/* ============================================================
   assets/css/style.css — GDNC Yazılım Ana Stil Dosyası
   Tema: Dark / Fütüristik | Bootstrap 5 üzerine kurulu
   ============================================================ */

/* ============================================================
   1. CSS DEĞİŞKENLERİ (Design Tokens)
   ============================================================ */
:root {
    /* Renkler */
    --color-bg:         #0A0F1E;
    --color-surface:    #111827;
    --color-surface2:   #1a2234;
    --color-border:     rgba(255, 255, 255, 0.08);
    --color-accent:     #00D4FF;
    --color-accent-dark:#0099BB;
    --color-accent2:    #7B2FFF;
    --color-accent2-dark:#5B1FDD;
    --color-success:    #00FF88;
    --color-warning:    #FFB800;
    --color-danger:     #FF4757;
    --color-text:       #E2E8F0;
    --color-text-muted: #64748B;
    --color-text-light: #94A3B8;

    /* Tipografi */
    --font-main:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono:        'JetBrains Mono', 'Fira Code', monospace;

    /* Boşluklar */
    --section-padding:  100px;
    --section-padding-sm: 60px;

    /* Border Radius */
    --radius-sm:    8px;
    --radius-md:    16px;
    --radius-lg:    24px;
    --radius-xl:    32px;
    --radius-full:  9999px;

    /* Geçiş */
    --transition:   all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;

    /* Gölge */
    --shadow-sm:    0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md:    0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg:    0 24px 64px rgba(0, 0, 0, 0.5);
    --shadow-accent: 0 0 30px rgba(0, 212, 255, 0.2);
    --shadow-accent2: 0 0 30px rgba(123, 47, 255, 0.2);

    /* Glassmorphism */
    --glass-bg:     rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur:   blur(16px);
}

/* ============================================================
   2. TEMEL RESET & TİPOGRAFİ
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-main);
    font-size: 1rem;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.25;
    color: var(--color-text);
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); }

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: var(--transition-fast);
}
a:hover { color: var(--color-accent-dark); }

img, video { max-width: 100%; height: auto; }

/* Seçim rengi */
::selection {
    background: var(--color-accent);
    color: var(--color-bg);
}

/* Scrollbar özelleştirme */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-surface); }
::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--color-accent), var(--color-accent2));
    border-radius: var(--radius-full);
}

/* ============================================================
   3. YARDIMCI SINIFLAR (Utilities)
   ============================================================ */
.text-accent  { color: var(--color-accent) !important; }
.text-accent2 { color: var(--color-accent2) !important; }
.text-muted   { color: var(--color-text-muted) !important; }

.bg-surface  { background-color: var(--color-surface) !important; }
.bg-surface2 { background-color: var(--color-surface2) !important; }

.gradient-text {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-padding {
    padding-top: var(--section-padding);
    padding-bottom: var(--section-padding);
}
@media (max-width: 768px) {
    .section-padding {
        padding-top: var(--section-padding-sm);
        padding-bottom: var(--section-padding-sm);
    }
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}
.glass-card:hover {
    border-color: rgba(0, 212, 255, 0.25);
    box-shadow: var(--shadow-accent);
    transform: translateY(-4px);
}

/* Section başlıkları */
.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.2);
    padding: 4px 14px;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
}

.section-title {
    font-weight: 800;
    margin-bottom: 1.25rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================================
   4. BUTONLAR
   ============================================================ */
.btn-gdnc {
    display: inline-flex;
    align-items: center;
    padding: 12px 28px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent2));
    color: #fff !important;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    text-decoration: none;
}
.btn-gdnc::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-accent2), var(--color-accent));
    opacity: 0;
    transition: var(--transition);
}
.btn-gdnc:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 212, 255, 0.35);
}
.btn-gdnc:hover::before { opacity: 1; }
.btn-gdnc span, .btn-gdnc i { position: relative; z-index: 1; }
.btn-gdnc:active { transform: translateY(0); }

.btn-gdnc-outline {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    background: transparent;
    color: var(--color-accent) !important;
    font-weight: 600;
    border: 1.5px solid var(--color-accent);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
}
.btn-gdnc-outline:hover {
    background: var(--color-accent);
    color: var(--color-bg) !important;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

