:root {
    --gold-primary: #d4af37;
    --gold-light: #f3e5ab;
    --gold-dark: #aa820a;
    --gold-gradient: linear-gradient(135deg, #d4af37 0%, #f5d76e 50%, #b8860b 100%);
    --dark-bg: #0b0f19;
    --dark-surface: #111827;
    --dark-card: #161f33;
    --dark-border: rgba(212, 175, 55, 0.18);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --emmovia-accent: #10b981;
    --tunacraft-accent: #38bdf8;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 85px;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.65;
}

h1, h2, h3, h4, h5, h6, .font-heading {
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.02em;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--dark-bg);
}
::-webkit-scrollbar-thumb {
    background: #1e293b;
    border-radius: 5px;
    border: 2px solid var(--dark-bg);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--gold-primary);
}

/* Utility Classes */
.text-gold {
    color: var(--gold-primary) !important;
}

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

.bg-dark-surface {
    background-color: var(--dark-surface);
}

.bg-dark-card {
    background-color: var(--dark-card);
}

.border-gold-subtle {
    border-color: var(--dark-border) !important;
}

.badge-gold {
    background: rgba(212, 175, 55, 0.12);
    color: #f5d76e;
    border: 1px solid rgba(212, 175, 55, 0.3);
    font-weight: 600;
    letter-spacing: 0.04em;
}

.btn-gold {
    background: var(--gold-gradient);
    color: #0b0f19;
    font-weight: 700;
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.25);
}

.btn-gold:hover, .btn-gold:focus {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
    color: #000;
}

.btn-outline-gold {
    color: var(--gold-primary);
    border: 1px solid rgba(212, 175, 55, 0.5);
    background: rgba(212, 175, 55, 0.05);
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline-gold:hover, .btn-outline-gold:focus {
    background: var(--gold-gradient);
    color: #0b0f19;
    border-color: transparent;
    transform: translateY(-2px);
}

/* Navbar */
.navbar-corporate {
    background: rgba(11, 15, 25, 0.82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    transition: all 0.3s ease;
    padding: 0.9rem 0;
}

.navbar-corporate.scrolled {
    background: rgba(11, 15, 25, 0.96);
    border-bottom-color: rgba(212, 175, 55, 0.25);
    padding: 0.65rem 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.brand-monogram {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--gold-gradient);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #0b0f19;
    font-weight: 800;
    font-size: 1rem;
    font-family: 'Outfit', sans-serif;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.navbar-corporate .nav-link {
    color: #94a3b8;
    font-weight: 500;
    font-size: 0.82rem;
    letter-spacing: 0.01em;
    padding: 0.4rem 0.55rem !important;
    white-space: nowrap !important;
    border-radius: 8px;
    transition: all 0.2s ease;
}

@media (min-width: 1400px) {
    .navbar-corporate .nav-link {
        font-size: 0.86rem;
        padding: 0.45rem 0.75rem !important;
    }
}

.navbar-corporate .btn-sm {
    font-size: 0.78rem;
}

.navbar-corporate .nav-link:hover {
    color: #f8fafc;
    background: rgba(255, 255, 255, 0.05);
}

.navbar-corporate .nav-link.active {
    color: #f5d76e !important;
    font-weight: 600;
    background: rgba(212, 175, 55, 0.12);
}

/* Compact Modern Glass & Gold Contact Button */
.nav-contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.42rem;
    padding: 0.34rem 0.85rem;
    font-size: 0.78rem;
    font-weight: 600;
    border-radius: 50px;
    background: rgba(212, 175, 55, 0.12);
    color: #f5d76e !important;
    border: 1px solid rgba(212, 175, 55, 0.45);
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.25s ease;
    backdrop-filter: blur(8px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.nav-contact-btn:hover {
    background: var(--gold-gradient);
    color: #0b0f19 !important;
    border-color: transparent;
    box-shadow: 0 4px 18px rgba(212, 175, 55, 0.35);
    transform: translateY(-1px);
}

.nav-contact-btn i {
    font-size: 0.82rem;
}

/* Hero Section */
.hero-section {
    position: relative;
    padding: 9rem 0 6rem;
    overflow: hidden;
    background:
        radial-gradient(circle at 15% 20%, rgba(212, 175, 55, 0.14) 0%, transparent 45%),
        radial-gradient(circle at 85% 30%, rgba(56, 189, 248, 0.10) 0%, transparent 45%),
        radial-gradient(circle at 50% 90%, rgba(16, 185, 129, 0.08) 0%, transparent 45%),
        var(--dark-bg);
}

