/* Premium Corporate Blue & White Design System - Vanilla CSS */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    color-scheme: only light;
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --card-bg: #ffffff;
    --card-border: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-blue: #0284c7;
    --accent-blue-deep: #0369a1;
    --accent-blue-light: #e0f2fe;
    --success: #059669;
    --error: #dc2626;
    --accent-pink: #db2777;
    --accent-indigo: #4f46e5;
    --ink: #141d31;
    --ink-soft: #1b2540;
    --cyan: #38bdf8;
    --amber: #fbbf24;
    --font-sans: 'Outfit', sans-serif;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-soft: 0 10px 25px -5px rgba(2, 132, 199, 0.05), 0 8px 10px -6px rgba(2, 132, 199, 0.05);
    --shadow-hover: 0 20px 25px -5px rgba(2, 132, 199, 0.12), 0 10px 10px -5px rgba(2, 132, 199, 0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(at 0% 0%, rgba(14, 165, 233, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(2, 132, 199, 0.05) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Header & Navigation */
header {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.nav-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 1.1rem 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 2.2rem;
    height: 2.2rem;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-deep));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: white;
    box-shadow: 0 4px 10px rgba(2, 132, 199, 0.2);
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.logo-text span {
    color: var(--accent-blue);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* Buttons */
.btn {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 0.65rem 1.4rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.btn-primary {
    background: linear-gradient(to right, var(--accent-blue), var(--accent-blue-deep));
    color: white;
    box-shadow: 0 4px 15px rgba(2, 132, 199, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(2, 132, 199, 0.35);
    background: linear-gradient(to right, var(--accent-blue-deep), var(--accent-blue));
}

.btn-secondary {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: var(--text-primary);
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.btn-secondary:hover {
    background: #f8fafc;
    border-color: #94a3b8;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
}

.btn-outline:hover {
    background: var(--accent-blue-light);
    transform: translateY(-1px);
}

.btn-google {
    background: white;
    color: #1f2937;
    font-weight: 500;
    border: 1px solid #e2e8f0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* Tehlikeli işlemler (sil / lisans iptali): yumuşak kırmızı, hover'da dolar */
.btn-danger {
    background: rgba(220, 38, 38, 0.07);
    border: 1px solid rgba(220, 38, 38, 0.3);
    color: var(--error);
}

.btn-danger:hover {
    background: var(--error);
    border-color: var(--error);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
}

.btn-google:hover {
    background: #f8fafc;
    border-color: #cbd5e1;
    transform: translateY(-1px);
}

/* User Profile Badge in Nav */
.user-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    padding: 0.35rem 0.75rem 0.35rem 0.35rem;
    border-radius: 20px;
    background: #ffffff;
    border: 1px solid var(--card-border);
    transition: var(--transition-smooth);
    box-shadow: 0 1px 2px rgba(0,0,0,0.02);
}

.user-badge:hover {
    background: #f8fafc;
    border-color: #cbd5e1;
}

.user-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid #cbd5e1;
}

.user-name {
    font-size: 0.9rem;
    font-weight: 500;
}

/* Hero Section */
.hero {
    max-width: 1200px;
    margin: 4rem auto 2.5rem;
    padding: 0 2rem;
    text-align: center;
}

.hero-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--accent-blue-light);
    border: 1px solid rgba(2, 132, 199, 0.15);
    border-radius: 20px;
    color: var(--accent-blue-deep);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
    color: #0f172a;
}

.gradient-text {
    background: linear-gradient(135deg, #0f172a 30%, var(--accent-blue-deep) 70%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

/* Product Showcase Grid */
.products-section {
    max-width: 1200px;
    margin: 2rem auto 5rem;
    padding: 0 2rem;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

/* Premium White Card */
.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2.2rem;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    height: 100%;
    box-shadow: var(--shadow-soft);
}

.glass-card:hover {
    transform: translateY(-6px);
    border-color: rgba(2, 132, 199, 0.2);
    box-shadow: var(--shadow-hover);
}

