/* =========================================================
   HowToCode3 — Global Stylesheet
   ========================================================= */

:root {
    --bg:          #ffffff;
    --bg-alt:      #fafafa;
    --bg-dark:     #0a0a0a;
    --bg-dark-2:   #111113;

    --text:           #0a0a0a;
    --text-muted:     #6b7280;
    --text-subtle:    #9ca3af;
    --text-on-dark:   rgba(255, 255, 255, 0.65);
    --text-on-dark-2: rgba(255, 255, 255, 0.92);

    --border:         rgba(10, 10, 10, 0.08);
    --border-strong:  rgba(10, 10, 10, 0.15);
    --border-on-dark: rgba(255, 255, 255, 0.10);

    --accent:      #8b5cf6;
    --accent-2:    #ec4899;
    --accent-3:    #06b6d4;
    --accent-soft: rgba(139, 92, 246, 0.12);

    --gradient:    linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    --gradient-2:  linear-gradient(135deg, #8b5cf6, #ec4899);

    --container-width: 1200px;
    --section-padding: 120px 0;
    --radius:    10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-sm: 0 1px 2px rgba(10, 10, 10, 0.04);
    --shadow:    0 4px 20px rgba(10, 10, 10, 0.05);
    --shadow-lg: 0 16px 48px rgba(10, 10, 10, 0.10);

    --font-sans: 'Inter', 'Cairo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-ar:   'Cairo', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --ease:     cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--text);
    background-color: var(--bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: "ss01", "cv11";
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav-wrapper {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: transparent;
    border-bottom: 1px solid transparent;
    transition: background 0.5s var(--ease), border-color 0.5s var(--ease), backdrop-filter 0.5s var(--ease);
}

/* === خلفية بيضاء عند السكرول (لكل الصفحات) === */
.nav-wrapper.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom-color: var(--border);
}

/* === النص أبيض افتراضياً قبل السكرول (لكل الصفحات) === */
.nav-wrapper .logo-text,
.nav-wrapper.transparent .logo-text,
.nav-wrapper.transparent .nav-link,
.nav-wrapper.transparent .mobile-menu-btn {
    color: var(--text-on-dark-2);
}

/* === عند السكرول: النص يتحول لداكن على كل الصفحات === */
.nav-wrapper.scrolled .logo-text,
.nav-wrapper.transparent.scrolled .logo-text,
.nav-wrapper.transparent.scrolled .nav-link,
.nav-wrapper.transparent.scrolled .mobile-menu-btn {
    color: var(--text);
}

/* === روابط الصفحات غير الرئيسية (تظهر داكنة دائماً) === */
.nav-wrapper:not(.transparent) .nav-link  { color: var(--text-muted); }
.nav-wrapper:not(.transparent) .nav-link:hover { color: var(--text); }
.nav-wrapper:not(.transparent) .nav-link.active { color: var(--text); }
.nav-wrapper:not(.transparent) .mobile-menu-btn { color: var(--text); }

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 32px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-text {
    font-family: var(--font-ar);
    font-size: 18px;
    font-weight: 700;
    color: var(--text-on-dark-2);
    letter-spacing: -0.01em;
    transition: color 0.3s var(--ease);
}
.nav-wrapper.scrolled .logo-text { color: var(--text); }

.logo-link {
    text-decoration: none;
    display: inline-block;
    transition: opacity 0.2s var(--ease);
}
.logo-link:hover { opacity: 0.7; }

.nav-links { display: flex; gap: 32px; list-style: none; }

.nav-link {
    position: relative;
    color: var(--text-on-dark);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 6px 0;
    transition: color 0.3s var(--ease);
}
.nav-wrapper.scrolled .nav-link { color: var(--text-muted); }
.nav-link:hover { color: var(--text-on-dark-2); }
.nav-wrapper.scrolled .nav-link:hover { color: var(--text); }
.nav-link.active { color: var(--text-on-dark-2); }
.nav-wrapper.scrolled .nav-link.active { color: var(--text); }

