier(0.22, 1, 0.36, 1);
    --dur-fast: 0.25s;
    --dur-med: 0.5s;
    --dur-slow: 0.9s;

    color-scheme: dark;
}

/* الوضع النهاري */
[data-theme="light"] {
    --bg-body: #F7F5EF;
    --bg-section: rgba(8, 8, 8, 0.03);
    --glass-bg: rgba(255, 255, 255, 0.65);
    --glass-border: rgba(176, 141, 40, 0.3);
    --glass-highlight: rgba(255, 255, 255, 0.9);
    --card-bg: rgba(255, 255, 255, 0.78);
    --gold: #A8811F;
    --gold-light: #C9A93C;
    --gold-soft: rgba(168, 129, 31, 0.12);
    --gold-border: rgba(168, 129, 31, 0.35);
    --gold-glow: rgba(168, 129, 31, 0.25);
    --text-primary: #14120C;
    --text-secondary: #46402F;
    --text-muted: #6E6754;
    --shadow-sm: 0 8px 30px rgba(30, 24, 8, 0.1);
    --shadow-md: 0 24px 70px rgba(30, 24, 8, 0.14);
    --shadow-gold: 0 20px 60px -25px rgba(168, 129, 31, 0.4);
    color-scheme: light;
}

/* ---------- الأساسيات ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    font-family: var(--font-ar);
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.85;
    min-height: 100dvh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    transition: background var(--dur-med) var(--ease-lux), color var(--dur-med) var(--ease-lux);
}

[lang="en"] {
    font-family: var(--font-en);
    line-height: 1.7;
}

[lang="en"] .hero-title,
[lang="en"] .section-title,
[lang="en"] .contact-title,
[lang="en"] .loader-text {
    font-family: var(--font-en);
    letter-spacing: -0.01em;
}

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

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

ul,
ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 3px;
    border-radius: 4px;
}

.container {
    width: min(1240px, 92vw);
    margin-inline: auto;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

::selection {
    background: rgba(212, 175, 55, 0.32);
    color: var(--text-primary);
}

/* شريط التمرير */
::-webkit-scrollbar {
    width: 9px;
}

::-webkit-scrollbar-track {
    background: var(--black-deep);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--gold-light), var(--gold));
    border-radius: var(--r-full);
}

/* ---------- الخلفية ثلاثية الأبعاد ---------- */
.three-canvas {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    z-index: -4;
    pointer-events: none;
}

.background-gradient {
    position: fixed;
    inset: 0;
    z-index: -5;
    background:
        radial-gradient(ellipse 90% 60% at 50% -10%, rgba(212, 175, 55, 0.1), transparent 60%),
        radial-gradient(ellipse 70% 50% at 85% 110%, rgba(212, 175, 55, 0.06), transparent 65%),
        var(--bg-body);
    transition: background var(--dur-med) var(--ease-lux);
}

[data-theme="light"] .background-gradient {
    background:
        radial-gradient(ellipse 90% 60% at 50% -10%, rgba(201, 169, 60, 0.16), transparent 60%),
        radial-gradient(ellipse 70% 50% at 85% 110%, rgba(201, 169, 60, 0.1), transparent 65%),
        var(--bg-body);
}

.background-overlay {
    position: fixed;
    inset: 0;
    z-index: -3;
    pointer-events: none;
    background: linear-gradient(180deg, rgba(5, 5, 5, 0.35) 0%, rgba(5, 5, 5, 0.1) 45%, rgba(5, 5, 5, 0.55) 100%);
}

[data-theme="light"] .background-overlay {
    background: linear-gradient(180deg, rgba(247, 245, 239, 0.35) 0%, rgba(247, 245, 239, 0.08) 45%, rgba(247, 245, 239, 0.5) 100%);
}

.background-glow {
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    background:
        radial-gradient(circle 500px at 15% 20%, rgba(212, 175, 55, 0.07), transparent 70%),
        radial-gradient(circle 420px at 88% 75%, rgba(241, 217, 138, 0.05), transparent 70%);
}

.glass-noise {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0.05;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
}

/* ---------- الشاشة التحميل ---------- */
.loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: grid;
    place-items: center;
    background: radial-gradient(circle at 50% 50%, #0d0d0d, #050505 70%);
    transition: opacity 0.7s var(--ease-lux), visibility 0.7s;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    position: relative;
    display: grid;
    place-items: center;
    gap: 1.6rem;
}