.product-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.product-title {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.3;
    color: #1e293b;
}

.product-description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1rem;
    margin-bottom: 2rem;
    flex-grow: 1;
}

/* Pricing Layout */
.pricing-options {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 0.85rem;
    margin-bottom: 1.5rem;
}

.price-option-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0.5rem;
    border-bottom: 1px solid #e2e8f0;
    cursor: pointer;
    transition: var(--transition-smooth);
    border-radius: 8px;
}

.price-option-row:last-child {
    border-bottom: none;
}

.price-option-row:hover {
    background: #f1f5f9;
}

.price-option-row.selected {
    background: var(--accent-blue-light);
    border-color: rgba(2, 132, 199, 0.3);
}

.price-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    color: #334155;
}

.price-radio {
    accent-color: var(--accent-blue);
    width: 1.1rem;
    height: 1.1rem;
}

.price-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.price-value span {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Profile Layout */
.main-content {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 2rem;
    width: 100%;
    flex-grow: 1;
}

.profile-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2.5rem;
    align-items: start;
}

.profile-grid > section {
    min-width: 0; /* Kod bloklarının ızgara (grid) kolonunu sağa doğru esnetmesini engeller */
}

.profile-sidebar {
    position: sticky;
    top: 6rem;
}

.profile-card {
    text-align: center;
}

.profile-avatar-large {
    width: 6.5rem;
    height: 6.5rem;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1.5rem;
    border: 3px solid var(--accent-blue);
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.15);
}

.profile-email {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0.4rem 0 1.5rem;
}

.divider {
    height: 1px;
    background: var(--card-border);
    margin: 1.5rem 0;
}

/* Purchased Licenses List */
.licenses-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.licenses-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.license-item {
    padding: 2rem;
}

.license-info-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.license-badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-active {
    background: rgba(5, 150, 105, 0.1);
    border: 1px solid rgba(5, 150, 105, 0.2);
    color: var(--success);
}

.badge-expired {
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid rgba(220, 38, 38, 0.2);
    color: var(--error);
}

.license-dates {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Key container */
.key-box {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.02);
}

.key-text {
    font-family: monospace;
    font-size: 0.95rem;
    color: var(--accent-blue-deep);
    word-break: break-all;
    user-select: all;
    font-weight: 600;
    min-width: 0; /* Flexbox içinde sığması ve taşma yapmaması için */
}

/* Code Integration Snippet */
.code-section-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.code-container {
    background: #0f172a; /* Programmer friendly dark mode code box */
    border: 1px solid #1e293b;
    border-radius: 10px;
    padding: 1.25rem;
    position: relative;
    max-height: 250px;
    overflow: auto; /* Hem dikey hem yatay taşmaları kaydırma çubuğu ile kontrol eder */
    max-width: 100%;
}

.code-block {
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.85rem;
    color: #e2e8f0;
    white-space: pre;
    line-height: 1.5;
}

.copy-btn-floating {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.copy-btn-floating:hover {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

/* iyzico Mock Payment Screen */
.mock-payment-container {
    max-width: 480px;
    margin: 4rem auto;
    padding: 0 1.5rem;
}

.iyzico-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.iyzico-logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: #0b93e2;
    letter-spacing: -1px;
}

.iyzico-logo span {
    color: #3b5998;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Alert notifications */
.alert {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    background: #ffffff;
    border: 1px solid var(--card-border);
    border-left: 4px solid var(--accent-blue);
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    z-index: 1000;
    display: flex;
    align-items: center;
    color: var(--text-primary);
    gap: 0.75rem;
    /* Gizliyken translateY tek basina yetmiyordu (kutunun ust ~5px'i her sayfada
       sag altta gorunur kaliyordu); visibility ile tam gizlenir, kaybolma
       animasyonu bitince (0.4s gecikmeli) devreye girer. */
    transform: translateY(150%);
    visibility: hidden;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), visibility 0s linear 0.4s;
}