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--text-on-dark-2);
    cursor: pointer;
    transition: color 0.3s var(--ease);
    padding: 8px;
    border-radius: 8px;
}
.nav-wrapper.scrolled .mobile-menu-btn { color: var(--text); }

/* Mobile menu panel — hidden on desktop, shown on mobile */
.mobile-menu {
    display: none;
}

/* Right group on project pages — base styles (works on all devices) */
.nav-right-group {
    display: flex;
    align-items: center;
    gap: 12px;
}
.nav-right-group .back-btn {
    padding: 8px 14px !important;
    font-size: 13px !important;
}

/* === زر العودة عند الـ scroll (خلفية فاتحة) === */
/* زر البدء: خلفية فاتحة دائماً على الصفحات غير الشفافة (لون نص داكن) */
.nav-wrapper:not(.transparent) .cta-button.secondary.back-btn {
    color: var(--text);
    background: var(--bg-alt);
    border-color: var(--border);
}

.nav-wrapper:not(.transparent) .cta-button.secondary.back-btn:hover {
    background: var(--bg);
    border-color: var(--border-strong);
}

/* ============================================================
   HERO
   ============================================================ */
.hero-section {
    background: var(--bg-dark);
    color: white;
    padding: 200px 0 140px;
    text-align: center;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.hero-section::before {
    content: '';
    position: absolute;
    inset: -10%;
    background:
        radial-gradient(45% 40% at 22% 30%, rgba(99, 102, 241, 0.55) 0%, transparent 65%),
        radial-gradient(40% 35% at 78% 18%, rgba(168, 85, 247, 0.50) 0%, transparent 65%),
        radial-gradient(45% 40% at 50% 85%, rgba(236, 72, 153, 0.45) 0%, transparent 65%),
        radial-gradient(35% 35% at 88% 80%, rgba(6, 182, 212, 0.35) 0%, transparent 65%);
    z-index: -1;
    animation: heroMesh 24s ease-in-out infinite alternate;
}

@keyframes heroMesh {
    0%   { transform: translate(0, 0) scale(1) rotate(0deg); }
    50%  { transform: translate(-1.5%, -1%) scale(1.04) rotate(0.4deg); }
    100% { transform: translate(-2.5%, -2%) scale(1.08) rotate(0.8deg); }
}

.hero-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 100% 60% at 50% 100%, var(--bg-dark) 30%, transparent 100%);
    z-index: -1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 14px;
    margin-bottom: 32px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-on-dark-2);
    backdrop-filter: blur(8px);
}

.hero-tag-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #22d3ee;
    box-shadow: 0 0 10px #22d3ee;
}

.hero-title {
    font-family: var(--font-ar);
    font-size: clamp(48px, 7.5vw, 96px);
    font-weight: 800;
    line-height: 0.98;
    letter-spacing: -0.04em;
    margin-bottom: 28px;
    color: white;
}

.hero-title .gradient-text {
    background: var(--gradient-2);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: clamp(17px, 1.6vw, 21px);
    color: var(--text-on-dark);
    margin: 0 auto 48px;
    max-width: 600px;
    line-height: 1.6;
}

/* ============================================================
   SECTION HEADERS + CTA BUTTONS
   ============================================================ */
.section-header {
    text-align: center;
    margin-bottom: 64px;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 14px;
    background: var(--accent-soft);
    border: 1px solid rgba(139, 92, 246, 0.18);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.02em;
    margin-bottom: 20px;
    font-family: var(--font-sans);
    font-feature-settings: "tnum";
}

.section-tag-number { color: var(--accent-2); font-variant-numeric: tabular-nums; }

.section-header h2 {
    font-family: var(--font-ar);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: 18px;
}

.section-subtitle {
    font-size: 17px;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.65;
}

.cta-group { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 22px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
                background 0.25s var(--ease), color 0.25s var(--ease),
                border-color 0.25s var(--ease);
    cursor: pointer;
    letter-spacing: -0.005em;
}