.loader-orb {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, var(--gold-light), var(--gold) 45%, #6b5518 100%);
    box-shadow: 0 0 70px -12px var(--gold-glow), inset 0 0 40px -18px rgba(255, 255, 255, 0.7);
    animation: orbBreath 2.4s var(--ease-lux) infinite;
}

.loader-ring,
.loader-ring-outer {
    position: absolute;
    top: 0;
    border-radius: 50%;
    border: 1.5px solid transparent;
}

.loader-ring {
    width: 150px;
    height: 150px;
    border-top-color: rgba(212, 175, 55, 0.7);
    animation: spin 2.2s linear infinite;
    transform: translate(-20px, -20px);
}

.loader-ring-outer {
    width: 190px;
    height: 190px;
    border-bottom-color: rgba(212, 175, 55, 0.3);
    animation: spin 3.5s linear infinite reverse;
    transform: translate(-40px, -40px);
}

.loader-text {
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-weight: 600;
    letter-spacing: 0.14em;
    color: var(--gold-light);
    text-shadow: 0 0 30px rgba(212, 175, 55, 0.4);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes orbBreath {
    0%, 100% { transform: scale(0.96); opacity: 0.9; }
    50% { transform: scale(1.04); opacity: 1; }
}

/* ---------- الترويسة ---------- */
.header {
    position: fixed;
    inset-inline: 0;
    top: 0;
    z-index: 1000;
    padding-block: 0.9rem;
    transition: all var(--dur-med) var(--ease-lux);
    background: transparent;
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    padding-block: 0.55rem;
    background: rgba(8, 8, 8, 0.72);
    backdrop-filter: blur(18px) saturate(1.3);
    -webkit-backdrop-filter: blur(18px) saturate(1.3);
    border-bottom-color: var(--gold-border);
    box-shadow: 0 16px 50px -30px rgba(212, 175, 55, 0.5);
}

[data-theme="light"] .header.scrolled {
    background: rgba(247, 245, 239, 0.82);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    flex-shrink: 0;
}

.logo-icon {
    display: grid;
    place-items: center;
    width: 2.7rem;
    height: 2.7rem;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, var(--gold-light), var(--gold) 60%, #8a6d1f);
    color: #0a0a0a;
    font-size: 1.15rem;
    box-shadow: 0 12px 40px -14px var(--gold-glow);
    transition: transform var(--dur-fast) var(--ease-lux);
}

.nav-logo:hover .logo-icon {
    transform: rotate(-12deg) scale(1.06);
}

/* الشعار بصورة الشخصية */
.logo-photo {
    overflow: hidden;
    border: 2px solid rgba(241, 217, 138, 0.65);
    padding: 0;
    flex-shrink: 0;
}

.logo-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 20%;
    display: block;
}

.logo-text {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.15rem;
    background: linear-gradient(120deg, var(--gold-light), var(--gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: clamp(0.6rem, 1.6vw, 1.8rem);
}

.nav-link {
    position: relative;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding-block: 0.4rem;
    transition: color var(--dur-fast) ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: 0;
    inset-inline: 0;
    width: 0;
    height: 1.5px;
    margin-inline: auto;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    transition: width var(--dur-med) var(--ease-lux);
}

.nav-link:hover,
.nav-link:focus-visible {
    color: var(--gold-light);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-inline-start: 0.5rem;
}

.control-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.5rem 0.9rem;
    border-radius: var(--r-full);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--gold-light);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    transition: all var(--dur-fast) ease;
}

.control-btn:hover {
    border-color: var(--gold);
    box-shadow: 0 0 24px -8px var(--gold-glow);
    transform: translateY(-1px);
}

.control-btn:active {
    transform: scale(0.96);
}

.theme-toggle .light-icon {
    display: none;
}

[data-theme="light"] .theme-toggle .dark-icon {
    display: none;
}

[data-theme="light"] .theme-toggle .light-icon {
    display: inline-block;
}

.lang-code {
    opacity: 0.55;
    transition: opacity var(--dur-fast);
}

[lang="ar"] .lang-code:first-of-type,
[lang="en"] .lang-code:last-of-type {
    opacity: 1;
    color: var(--gold-light);
}