.hero-grid-bg {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
    pointer-events: none;
}

.hero-title {
    font-size: clamp(1.75rem, 3.2vw, 2.75rem);
    font-weight: 800;
    line-height: 1.2;
}

.hero-section .lead {
    font-size: 1rem;
}

.hero-section .badge-gold {
    font-size: 0.72rem !important;
}

.hero-showcase-card h3 {
    font-size: 1.05rem;
}

.hero-showcase-card p.small {
    font-size: 0.82rem;
}

.hero-subtitle-legal {
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #cbd5e1;
    background: rgba(255, 255, 255, 0.04);
    border-left: 3px solid var(--gold-primary);
    padding: 0.6rem 1rem;
    border-radius: 0 8px 8px 0;
}

/* Project Spotlight Mini Cards in Hero */
.hero-showcase-card {
    background: rgba(22, 31, 51, 0.78);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 20px;
    padding: 1.6rem;
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}

.hero-showcase-card:hover {
    transform: translateY(-5px);
    border-color: rgba(212, 175, 55, 0.4);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
}

.hero-showcase-card.emmovia-card {
    border-top: 3px solid var(--emmovia-accent);
}

.hero-showcase-card.tunacraft-card {
    border-top: 3px solid var(--tunacraft-accent);
}

/* Status Pulse Indicator */
.status-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.live {
    background-color: #10b981;
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
    animation: pulse-green 2s infinite;
}

.status-dot.dev {
    background-color: #38bdf8;
    box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.2);
    animation: pulse-blue 2s infinite;
}

@keyframes pulse-green {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6); }
    70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@keyframes pulse-blue {
    0% { box-shadow: 0 0 0 0 rgba(56, 189, 248, 0.6); }
    70% { box-shadow: 0 0 0 8px rgba(56, 189, 248, 0); }
    100% { box-shadow: 0 0 0 0 rgba(56, 189, 248, 0); }
}

/* Section Headers */
.section-padding {
    padding: 5.5rem 0;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(212, 175, 55, 0.1);
    color: #f5d76e;
    border: 1px solid rgba(212, 175, 55, 0.25);
    margin-bottom: 1rem;
}

/* Flagship Project Cards */
.project-flagship-card {
    background: linear-gradient(180deg, rgba(22, 31, 51, 0.95) 0%, rgba(15, 23, 42, 0.98) 100%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    overflow: hidden;
    height: 100%;
    transition: all 0.35s ease;
    display: flex;
    flex-direction: column;
}

.project-flagship-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5);
}

.project-flagship-card.emmovia-theme:hover {
    border-color: rgba(16, 185, 129, 0.5);
}

.project-flagship-card.tunacraft-theme:hover {
    border-color: rgba(56, 189, 248, 0.5);
}

.project-visual-banner {
    height: 230px;
    position: relative;
    overflow: hidden;
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.emmovia-banner {
    background:
        radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.35), transparent 55%),
        linear-gradient(135deg, #064e3b 0%, #0f172a 100%);
    border-bottom: 1px solid rgba(16, 185, 129, 0.25);
}

.tunacraft-banner {
    background:
        radial-gradient(circle at 80% 20%, rgba(56, 189, 248, 0.35), transparent 55%),
        linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%);
    border-bottom: 1px solid rgba(56, 189, 248, 0.25);
}

/* Decorative Voxel / Building Art inside project banners */
.banner-watermark-icon {
    position: absolute;
    right: -15px;
    bottom: -25px;
    font-size: 9.5rem;
    opacity: 0.12;
    transform: rotate(-12deg);
    pointer-events: none;
}

.browser-url-pill {
    background: rgba(11, 15, 25, 0.75);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 50px;
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
    color: #e2e8f0;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    width: fit-content;
}

/* Sector Cards */
.sector-card {
    background: var(--dark-card);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 18px;
    padding: 2rem;
    height: 100%;
    transition: all 0.3s ease;
}