.cta-button.primary {
    background: white;
    color: var(--text);
    box-shadow: 0 4px 16px rgba(255, 255, 255, 0.15);
}
.cta-button.primary:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(255, 255, 255, 0.25); }

.cta-button.secondary {
    color: var(--text-on-dark-2);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(8px);
}
.cta-button.secondary:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.2); }

.cta-button:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.45); }

/* ============================================================
   SERVICES
   ============================================================ */
.services-section { padding: var(--section-padding); background: var(--bg); }

.services-grid {
    max-width: var(--container-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    padding: 0 32px;
}

.service-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.4s var(--ease);
    border-radius: inherit;
    pointer-events: none;
    z-index: 0;
}

.service-card > * { position: relative; z-index: 1; }

.service-card:hover { border-color: var(--border-strong); transform: translateY(-3px); box-shadow: var(--shadow); }
.service-card:hover::before { opacity: 0.04; }

.service-card.featured {
    grid-column: span 2;
    background: var(--bg-dark);
    color: white;
    border-color: var(--bg-dark);
}
.service-card.featured h3 { color: white; }
.service-card.featured p { color: var(--text-on-dark); }

.service-icon {
    font-size: 22px;
    color: var(--accent);
    margin-bottom: 24px;
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--accent-soft);
}

.service-card.featured .service-icon { color: white; background: rgba(255, 255, 255, 0.10); }

.service-card h3 {
    font-family: var(--font-ar);
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
    letter-spacing: -0.01em;
}

.service-card p {
    color: var(--text-muted);
    margin-bottom: 22px;
    line-height: 1.65;
    font-size: 15px;
}

.learn-more {
    color: var(--accent);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.25s var(--ease), color 0.25s var(--ease);
}

.service-card.featured .learn-more { color: white; }
.learn-more:hover { gap: 10px; }

/* ============================================================
   WHY US
   ============================================================ */
.why-us-section { padding: var(--section-padding); background: var(--bg-alt); }

.features-grid {
    max-width: var(--container-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    padding: 0 32px;
}

.feature-card {
    padding: 36px 32px;
    border-radius: var(--radius-lg);
    background: var(--bg);
    border: 1px solid var(--border);
    transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}

.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--border-strong); }

.feature-icon {
    font-size: 20px;
    color: var(--accent);
    margin-bottom: 20px;
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--accent-soft);
}

.feature-card h3 {
    font-family: var(--font-ar);
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text);
}

.feature-card p { color: var(--text-muted); font-size: 14.5px; line-height: 1.65; }

/* ============================================================
   WORK PROCESS
   ============================================================ */
.work-process-section { padding: var(--section-padding); background: var(--bg); }

.process-timeline {
    max-width: var(--container-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    padding: 0 32px;
}

.process-content {
    padding: 28px 26px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
    height: 100%;
}

.process-step:hover .process-content { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--border-strong); }

.process-number {
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 20px;
    letter-spacing: 0.02em;
    font-variant-numeric: tabular-nums;
}

.process-icon {
    font-size: 20px;
    color: var(--text);
    margin-bottom: 18px;
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
}

.process-step h3 {
    font-family: var(--font-ar);
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

.process-step p { color: var(--text-muted); font-size: 14px; line-height: 1.6; }

/* ============================================================
   PAYMENT
   ============================================================ */
.payment-section { padding: var(--section-padding); background: var(--bg-alt); }

.payment-methods {
    max-width: var(--container-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    padding: 0 32px;
}

.payment-method {
    background: var(--bg);
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border);
    transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}

.payment-method:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--border-strong); }

.payment-icon {
    font-size: 22px;
    color: var(--text);
    margin: 0 auto 18px;
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
}

.payment-method h3 {
    font-family: var(--font-ar);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text);
}

.payment-method p { color: var(--text-muted); font-size: 13.5px; line-height: 1.55; }