/* ============================================================
   5. NAVBAR
   ============================================================ */
.gdnc-navbar {
    background: rgba(10, 15, 30, 0.8) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 0;
    transition: var(--transition);
}
.gdnc-navbar.scrolled {
    padding: 10px 0;
    background: rgba(10, 15, 30, 0.95) !important;
    box-shadow: var(--shadow-md);
}
.gdnc-navbar .nav-link {
    color: var(--color-text-light) !important;
    font-weight: 500;
    padding: 8px 14px !important;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    position: relative;
}
.gdnc-navbar .nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    border-radius: var(--radius-full);
    transition: var(--transition);
    transform: translateX(-50%);
}
.gdnc-navbar .nav-link:hover,
.gdnc-navbar .nav-link.active {
    color: var(--color-text) !important;
}
.gdnc-navbar .nav-link:hover::after,
.gdnc-navbar .nav-link.active::after {
    width: 60%;
}

/* ============================================================
   6. HERO BÖLÜMÜ
   ============================================================ */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: var(--color-bg);
    padding-top: 80px;
}

/* Arka plan grid animasyonu */
.hero-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 20s linear infinite;
}
@keyframes gridMove {
    0%   { background-position: 0 0; }
    100% { background-position: 60px 60px; }
}

/* Blur ışık efektleri */
.hero-glow-1,
.hero-glow-2 {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}
.hero-glow-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.12) 0%, transparent 70%);
    top: -200px;
    right: -100px;
    animation: glowFloat1 8s ease-in-out infinite;
}
.hero-glow-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(123, 47, 255, 0.12) 0%, transparent 70%);
    bottom: -100px;
    left: -50px;
    animation: glowFloat2 10s ease-in-out infinite;
}
@keyframes glowFloat1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%       { transform: translate(-30px, 30px) scale(1.1); }
}
@keyframes glowFloat2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%       { transform: translate(20px, -20px) scale(1.05); }
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.25);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
    animation: fadeInDown 0.6s ease;
}
.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0, 255, 136, 0.4); }
    50%       { box-shadow: 0 0 0 8px rgba(0, 255, 136, 0); }
}

.hero-title {
    font-size: clamp(2.2rem, 5.5vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.7s ease 0.1s both;
}
.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--color-text-light);
    max-width: 560px;
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.7s ease 0.2s both;
}
.hero-cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    animation: fadeInUp 0.7s ease 0.3s both;
}

/* Stats kartları */
.hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 3rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.7s ease 0.4s both;
}
.hero-stat {
    display: flex;
    flex-direction: column;
}
.hero-stat .stat-num {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
}
.hero-stat .stat-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

/* Hero görsel / animasyonlu kart */
.hero-visual {
    position: relative;
    z-index: 2;
    animation: fadeInRight 0.8s ease 0.3s both;
}
.hero-dashboard-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 24px;
    position: relative;
    overflow: hidden;
}
.hero-dashboard-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

/* ============================================================
   7. HİZMET KARTLARI
   ============================================================ */
.service-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    height: 100%;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0;
    transition: var(--transition);
}
.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.service-card:hover::before { opacity: 1; }

.service-card[data-accent="#00D4FF"]:hover { border-color: rgba(0, 212, 255, 0.3); box-shadow: 0 24px 64px rgba(0, 212, 255, 0.15); }
.service-card[data-accent="#7B2FFF"]:hover  { border-color: rgba(123, 47, 255, 0.3); box-shadow: 0 24px 64px rgba(123, 47, 255, 0.15); }
.service-card[data-accent="#00FF88"]:hover  { border-color: rgba(0, 255, 136, 0.3); box-shadow: 0 24px 64px rgba(0, 255, 136, 0.15); }
.service-card[data-accent="#FF6B35"]:hover  { border-color: rgba(255, 107, 53, 0.3); box-shadow: 0 24px 64px rgba(255, 107, 53, 0.15); }

.service-icon-wrap {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: 1.25rem;
    transition: var(--transition);
}
.service-card:hover .service-icon-wrap {
    transform: scale(1.1) rotate(-5deg);
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}
.service-card p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 0;
}

/* ============================================================
   8. BLOG KARTLARI
   ============================================================ */
.blog-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 100%;
    transition: var(--transition);
}
.blog-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-accent);
}
.blog-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--color-surface2);
    display: block;
}
.blog-card-img-placeholder {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface2) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--color-text-muted);
}
.blog-card-body { padding: 1.5rem; }
.blog-card-category {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}
.blog-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.blog-card-excerpt {
    font-size: 0.88rem;
    color: var(--color-text-light);
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