.alert.show {
    transform: translateY(0);
    visibility: visible;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), visibility 0s;
}

.alert-success {
    border-left-color: var(--success);
}

.alert-error {
    border-left-color: var(--error);
}

/* Footer */
footer {
    border-top: 1px solid var(--card-border);
    padding: 2.5rem 2rem;
    background: #ffffff;
    margin-top: auto;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    box-shadow: 0 -1px 3px rgba(0,0,0,0.01);
}

/* Developer modal */
#login-modal > div {
    background: #ffffff !important;
    border: 1px solid var(--card-border) !important;
    color: var(--text-primary) !important;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1) !important;
}

/* ============================================================
   ANA SAYFA (index) — Koyu "blueprint" tema ve yeni bölümler.
   Yalnızca body.zdark altında veya z-/feat-/cta- önekli yeni
   sınıflarda geçerlidir; rehber/profil/admin etkilenmez.
   ============================================================ */

html { scroll-behavior: smooth; }

/* Koyu, camsı navbar (yalnızca ana sayfa) */
body.zdark {
    background-color: var(--ink);
    background-image: none;
}

body.zdark header {
    background: rgba(20, 29, 49, 0.8);
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.35);
}

body.zdark .logo-text { color: #f1f5f9; }
body.zdark .logo-text span { color: var(--cyan); }

body.zdark .nav-links {
    display: flex;
    gap: 1.5rem;
    margin-right: 0.5rem;
}

body.zdark .nav-links a {
    color: #cbd5e1;
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: var(--transition-smooth);
}

body.zdark .nav-links a:hover { color: var(--cyan); }

body.zdark .btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(148, 163, 184, 0.25);
    color: #e2e8f0;
}

body.zdark .btn-secondary:hover {
    background: rgba(56, 189, 248, 0.12);
    border-color: rgba(56, 189, 248, 0.45);
}

body.zdark .user-badge {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(148, 163, 184, 0.25);
    color: #e2e8f0;
}

body.zdark .user-badge:hover { border-color: rgba(56, 189, 248, 0.45); }

/* İç sayfalar (rehber/profil/admin) koyu zeminde: içerik kartları beyaz
   kalır, kart DIŞINDAKİ başlık ve metinler aydınlanır */
body.zdark .hero-tag {
    background: rgba(56, 189, 248, 0.1);
    border-color: rgba(56, 189, 248, 0.3);
    color: #7dd3fc;
}

body.zdark .hero-title { color: #f8fafc; }

body.zdark .gradient-text {
    background: linear-gradient(100deg, var(--cyan) 10%, #818cf8 90%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

body.zdark .hero-subtitle { color: #94a3b8; }

body.zdark .licenses-header h2 { color: #f1f5f9; }

/* Koyu zeminde kart: bembeyaz yerine kırık beyaz + yumuşak kenar,
   zemin ile geçiş daha az sert olsun */
body.zdark .glass-card {
    background: #eef2f9;
    border-color: rgba(148, 163, 184, 0.35);
    box-shadow: 0 18px 40px -20px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.04);
}

body.zdark .glass-card:hover {
    border-color: rgba(56, 189, 248, 0.4);
    box-shadow: 0 24px 48px -20px rgba(0, 0, 0, 0.5), 0 0 24px rgba(56, 189, 248, 0.08);
}

/* Kırık beyaz kart içinde iç kutular saf beyaza dönsün (katman hissi) */
body.zdark .pricing-options,
body.zdark .key-box,
body.zdark .form-input {
    background: #ffffff;
}

/* ---- HERO ---- */
.zhero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(ellipse 80% 60% at 70% -10%, rgba(56, 189, 248, 0.16), transparent 60%),
        radial-gradient(ellipse 60% 50% at 10% 110%, rgba(79, 70, 229, 0.18), transparent 60%),
        var(--ink);
    color: #e2e8f0;
    padding: 5rem 2rem 4.5rem;
}