.payment-note {
    max-width: 640px;
    margin: 48px auto 0;
    text-align: center;
    padding: 24px 32px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.payment-note p { color: var(--text-muted); font-size: 14.5px; line-height: 1.7; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-section {
    padding: var(--section-padding);
    background: var(--bg-dark);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.contact-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(50% 60% at 30% 50%, rgba(139, 92, 246, 0.25), transparent 70%),
        radial-gradient(50% 60% at 70% 50%, rgba(236, 72, 153, 0.22), transparent 70%);
    z-index: -1;
}

.contact-section .section-tag { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.15); color: white; }
.contact-section .section-tag-number { color: var(--accent-3); }
.contact-section .section-header h2 { color: white; }
.contact-section .section-subtitle { color: var(--text-on-dark); }

.social-links { display: flex; justify-content: center; gap: 12px; margin: 48px 0 40px; flex-wrap: wrap; }

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    color: var(--text-on-dark-2);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: background 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.social-link:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.25); transform: translateY(-1px); }
.social-link i { font-size: 16px; color: var(--accent-3); }

.social-handle {
    font-size: 13px !important;
    color: var(--text-on-dark);
    direction: ltr;
    font-family: var(--font-sans);
    font-feature-settings: "tnum";
}

.contact-info {
    max-width: 720px;
    margin: 0 auto;
    padding: 32px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
}

.contact-info p { font-size: 16px; color: var(--text-on-dark); margin-bottom: 24px; line-height: 1.65; }
.contact-info .cta-button.primary { background: white; color: var(--text); padding: 13px 24px; }
.contact-info .cta-button i { font-size: 16px; color: var(--accent); }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
    padding: 56px 0 36px;
    background: var(--bg-dark);
    color: var(--text-on-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-content {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-logo { font-family: var(--font-ar); font-size: 16px; font-weight: 700; color: white; }

footer p { color: var(--text-on-dark); font-size: 13px; font-variant-numeric: tabular-nums; }

/* ============================================================
   SHOWCASE / PROJECTS
   ============================================================ */
.showcase-hero {
    background: var(--bg-dark);
    color: white;
    padding: 160px 0 80px;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.showcase-hero::before {
    content: '';
    position: absolute;
    inset: -10%;
    background:
        radial-gradient(45% 40% at 22% 30%, rgba(99, 102, 241, 0.40) 0%, transparent 65%),
        radial-gradient(40% 35% at 78% 18%, rgba(168, 85, 247, 0.35) 0%, transparent 65%),
        radial-gradient(45% 40% at 50% 85%, rgba(236, 72, 153, 0.30) 0%, transparent 65%);
    z-index: -1;
    animation: heroMesh 24s ease-in-out infinite alternate;
}

.showcase-hero-content { max-width: var(--container-width); margin: 0 auto; padding: 0 32px; }

.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-on-dark);
    text-decoration: none;
    margin-bottom: 24px;
    transition: color 0.2s var(--ease);
    font-family: var(--font-sans);
}
.breadcrumb:hover { color: white; }

.showcase-hero .section-tag { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.15); color: white; margin-bottom: 20px; }
.showcase-hero .section-tag-number { color: var(--accent-3); }

.showcase-title {
    font-family: var(--font-ar);
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    color: white;
}

.showcase-title .gradient-text {
    background: var(--gradient-2);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.showcase-subtitle {
    font-size: clamp(15px, 1.5vw, 18px);
    color: var(--text-on-dark);
    line-height: 1.65;
    max-width: 640px;
    margin-bottom: 40px;
}

.showcase-stats { display: flex; gap: 32px; flex-wrap: wrap; }
.showcase-stat { display: flex; flex-direction: column; gap: 2px; }
.showcase-stat-value {
    font-size: 28px;
    font-weight: 800;
    color: white;
    font-family: var(--font-sans);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
}
.showcase-stat-label {
    font-size: 12px;
    color: var(--text-on-dark);
    font-family: var(--font-sans);
    letter-spacing: 0.02em;
}

.showcase-projects { padding: 80px 0 100px; background: var(--bg-alt); }

/* ============================================================
   TABS (معرض المشاريع)
   ============================================================ */
.tabs-wrapper {
    background: white;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 64px;
    z-index: 100;
}