.lang-sep {
    opacity: 0.4;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.6rem;
    z-index: 1002;
}

.nav-toggle .bar {
    width: 24px;
    height: 2px;
    background: var(--gold-light);
    border-radius: 2px;
    transition: all var(--dur-fast) var(--ease-lux);
}

.nav-toggle.active .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ---------- الأزرار ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.85rem 1.7rem;
    border-radius: var(--r-full);
    font-family: inherit;
    font-size: 0.98rem;
    font-weight: 600;
    line-height: 1;
    border: 1px solid transparent;
    transition: all var(--dur-fast) var(--ease-lux);
    white-space: nowrap;
}

.btn-sm {
    padding: 0.65rem 1.25rem;
    font-size: 0.88rem;
}

.btn-lg {
    padding: 1.05rem 2.3rem;
    font-size: 1.08rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 55%, #b1902b 100%);
    color: #0a0a0a;
    box-shadow: 0 18px 45px -20px var(--gold-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 26px 55px -20px var(--gold-glow), 0 0 0 1px rgba(241, 217, 138, 0.6);
}

.btn-primary:active {
    transform: translateY(-1px) scale(0.98);
}

.btn-ghost {
    background: var(--glass-bg);
    border-color: var(--glass-border);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    border-color: var(--gold);
    color: var(--gold-light);
    transform: translateY(-3px);
    box-shadow: 0 18px 45px -25px var(--gold-glow);
}

.btn-outline {
    background: transparent;
    border-color: var(--gold-border);
    color: var(--gold-light);
}

.btn-outline:hover {
    background: var(--gold-soft);
    border-color: var(--gold);
    transform: translateY(-3px);
}

.btn:active {
    transform: scale(0.97);
}

.btn-arrow {
    transition: transform var(--dur-fast) var(--ease-lux);
}

.btn:hover .btn-arrow {
    transform: translateX(-4px);
}

[lang="en"] .btn:hover .btn-arrow {
    transform: translateX(4px) rotate(180deg);
}

/* ---------- الواجهة الرئيسية Hero ---------- */
.hero {
    position: relative;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-block: 8rem 5rem;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, transparent 70%, var(--bg-body) 100%),
        radial-gradient(ellipse 60% 50% at 70% 40%, rgba(212, 175, 55, 0.07), transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    gap: clamp(2rem, 5vw, 5rem);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 1.3rem;
    border-radius: var(--r-full);
    border: 1px solid var(--gold-border);
    background: var(--gold-soft);
    color: var(--gold-light);
    font-size: 0.86rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-bottom: 1.8rem;
    animation: fadeUp 0.9s var(--ease-lux) both;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6.5vw, 5.2rem);
    font-weight: 800;
    line-height: 1.22;
    letter-spacing: -0.01em;
    margin-bottom: 1.6rem;
    animation: fadeUp 0.9s 0.12s var(--ease-lux) both;
}

.hero-title-line {
    display: block;
    color: var(--text-primary);
}

.hero-title-accent {
    display: block;
    background: linear-gradient(120deg, var(--gold-light) 0%, var(--gold) 45%, var(--gold-light) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 5s linear infinite;
}

.hero-subtitle {
    font-size: clamp(1.02rem, 1.8vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 34em;
    margin-bottom: 2.4rem;
    animation: fadeUp 0.9s 0.24s var(--ease-lux) both;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    animation: fadeUp 0.9s 0.36s var(--ease-lux) both;
}

/* العنصر ثلاثي الأبعاد */
.hero-visual {
    position: relative;
    display: grid;
    place-items: center;
    min-height: 380px;
    perspective: 1100px;
    animation: fadeUp 1.1s 0.3s var(--ease-lux) both;
}

.hero-cube {
    position: relative;
    width: 170px;
    height: 170px;
    transform-style: preserve-3d;
    animation: cubeSpin 22s linear infinite;
}

.cube-face {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    border: 1px solid var(--gold-border);
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(8, 8, 8, 0.35));
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    font-size: 2.6rem;
    color: var(--gold-light);
    box-shadow: inset 0 0 40px rgba(212, 175, 55, 0.12);
}