/* Milimetrik blueprint ızgarası */
.zhero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(56, 189, 248, 0.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 189, 248, 0.055) 1px, transparent 1px),
        linear-gradient(rgba(56, 189, 248, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 189, 248, 0.03) 1px, transparent 1px);
    background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
    mask-image: radial-gradient(ellipse 90% 90% at 50% 40%, black 40%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 90% 90% at 50% 40%, black 40%, transparent 100%);
    pointer-events: none;
}

.zhero-inner {
    position: relative;
    max-width: 1600px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3.5rem;
    align-items: center;
}

.zhero-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.3);
    border-radius: 999px;
    color: #7dd3fc;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.6px;
    margin-bottom: 1.4rem;
}

.zhero-tag .dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 8px var(--cyan);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.75); }
}

.zhero h1 {
    font-size: 3.3rem;
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -1.2px;
    color: #f8fafc;
    margin-bottom: 1.3rem;
}

.zhero h1 .spark {
    background: linear-gradient(100deg, var(--cyan) 10%, #818cf8 55%, var(--amber) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.zhero-sub {
    font-size: 1.15rem;
    color: #94a3b8;
    line-height: 1.7;
    max-width: 540px;
    margin-bottom: 2.2rem;
}

.zhero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2.8rem;
}

.btn-glow {
    background: linear-gradient(120deg, #0ea5e9, #0369a1);
    color: white;
    font-size: 1rem;
    padding: 0.85rem 1.8rem;
    border-radius: 10px;
    box-shadow: 0 0 24px rgba(14, 165, 233, 0.45), 0 4px 14px rgba(0, 0, 0, 0.4);
}

.btn-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 36px rgba(14, 165, 233, 0.65), 0 6px 18px rgba(0, 0, 0, 0.45);
}

.btn-ghost-dark {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(148, 163, 184, 0.3);
    color: #e2e8f0;
    font-size: 1rem;
    padding: 0.85rem 1.8rem;
    border-radius: 10px;
}

.btn-ghost-dark:hover {
    background: rgba(56, 189, 248, 0.1);
    border-color: rgba(56, 189, 248, 0.5);
    transform: translateY(-2px);
}

.zhero-stats {
    display: flex;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.zstat .num {
    font-size: 1.6rem;
    font-weight: 800;
    color: #f1f5f9;
    letter-spacing: -0.5px;
}

.zstat .num em {
    font-style: normal;
    color: var(--cyan);
}

.zstat .lbl {
    font-size: 0.82rem;
    color: #64748b;
    font-weight: 500;
    margin-top: 0.15rem;
}

/* AutoCAD komut satırı simülasyonu */
.zterm {
    position: relative;
    background: #0d1526;
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 14px;
    box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.6), 0 0 40px rgba(56, 189, 248, 0.07);
    overflow: hidden;
}

.zterm-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1rem;
    background: rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.zterm-bar .tdot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
}

.zterm-bar .tdot:nth-child(1) { background: #f87171; }
.zterm-bar .tdot:nth-child(2) { background: #fbbf24; }
.zterm-bar .tdot:nth-child(3) { background: #34d399; }

.zterm-bar .ttitle {
    margin-left: 0.6rem;
    font-size: 0.8rem;
    color: #94a3b8;
    font-weight: 500;
}

.zterm-ribbon {
    display: flex;
    gap: 0.45rem;
    padding: 0.6rem 1rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
    background: rgba(255, 255, 255, 0.02);
    overflow: hidden;
}

.zterm-ribbon img {
    width: 1.8rem;
    height: 1.8rem;
    padding: 0.28rem;
    background: rgba(56, 189, 248, 0.07);
    border: 1px solid rgba(148, 163, 184, 0.12);
    border-radius: 7px;
    flex: 0 0 auto;
}