.tabs-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    gap: 8px;
}

.tab-btn {
    padding: 18px 24px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-ar);
    transition: all 0.2s var(--ease);
    margin-bottom: -1px;
}

.tab-btn:hover {
    color: var(--text);
    background: var(--bg-alt);
}

.tab-btn.active {
    color: var(--text);
}

.tab-btn-blue.active {
    border-bottom-color: #3b82f6;
    color: #3b82f6;
}

.tab-btn-cyan.active {
    border-bottom-color: #06b6d4;
    color: #06b6d4;
}

.tab-count {
    background: var(--bg-alt);
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    font-family: var(--font-sans);
}

.tab-btn.active .tab-count {
    background: currentColor;
    color: white;
}

.tab-btn-blue.active .tab-count {
    background: #3b82f6;
}

.tab-btn-cyan.active .tab-count {
    background: #06b6d4;
}

.projects-grid {
    max-width: var(--container-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    padding: 0 32px;
}

.project-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
    display: flex;
    flex-direction: column;
}

.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--border-strong); }

.project-cover {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 64px;
    position: relative;
    overflow: hidden;
}

.project-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.22), transparent 55%);
    pointer-events: none;
}

.project-cover i {
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.30));
    transition: transform 0.4s var(--ease);
}

.project-card:hover .project-cover i { transform: scale(1.08) rotate(-3deg); }

.project-live {
    position: absolute;
    top: 14px;
    left: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(8px);
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    color: white;
    font-family: var(--font-sans);
    letter-spacing: 0.02em;
    z-index: 2;
}

.project-live-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 6px #22c55e;
    animation: demoPulse 2s ease-in-out infinite;
}

@keyframes demoPulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.5; }
}

.project-body { padding: 24px 26px 28px; flex: 1; display: flex; flex-direction: column; }

.project-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.project-tags span {
    background: var(--bg-alt);
    color: var(--text-muted);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 11.5px;
    font-weight: 500;
    font-family: var(--font-sans);
    letter-spacing: 0.01em;
}

.project-title {
    font-family: var(--font-ar);
    font-size: 22px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
    margin-bottom: 10px;
}

.project-desc { color: var(--text-muted); font-size: 14.5px; line-height: 1.65; margin-bottom: 20px; flex: 1; }

.project-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-sans);
    transition: gap 0.3s var(--ease);
}

.project-card:hover .project-cta { gap: 12px; }

.showcase-cta { padding: 80px 0; background: var(--bg); text-align: center; }
.showcase-cta-content { max-width: 640px; margin: 0 auto; padding: 0 32px; }
.showcase-cta h2 {
    font-family: var(--font-ar);
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
    margin-bottom: 14px;
}
.showcase-cta p { color: var(--text-muted); font-size: 16px; margin-bottom: 28px; }

/* ============================================================
   PROJECT PAGE (individual demos)
   ============================================================ */
.project-page { max-width: 880px; margin: 0 auto; padding: 130px 32px 80px; }

/* صفحة كاملة العرض (مثل HowToCode3 Migration Tool) */
.project-page-wide {
    max-width: 100%;
    padding: 130px 32px 60px;
}

.project-page-wide .project-page-header {
    max-width: 1200px;
    margin: 0 auto 36px;
}

.project-page-wide .demo-section {
    max-width: 1400px;
    margin: 0 auto;
}

.project-page-wide .breadcrumb {
    max-width: 1400px;
    margin: 0 auto 24px;
}

@media (max-width: 1024px) {
    .project-page-wide { padding: 120px 24px 50px; }
}

@media (max-width: 768px) {
    .project-page-wide { padding: 110px 16px 40px; }
    .project-page-wide .project-page-header { margin-bottom: 24px; }
}

@media (max-width: 480px) {
    .project-page-wide { padding: 100px 12px 30px; }
}

.project-page .breadcrumb {
    color: var(--text-muted);
    margin-bottom: 24px;
}
.project-page .breadcrumb:hover { color: var(--accent); }

.project-page-header {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    margin-bottom: 36px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border);
}