.face-front  { transform: translateZ(85px); }
.face-back   { transform: rotateY(180deg) translateZ(85px); }
.face-right  { transform: rotateY(90deg) translateZ(85px); }
.face-left   { transform: rotateY(-90deg) translateZ(85px); }
.face-top    { transform: rotateX(90deg) translateZ(85px); }
.face-bottom { transform: rotateX(-90deg) translateZ(85px); }

.hero-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--gold-border);
    pointer-events: none;
}

.ring-one {
    width: 320px;
    height: 320px;
    border-style: dashed;
    animation: spin 40s linear infinite;
}

.ring-two {
    width: 430px;
    height: 430px;
    border-color: rgba(212, 175, 55, 0.12);
    animation: spin 60s linear infinite reverse;
}

@keyframes cubeSpin {
    0%   { transform: rotateX(-18deg) rotateY(0deg); }
    100% { transform: rotateX(-18deg) rotateY(360deg); }
}

@keyframes shimmer {
    to { background-position: 200% center; }
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(28px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* مؤشر التمرير */
.scroll-indicator {
    position: absolute;
    bottom: 2.2rem;
    inset-inline-start: 50%;
    transform: translateX(50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-muted);
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    opacity: 0.85;
    transition: color var(--dur-fast);
}

.scroll-indicator:hover {
    color: var(--gold-light);
}

.scroll-mouse {
    width: 24px;
    height: 38px;
    border: 1.5px solid currentColor;
    border-radius: var(--r-full);
    display: grid;
    justify-items: center;
    padding-top: 6px;
}

.scroll-wheel {
    width: 3px;
    height: 7px;
    border-radius: 3px;
    background: var(--gold);
    animation: wheelMove 1.8s var(--ease-lux) infinite;
}

@keyframes wheelMove {
    0%   { transform: translateY(0); opacity: 1; }
    70%  { transform: translateY(12px); opacity: 0; }
    100% { transform: translateY(0); opacity: 0; }
}

/* ---------- العناوين المشتركة ---------- */
.section-header {
    text-align: center;
    max-width: 760px;
    margin-inline: auto;
    margin-bottom: clamp(2.6rem, 6vw, 4.5rem);
}

.section-kicker {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 0.8rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.9rem, 4.4vw, 3.2rem);
    font-weight: 800;
    line-height: 1.3;
    color: var(--text-primary);
}

.section-title-en {
    display: block;
    font-size: 0.5em;
    font-weight: 500;
    letter-spacing: 0.08em;
    color: var(--gold);
    opacity: 0.85;
    margin-top: 0.45rem;
}

.section-desc {
    margin-top: 1.1rem;
    color: var(--text-secondary);
    font-size: clamp(0.98rem, 1.6vw, 1.12rem);
}

/* ---------- بطاقات الزجاج ---------- */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-lg);
    backdrop-filter: blur(16px) saturate(1.2);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    box-shadow: var(--shadow-sm), inset 0 1px 0 var(--glass-highlight);
    transition: transform var(--dur-med) var(--ease-lux), border-color var(--dur-med), box-shadow var(--dur-med);
}

.glass-card:hover {
    border-color: rgba(212, 175, 55, 0.4);
    box-shadow: var(--shadow-md), 0 0 50px -25px var(--gold-glow), inset 0 1px 0 var(--glass-highlight);
}

/* ---------- معرض المشاريع ---------- */
.portfolio {
    position: relative;
    padding-block: var(--sp-6);
}

.portfolio::before {
    content: "";
    position: absolute;
    inset-inline: 0;
    top: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold-border), transparent);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(1.5rem, 3vw, 2.6rem);
}

.portfolio-card {
    position: relative;
    display: flex;
    flex-direction: column;
    border-radius: var(--r-lg);
    overflow: hidden;
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--shadow-sm);
    transition: transform var(--dur-med) var(--ease-lux), box-shadow var(--dur-med), border-color var(--dur-med);
    transform-style: preserve-3d;
}

.portfolio-card.card-large {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
}

.portfolio-card:hover {
    transform: translateY(-8px);
    border-color: rgba(212, 175, 55, 0.45);
    box-shadow: var(--shadow-md), 0 0 70px -30px var(--gold-glow);
}

.card-media {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--charcoal);
}

.card-large .card-media {
    aspect-ratio: auto;
    min-height: 100%;
}

.card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.75) contrast(1.05) brightness(0.82);
    transition: transform var(--dur-slow) var(--ease-lux), filter var(--dur-med);
}