.zterm-body {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.88rem;
    line-height: 1.85;
    padding: 1.1rem 1.25rem 1.3rem;
    min-height: 232px;
    color: #cbd5e1;
}

.zterm-body .tl-cmd { color: #7dd3fc; font-weight: 700; }
.zterm-body .tl-cmd::before { content: "Komut: "; color: #64748b; font-weight: 400; }
.zterm-body .tl-ok { color: #34d399; }
.zterm-body .tl-info { color: #94a3b8; }

.zterm-caret {
    display: inline-block;
    width: 8px;
    height: 1rem;
    background: var(--cyan);
    vertical-align: text-bottom;
    animation: blink-caret 0.9s step-end infinite;
}

@keyframes blink-caret {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* ---- Komut marquee şeridi ---- */
.cmd-marquee {
    background: var(--ink-soft);
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
    padding: 1rem 0;
    overflow: hidden;
    position: relative;
}

.cmd-marquee::before,
.cmd-marquee::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    width: 120px;
    z-index: 2;
    pointer-events: none;
}

.cmd-marquee::before {
    left: 0;
    background: linear-gradient(90deg, var(--ink-soft), transparent);
}

.cmd-marquee::after {
    right: 0;
    background: linear-gradient(-90deg, var(--ink-soft), transparent);
}

.cmd-track {
    display: flex;
    gap: 0.9rem;
    width: max-content;
    animation: scroll-x 36s linear infinite;
}

.cmd-marquee:hover .cmd-track { animation-play-state: paused; }

@keyframes scroll-x {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

.cmd-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-family: 'Consolas', monospace;
    font-size: 0.85rem;
    font-weight: 700;
    color: #7dd3fc;
    background: rgba(56, 189, 248, 0.07);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: 999px;
    padding: 0.45rem 1.1rem;
    white-space: nowrap;
}

.cmd-pill span {
    font-family: var(--font-sans);
    font-weight: 500;
    color: #64748b;
    font-size: 0.8rem;
}

/* ---- Bölüm başlıkları (koyu zemin) ---- */
.zsection {
    background: var(--ink);
    color: #e2e8f0;
    padding: 5rem 2rem;
}

.zsection.alt { background: var(--ink-soft); }

.zsection-inner { max-width: 1600px; margin: 0 auto; }

.zeyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--cyan);
    margin-bottom: 0.9rem;
}

.ztitle {
    font-size: 2.3rem;
    font-weight: 800;
    letter-spacing: -0.8px;
    color: #f8fafc;
    margin-bottom: 0.9rem;
    line-height: 1.2;
}

.zsub {
    font-size: 1.05rem;
    color: #94a3b8;
    line-height: 1.65;
    max-width: 640px;
}

.zsection .center { text-align: center; }
.zsection .center .zsub { margin: 0 auto; }

/* ---- Özellik kartları ---- */
.feat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.3rem;
    margin-top: 3rem;
}

.feat-card {
    display: flex;
    gap: 1.1rem;
    align-items: flex-start;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 14px;
    padding: 1.5rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.feat-card::after {
    content: "→";
    position: absolute;
    right: 1.2rem;
    top: 1.3rem;
    color: var(--cyan);
    opacity: 0;
    transform: translateX(-6px);
    transition: var(--transition-smooth);
}

.feat-card:hover {
    transform: translateY(-4px);
    border-color: rgba(56, 189, 248, 0.45);
    background: rgba(56, 189, 248, 0.05);
    box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.5);
}

.feat-card:hover::after {
    opacity: 1;
    transform: translateX(0);
}

.feat-icon {
    flex: 0 0 auto;
    width: 3.2rem;
    height: 3.2rem;
    background: linear-gradient(145deg, #1e293b, #0f172a);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.feat-icon img { width: 2.1rem; height: 2.1rem; }

.feat-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #f1f5f9;
    margin-bottom: 0.35rem;
}