.project-cover-small {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
    box-shadow: var(--shadow);
}

.project-page-title {
    font-family: var(--font-ar);
    font-size: clamp(26px, 3.5vw, 36px);
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
    margin-bottom: 8px;
    line-height: 1.15;
}

.project-page-desc { color: var(--text-muted); font-size: 15.5px; line-height: 1.65; }

.demo-section { border-top: 1px solid var(--border); padding-top: 24px; }

.demo-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 14px;
    font-family: var(--font-sans);
    letter-spacing: 0.02em;
}

.demo-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.15);
    animation: demoPulse 2s ease-in-out infinite;
}

.demo-note {
    text-align: center;
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-subtle);
}
.demo-note i { margin-left: 4px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    :root { --container-width: 100%; --section-padding: 100px 0; }
    .hero-section { padding: 170px 0 110px; }
    .hero-title { font-size: clamp(48px, 7vw, 72px); }
    .services-grid, .features-grid { grid-template-columns: repeat(2, 1fr); }
    .service-card.featured { grid-column: span 2; }
    .process-timeline { grid-template-columns: repeat(2, 1fr); }
    .payment-methods { grid-template-columns: repeat(2, 1fr); }
    .footer-content { padding: 0 24px; }
}

@media (max-width: 768px) {
    :root { --section-padding: 80px 0; }
    .nav-container { height: 60px; padding: 0 20px; }
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }

    .nav-wrapper.nav-open { background: rgba(255, 255, 255, 0.96); backdrop-filter: blur(20px); border-bottom-color: var(--border); }
    .nav-wrapper.nav-open .logo-text, .nav-wrapper.nav-open .nav-link, .nav-wrapper.nav-open .mobile-menu-btn { color: var(--text); }

    /* Always-rendered mobile menu (used on all pages including project pages) */
    .mobile-menu {
        display: block;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 16px 20px 20px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        visibility: hidden;
        transition: max-height 0.3s var(--ease), opacity 0.2s var(--ease), visibility 0.3s;
        z-index: 99;
    }
    .mobile-menu.open {
        max-height: 500px;
        opacity: 1;
        visibility: visible;
    }

    .mobile-menu-links {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 4px;
    }

    .mobile-menu-link {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 10px 12px;
        border-radius: 8px;
        color: var(--text);
        font-size: 15px;
        font-weight: 600;
        text-decoration: none;
        transition: background 0.2s var(--ease);
    }
    .mobile-menu-link:hover { background: var(--bg-alt); }
    .mobile-menu-link.active { color: var(--accent); background: var(--bg-alt); }
    .mobile-menu-link.back-link {
        margin-top: 8px;
        padding-top: 12px;
        border-top: 1px solid var(--border);
        color: var(--text-muted);
        font-size: 13px;
    }

    /* Right group on project pages (back button + hamburger) — MOBILE */
    .nav-right-group .back-btn {
        padding: 8px 12px !important;
        font-size: 12px !important;
    }
    /* Hide the text content of the back button on mobile, keep only the icon */
    .nav-right-group .back-btn {
        font-size: 0 !important;
        width: 38px !important;
        height: 38px !important;
        padding: 0 !important;
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
    }
    .nav-right-group .back-btn i {
        margin: 0 !important;
        font-size: 14px !important;
    }

    .nav-links.active {
        display: flex; flex-direction: column; position: absolute;
        top: 60px; left: 0; right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        padding: 20px; gap: 14px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
    }
    .nav-links.active .nav-link { padding: 8px 0; font-size: 15px; }

    .hero-section { padding: 140px 0 90px; }
    .hero-tag { font-size: 12px; padding: 5px 12px; margin-bottom: 24px; }
    .hero-content { padding: 0 16px; }
    .hero-subtitle { margin-bottom: 36px; }
    .cta-group { flex-direction: column; align-items: stretch; max-width: 360px; margin: 0 auto; width: 100%; }
    .cta-button { justify-content: center; padding: 14px 22px; }