.portfolio-card:hover .card-media img {
    transform: scale(1.06);
    filter: saturate(0.95) contrast(1.05) brightness(0.95);
}

.card-shine {
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 30%, rgba(241, 217, 138, 0.18) 50%, transparent 70%);
    transform: translateX(-120%);
    transition: transform 1s var(--ease-lux);
    pointer-events: none;
}

.portfolio-card:hover .card-shine {
    transform: translateX(120%);
}

.card-index {
    position: absolute;
    top: 1rem;
    inset-inline-start: 1.2rem;
    font-family: var(--font-en);
    font-size: 2.6rem;
    font-weight: 800;
    color: transparent;
    -webkit-text-stroke: 1px rgba(241, 217, 138, 0.55);
    opacity: 0.9;
    line-height: 1;
    pointer-events: none;
}

.card-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 45%, rgba(5, 5, 5, 0.75) 100%);
    pointer-events: none;
}

.card-body {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: clamp(1.4rem, 3vw, 2.2rem);
}

.card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.card-category {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--gold);
}

.card-year {
    font-family: var(--font-en);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.card-title {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 2.4vw, 1.7rem);
    font-weight: 700;
    line-height: 1.45;
    color: var(--text-primary);
}

.card-desc {
    color: var(--text-secondary);
    font-size: 0.97rem;
    line-height: 1.9;
}

.card-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.2rem;
}

.tech-tag {
    font-size: 0.76rem;
    font-weight: 600;
    padding: 0.32rem 0.8rem;
    border-radius: var(--r-full);
    border: 1px solid var(--glass-border);
    background: rgba(212, 175, 55, 0.07);
    color: var(--text-secondary);
    letter-spacing: 0.03em;
}

.card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: auto;
    padding-top: 0.6rem;
}

/* ---------- نافذة تفاصيل المشروع ---------- */
.modal {
    position: fixed;
    inset: 0;
    z-index: 5000;
    display: grid;
    place-items: center;
    padding: clamp(1rem, 4vw, 3rem);
}

.modal[hidden] {
    display: none;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(3, 3, 3, 0.82);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease both;
}

.modal-panel {
    position: relative;
    width: min(880px, 100%);
    max-height: min(88dvh, 900px);
    overflow-y: auto;
    border-radius: var(--r-lg);
    background: var(--card-bg);
    border: 1px solid var(--gold-border);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
    box-shadow: var(--shadow-md), 0 0 100px -40px var(--gold-glow);
    animation: modalIn 0.45s var(--ease-lux) both;
}

.modal-close {
    position: absolute;
    top: 1rem;
    inset-inline-end: 1rem;
    z-index: 2;
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: rgba(8, 8, 8, 0.75);
    border: 1px solid var(--gold-border);
    color: var(--gold-light);
    font-size: 1.1rem;
    transition: all var(--dur-fast) ease;
}

.modal-close:hover {
    background: var(--gold);
    color: #0a0a0a;
    transform: rotate(90deg);
}

.modal-media {
    aspect-ratio: 16 / 8;
    overflow: hidden;
    background: var(--charcoal);
}

.modal-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.85) brightness(0.9);
}

.modal-body {
    padding: clamp(1.5rem, 4vw, 2.6rem);
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.modal-category {
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--gold);
}

.modal-title {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 800;
    color: var(--text-primary);
}

.modal-desc {
    color: var(--text-secondary);
    line-height: 2;
}

.modal-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.4rem;
    padding-block: 1rem;
    border-block: 1px solid var(--glass-border);
}

.meta-block h4 {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--gold-light);
    margin-bottom: 0.55rem;
}

.meta-block p,
.meta-block li {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.9;
}

.meta-block ul {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.meta-block ul li::before {
    content: "◆";
    color: var(--gold);
    font-size: 0.6rem;
    margin-inline-end: 0.5rem;
}

.modal-tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes modalIn {
    from { opacity: 0; transform: translateY(34px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ---------- من أنا ---------- */
.about {
    padding-block: var(--sp-6);
    background: linear-gradient(180deg, transparent, var(--bg-section) 20%, var(--bg-section) 80%, transparent);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: clamp(1.4rem, 3vw, 2.4rem);
    align-items: stretch;
}