.sector-card:hover {
    border-color: rgba(212, 175, 55, 0.4);
    transform: translateY(-5px);
    background: linear-gradient(180deg, rgba(22, 31, 51, 1) 0%, rgba(28, 39, 64, 1) 100%);
}

.sector-icon-box {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: 1.25rem;
    background: rgba(212, 175, 55, 0.12);
    color: var(--gold-primary);
    border: 1px solid rgba(212, 175, 55, 0.25);
}

/* Official Corporate Registry (Kurumsal Künye) */
.registry-wrapper {
    background: linear-gradient(145deg, #131c31 0%, #0d1322 100%);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    position: relative;
}

.registry-item {
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 14px;
    padding: 1.1rem 1.25rem;
    height: 100%;
    transition: all 0.25s ease;
}

.registry-item:hover {
    border-color: rgba(212, 175, 55, 0.35);
    background: rgba(255, 255, 255, 0.04);
}

.registry-label {
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.registry-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    word-break: break-word;
}

.registry-value.mono {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    letter-spacing: 0.03em;
    color: #f5d76e;
}

.copy-btn {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #cbd5e1;
    border-radius: 6px;
    padding: 0.15rem 0.5rem;
    font-size: 0.72rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.copy-btn:hover {
    background: var(--gold-primary);
    color: #0b0f19;
    border-color: var(--gold-primary);
}

.copy-btn.copied {
    background: #10b981;
    color: #fff;
    border-color: #10b981;
}

/* Contact & Address Cards */
.address-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 1.5rem;
}

.form-control-dark {
    background-color: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #f8fafc;
    border-radius: 12px;
    padding: 0.8rem 1rem;
}

.form-control-dark:focus {
    background-color: rgba(15, 23, 42, 0.95);
    border-color: var(--gold-primary);
    color: #fff;
    box-shadow: 0 0 0 0.25rem rgba(212, 175, 55, 0.15);
}

.form-control-dark::placeholder {
    color: #64748b;
}

/* 3-Stage Engineering Pipeline & Architecture Showcase */
.pipeline-step-card {
    background: linear-gradient(165deg, rgba(22, 31, 51, 0.95) 0%, rgba(15, 23, 42, 0.98) 100%);
    border: 1px solid rgba(212, 175, 55, 0.22);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
}

.pipeline-step-card:hover {
    transform: translateY(-5px);
    border-color: rgba(212, 175, 55, 0.55);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
}

.pipeline-step-badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 0.35rem 0.85rem;
    border-radius: 50px;
    background: var(--gold-gradient);
    color: #0b0f19;
}

.arch-showcase-box {
    box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.6);
}

/* Footer */
.footer-corporate {
    background-color: #070a11;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    padding: 4.5rem 0 2rem;
}

.footer-corporate ul li a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-corporate ul li a:hover {
    color: var(--gold-primary, #f5d76e);
}

/* Language Switcher Button Group */
.lang-switch-group {
    background: rgba(15, 23, 42, 0.85);
    border: 1px solid rgba(212, 175, 55, 0.35);
    border-radius: 50px;
    padding: 2px;
    display: inline-flex;
    align-items: center;
}

.lang-switch-group .lang-btn {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.22rem 0.52rem;
    border-radius: 50px;
    color: #94a3b8;
    text-decoration: none;
    transition: all 0.2s ease;
    border: none;
    line-height: 1;
    display: inline-block;
}

.lang-switch-group .lang-btn:hover {
    color: #f8fafc;
}

.lang-switch-group .lang-btn.active {
    background: var(--gold-gradient);
    color: #0b0f19;
    box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
}

/* Print optimization for Kurumsal Künye */
@media print {
    body {
        background: #fff !important;
        color: #000 !important;
    }
    .navbar, .hero-section, #hakkimizda, #projeler, #faaliyetler, #iletisim, footer, .no-print {
        display: none !important;
    }
    #kurumsal-kunye {
        padding: 0 !important;
    }
    .registry-wrapper {
        background: #fff !important;
        border: 2px solid #000 !important;
        box-shadow: none !important;
        color: #000 !important;
    }
    .registry-item {
        border: 1px solid #ccc !important;
        background: #fff !important;
    }
    .registry-value, .registry-value.mono, .text-gold, h2, h3, h4 {
        color: #000 !important;
        -webkit-text-fill-color: #000 !important;
    }
}