/* ============================================================
   9. FOOTER
   ============================================================ */
.gdnc-footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    margin-top: 0;
}
.footer-top {
    padding: 80px 0 60px;
}
.footer-bottom {
    padding: 20px 0;
    border-top: 1px solid var(--color-border);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.footer-brand .footer-tagline {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
}
.footer-brand .footer-desc {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

.footer-heading {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin-bottom: 1.25rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}
.footer-links a {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
}
.footer-links a::before {
    content: '→';
    margin-right: 6px;
    font-size: 0.75rem;
    color: var(--color-accent);
    opacity: 0;
    transform: translateX(-6px);
    transition: var(--transition-fast);
}
.footer-links a:hover {
    color: var(--color-accent);
    padding-left: 4px;
}
.footer-links a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

.footer-contact-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}
.footer-contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}
.footer-contact-list li i {
    color: var(--color-accent);
    margin-top: 3px;
    flex-shrink: 0;
}
.footer-contact-list a {
    color: var(--color-text-muted);
}
.footer-contact-list a:hover {
    color: var(--color-accent);
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}
.social-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted) !important;
    font-size: 1rem;
    transition: var(--transition);
}
.social-icon:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-bg) !important;
    transform: translateY(-3px);
}

/* ============================================================
   10. FORM STILLERI
   ============================================================ */
.gdnc-form .form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: 6px;
}
.gdnc-form .form-control,
.gdnc-form .form-select {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    padding: 12px 16px;
    font-size: 0.95rem;
    transition: var(--transition-fast);
}
.gdnc-form .form-control:focus,
.gdnc-form .form-select:focus {
    background: rgba(0, 212, 255, 0.04);
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
    color: var(--color-text);
    outline: none;
}
.gdnc-form .form-control::placeholder { color: var(--color-text-muted); }
.gdnc-form textarea.form-control { min-height: 140px; resize: vertical; }

/* ============================================================
   11. BACK TO TOP BUTONU
   ============================================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent2));
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-md);
}
.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}
.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-accent);
}

/* ============================================================
   12. ANİMASYONLAR
   ============================================================ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(40px); }
    to   { opacity: 1; transform: translateX(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* Scroll ile görünür olan elementler */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   13. SAYFA BÖLÜM AYRAÇLARI
   ============================================================ */
.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
    margin: 0;
}

/* ============================================================
   14. BADGE VE ETİKET
   ============================================================ */
.gdnc-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 600;
}
.gdnc-badge-accent {
    background: rgba(0, 212, 255, 0.1);
    color: var(--color-accent);
    border: 1px solid rgba(0, 212, 255, 0.2);
}
.gdnc-badge-success {
    background: rgba(0, 255, 136, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(0, 255, 136, 0.2);
}

/* ============================================================
   15. ADMIN PANELİ TEMEL STİLLER
   ============================================================ */
.admin-sidebar {
    width: 260px;
    min-height: 100vh;
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 100;
    transition: var(--transition);
}
.admin-content {
    margin-left: 260px;
    min-height: 100vh;
    background: var(--color-bg);
    padding: 24px;
}
@media (max-width: 992px) {
    .admin-sidebar { transform: translateX(-100%); }
    .admin-sidebar.open { transform: translateX(0); }
    .admin-content { margin-left: 0; }
}

.admin-nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--color-text-muted);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    font-size: 0.9rem;
    font-weight: 500;
    margin: 2px 12px;
    text-decoration: none;
}
.admin-nav-link:hover,
.admin-nav-link.active {
    background: rgba(0, 212, 255, 0.08);
    color: var(--color-accent) !important;
}
.admin-nav-link i { font-size: 1rem; }

/* Stat kartları (dashboard) */
.stat-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: var(--transition);
}
.stat-card:hover {
    border-color: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-accent);
}
.stat-card .stat-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}
.stat-card .stat-number {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    margin: 0.75rem 0 0.25rem;
}
.stat-card .stat-label {
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

/* ============================================================
   16. MOBİL UYUMLULUK
   ============================================================ */
@media (max-width: 576px) {
    .hero-cta-group .btn-gdnc,
    .hero-cta-group .btn-gdnc-outline {
        width: 100%;
        justify-content: center;
    }
    .hero-stats { gap: 1rem; }
    .back-to-top { bottom: 20px; right: 20px; }
}