.about-card {
    padding: clamp(1.6rem, 3.5vw, 2.6rem);
}

.about-avatar {
    width: 6.5rem;
    height: 6.5rem;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 1.6rem;
    color: #0a0a0a;
    background: radial-gradient(circle at 35% 30%, var(--gold-light), var(--gold) 65%, #8a6d1f);
    box-shadow: 0 16px 45px -18px var(--gold-glow);
    margin-bottom: 1.4rem;
    overflow: hidden;
    border: 3px solid rgba(241, 217, 138, 0.7);
    padding: 0;
}

.about-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 20%;
    display: block;
}

.about-identity {
    margin-bottom: 1.1rem;
}

.about-name {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 3vw, 1.9rem);
    font-weight: 800;
    background: linear-gradient(120deg, var(--gold-light), var(--gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.4;
}

.about-role {
    display: block;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    margin-top: 1.5rem;
    padding-top: 1.3rem;
    border-top: 1px solid var(--glass-border);
}

.about-highlights li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.96rem;
    color: var(--text-secondary);
}

.about-highlights i {
    color: var(--gold);
    width: 1.5rem;
    text-align: center;
    flex-shrink: 0;
}

.about-text {
    font-size: clamp(1rem, 1.8vw, 1.14rem);
    color: var(--text-secondary);
    line-height: 2.15;
}

.about-card-values {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.5rem;
}

.value-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.value-item i {
    font-size: 1.3rem;
    color: var(--gold);
    margin-top: 0.3rem;
    width: 1.6rem;
    text-align: center;
    flex-shrink: 0;
}

.value-item h4 {
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.15rem;
}

.value-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ---------- المهارات ---------- */
.skills {
    padding-block: var(--sp-6);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 1.1rem;
}

.skill-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.7rem;
    padding: 1.6rem 1rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.93rem;
    color: var(--text-secondary);
    cursor: default;
}

.skill-item i {
    font-size: 1.9rem;
    color: var(--gold);
    transition: transform var(--dur-fast) var(--ease-lux);
}

.skill-item:hover {
    transform: translateY(-6px);
}

.skill-item:hover i {
    transform: scale(1.18) rotate(-6deg);
}

/* ---------- طريقة العمل ---------- */
.process {
    padding-block: var(--sp-6);
    background: linear-gradient(180deg, transparent, var(--bg-section) 25%, var(--bg-section) 75%, transparent);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 1.2rem;
    counter-reset: step;
}

.process-step {
    position: relative;
    padding: 1.8rem 1.4rem;
    text-align: center;
    overflow: hidden;
}

.step-num {
    position: absolute;
    top: 0.7rem;
    inset-inline-end: 1rem;
    font-family: var(--font-en);
    font-size: 2.4rem;
    font-weight: 800;
    color: transparent;
    -webkit-text-stroke: 1px rgba(212, 175, 55, 0.3);
    line-height: 1;
}

.process-step i {
    font-size: 1.7rem;
    color: var(--gold);
    margin-bottom: 0.9rem;
    display: inline-block;
}

.process-step h4 {
    font-family: var(--font-display);
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.45rem;
}

.process-step p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.8;
}

.process-step::after {
    content: "";
    position: absolute;
    bottom: 0;
    inset-inline: 20%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    transform: scaleX(0);
    transition: transform var(--dur-med) var(--ease-lux);
}

.process-step:hover::after {
    transform: scaleX(1);
}

/* ---------- التواصل ---------- */
.contact {
    padding-block: var(--sp-6);
}

.contact-panel {
    position: relative;
    text-align: center;
    padding: clamp(2.6rem, 7vw, 5.5rem) clamp(1.5rem, 5vw, 4rem);
    overflow: hidden;
}

.contact-panel::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 70% 90% at 50% 0%, rgba(212, 175, 55, 0.1), transparent 65%);
    pointer-events: none;
}

.contact-title {
    position: relative;
    font-family: var(--font-display);
    font-size: clamp(1.7rem, 4.5vw, 3.1rem);
    font-weight: 800;
    line-height: 1.4;
    max-width: 17em;
    margin-inline: auto;
    margin-bottom: 1.1rem;
    background: linear-gradient(120deg, var(--text-primary) 30%, var(--gold-light) 70%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.contact-desc {
    position: relative;
    color: var(--text-secondary);
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    max-width: 34em;
    margin-inline: auto;
    margin-bottom: 2.2rem;
}