    .section-header { margin-bottom: 40px; padding: 0 16px; }
    .section-header h2 { font-size: 30px; letter-spacing: -0.02em; }
    .section-subtitle { font-size: 15px; }
    .section-tag { font-size: 12px; padding: 5px 12px; margin-bottom: 16px; }

    .services-grid, .features-grid, .process-timeline {
        grid-template-columns: 1fr; padding: 0 20px; gap: 14px;
    }
    .service-card.featured { grid-column: span 1; }

    .service-content, .service-card { padding: 26px 22px; }
    .service-card h3 { font-size: 19px; }
    .service-card p { font-size: 14.5px; margin-bottom: 18px; }
    .service-icon, .feature-icon, .process-icon, .payment-icon {
        width: 40px; height: 40px; font-size: 18px; margin-bottom: 18px;
    }

    .feature-card { padding: 28px 22px; }
    .feature-card h3 { font-size: 17px; }
    .feature-card p { font-size: 14px; }
    .process-content { padding: 24px 20px; }
    .process-step h3 { font-size: 16px; }
    .process-step p { font-size: 13.5px; }

    .payment-method { padding: 28px 22px; }
    .payment-method h3 { font-size: 15px; }
    .payment-method p { font-size: 13px; }

    .social-links { flex-direction: column; gap: 10px; padding: 0 20px; }
    .social-link { width: 100%; max-width: 360px; justify-content: center; margin: 0 auto; }
    .contact-info { padding: 28px 20px; margin: 0 16px; }
    .contact-info p { font-size: 15px; }

    .payment-methods { grid-template-columns: 1fr; padding: 0 20px; }
    .payment-note { margin: 32px 20px 0; padding: 20px; }
    .payment-note p { font-size: 14px; }

    .footer-content { flex-direction: column; text-align: center; gap: 12px; }

    /* Showcase */
    .showcase-hero { padding: 130px 0 60px; }
    .showcase-stats { gap: 24px; }
    .showcase-stat-value { font-size: 22px; }
    .showcase-projects { padding: 60px 0 80px; }

    .tabs-wrapper { top: 60px; }
    .tabs-container { padding: 0 16px; gap: 4px; overflow-x: auto; }
    .tab-btn { padding: 14px 14px; font-size: 13px; white-space: nowrap; }
    .projects-grid { grid-template-columns: 1fr; gap: 14px; padding: 0 20px; }
    .project-cover { height: 160px; font-size: 48px; }
    .project-body { padding: 20px 22px 24px; }
    .project-title { font-size: 19px; }
    .showcase-cta { padding: 60px 0; }

    /* Project page */
    .project-page { padding: 110px 20px 60px; }
    .project-page-header { flex-direction: column; gap: 14px; }
    .project-cover-small { width: 64px; height: 64px; font-size: 26px; border-radius: 14px; }
}

@media (max-width: 480px) {
    :root { --section-padding: 64px 0; }
    .hero-section { padding: 120px 0 70px; }
    .hero-title { font-size: 38px; line-height: 1.05; }
    .hero-subtitle { font-size: 15px; margin-bottom: 32px; line-height: 1.55; }
    .section-header h2 { font-size: 26px; }
    .section-subtitle { font-size: 14px; }
    .cta-button { font-size: 13.5px; padding: 13px 18px; }

    .service-content, .service-card { padding: 22px 18px; }
    .feature-card { padding: 24px 18px; }
    .process-content { padding: 22px 18px; }
    .payment-method { padding: 24px 18px; }

    .contact-info { padding: 24px 18px; margin: 0 12px; }
    .payment-note { margin: 28px 12px 0; padding: 18px; }

    .showcase-title { font-size: 32px; }
    .showcase-subtitle { font-size: 14px; }
    .showcase-stats { gap: 16px; }
}

@media (max-width: 360px) {
    .hero-title { font-size: 32px; }
    .hero-tag { font-size: 11px; padding: 4px 10px; }
    .section-header h2 { font-size: 23px; }
    .cta-button { padding: 12px 16px; font-size: 13px; }
}