.contact-actions {
    position: relative;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.6rem;
}

.contact-note {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.87rem;
    color: var(--text-muted);
}

.contact-note i {
    color: var(--gold);
}

.contact-num {
    font-family: var(--font-en);
    font-size: 0.88em;
    font-weight: 700;
    letter-spacing: 0.06em;
    opacity: 0.9;
    padding-inline-start: 0.55rem;
    border-inline-start: 1px solid currentColor;
}

/* ---------- التذييل ---------- */
.footer {
    position: relative;
    border-top: 1px solid var(--glass-border);
    background: rgba(5, 5, 5, 0.6);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    padding-block: 3rem 2rem;
}

[data-theme="light"] .footer {
    background: rgba(247, 245, 239, 0.7);
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--glass-border);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: 480px;
}

.footer-brand p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.85;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1.4rem;
}

.footer-links a {
    font-size: 0.92rem;
    color: var(--text-secondary);
    transition: color var(--dur-fast);
}

.footer-links a:hover {
    color: var(--gold-light);
}

.footer-bottom {
    padding-top: 1.6rem;
    text-align: center;
    font-size: 0.87rem;
    color: var(--text-muted);
}

/* ---------- زر العودة للأعلى ---------- */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    inset-inline-end: 2rem;
    z-index: 900;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    color: #0a0a0a;
    font-size: 1rem;
    box-shadow: 0 16px 40px -16px var(--gold-glow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: all var(--dur-med) var(--ease-lux);
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 22px 50px -16px var(--gold-glow);
}

/* ---------- حركات الظهور ---------- */
.reveal-element {
    opacity: 0;
    transform: translateY(36px);
    transition: opacity 0.9s var(--ease-lux), transform 0.9s var(--ease-lux);
}

.reveal-element.reveal {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- التجاوب ---------- */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-badge {
        margin-inline: auto;
    }

    .hero-subtitle {
        margin-inline: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-visual {
        min-height: 300px;
        order: -1;
    }

    .portfolio-card.card-large {
        grid-template-columns: 1fr;
    }

    .card-large .card-media {
        aspect-ratio: 16 / 9;
        min-height: unset;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 860px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        inset: 0 0 0 auto;
        width: min(340px, 84vw);
        height: 100dvh;
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        gap: 0.4rem;
        padding: 6rem 2rem 2rem;
        background: rgba(8, 8, 8, 0.96);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        border-inline-start: 1px solid var(--gold-border);
        transform: translateX(105%);
        transition: transform var(--dur-med) var(--ease-lux);
        overflow-y: auto;
        z-index: 1001;
    }

    [dir="rtl"] .nav-menu {
        inset: 0 auto 0 0;
        transform: translateX(-105%);
        border-inline-start: none;
        border-inline-end: 1px solid var(--gold-border);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-link {
        font-size: 1.05rem;
        padding-block: 0.7rem;
        width: 100%;
        border-bottom: 1px solid rgba(212, 175, 55, 0.08);
    }

    .nav-controls {
        margin: 1.2rem 0 0;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .modal-meta {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .hero {
        padding-block: 6.5rem 4.5rem;
    }

    .hero-ring {
        display: none;
    }

    .hero-cube {
        width: 130px;
        height: 130px;
    }

    .face-front  { transform: translateZ(65px); }
    .face-back   { transform: rotateY(180deg) translateZ(65px); }
    .face-right  { transform: rotateY(90deg) translateZ(65px); }
    .face-left   { transform: rotateY(-90deg) translateZ(65px); }
    .face-top    { transform: rotateX(90deg) translateZ(65px); }
    .face-bottom { transform: rotateX(-90deg) translateZ(65px); }

    .card-actions {
        flex-direction: column;
    }

    .card-actions .btn {
        width: 100%;
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

    .footer-top {
        flex-direction: column;
        align-items: flex-start;
    }

    .scroll-top {
        bottom: 1.2rem;
        inset-inline-end: 1.2rem;
    }
}

/* ---------- احترام تفضيل تقليل الحركة ---------- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .reveal-element {
        opacity: 1;
        transform: none;
    }
}