.feat-card .cmd {
    font-family: 'Consolas', monospace;
    font-size: 0.72rem;
    font-weight: 700;
    color: #7dd3fc;
    background: rgba(56, 189, 248, 0.1);
    border-radius: 5px;
    padding: 0.1rem 0.45rem;
    margin-left: 0.4rem;
    vertical-align: middle;
}

.feat-card p {
    font-size: 0.9rem;
    color: #94a3b8;
    line-height: 1.55;
    margin: 0;
}

/* ---- Nasıl çalışır (3 adım) ---- */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
    counter-reset: adim;
}

.step-card {
    position: relative;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 16px;
    padding: 2rem 1.75rem 1.75rem;
    counter-increment: adim;
}

.step-card::before {
    content: "0" counter(adim);
    display: inline-block;
    font-size: 2.6rem;
    font-weight: 800;
    letter-spacing: -1px;
    background: linear-gradient(120deg, var(--cyan), #818cf8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.9rem;
}

.step-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: #f1f5f9;
    margin-bottom: 0.5rem;
}

.step-card p {
    font-size: 0.92rem;
    color: #94a3b8;
    line-height: 1.6;
    margin: 0;
}

.step-card .kbd-dark {
    font-family: 'Consolas', monospace;
    font-size: 0.8rem;
    font-weight: 700;
    color: #0f172a;
    background: #e2e8f0;
    border-radius: 5px;
    padding: 0.1rem 0.45rem;
}

/* ---- Ürünler bölümü (koyu zemin, aydınlık kartlar) ---- */
.zsection .products-grid {
    grid-template-columns: repeat(auto-fit, minmax(340px, 460px));
    justify-content: center;
    margin-top: 3rem;
}

.product-head {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.2rem;
}

.product-icon-chip {
    flex: 0 0 auto;
    width: 3.4rem;
    height: 3.4rem;
    font-size: 1.6rem;
    background: linear-gradient(135deg, #0ea5e9, #4f46e5);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 16px rgba(14, 165, 233, 0.35);
}

.product-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.4rem;
}

.ptag {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent-blue-deep);
    background: var(--accent-blue-light);
    border: 1px solid rgba(2, 132, 199, 0.18);
    border-radius: 999px;
    padding: 0.25rem 0.7rem;
}

.plan-pill {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 700;
    color: #9a3412;
    background: #ffedd5;
    border: 1px solid #fed7aa;
    border-radius: 999px;
    padding: 0.12rem 0.55rem;
    margin-left: 0.45rem;
    vertical-align: middle;
    white-space: nowrap;
}

.plan-pill.hot {
    color: #ffffff;
    background: linear-gradient(120deg, #f59e0b, #ea580c);
    border-color: transparent;
}

.buy-note {
    text-align: center;
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-top: 0.8rem;
}

/* Yükleniyor iskeleti */
.skeleton-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(148, 163, 184, 0.12);
    border-radius: 16px;
    min-height: 380px;
    position: relative;
    overflow: hidden;
}

.skeleton-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, transparent 30%, rgba(148, 163, 184, 0.08) 50%, transparent 70%);
    animation: shimmer 1.6s infinite;
}

@keyframes shimmer {
    from { transform: translateX(-100%); }
    to { transform: translateX(100%); }
}

/* ---- Güven şeridi ---- */
.trust-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.3rem;
    margin-top: 3rem;
}

.trust-item {
    display: flex;
    gap: 0.9rem;
    align-items: flex-start;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 13px;
    padding: 1.3rem;
}

.trust-item .ticon {
    font-size: 1.4rem;
    line-height: 1;
    margin-top: 0.15rem;
}

.trust-item h4 {
    font-size: 0.98rem;
    font-weight: 700;
    color: #f1f5f9;
    margin-bottom: 0.3rem;
}

.trust-item p {
    font-size: 0.85rem;
    color: #94a3b8;
    line-height: 1.55;
    margin: 0;
}

/* ---- SSS ---- */
.faq-list {
    max-width: 760px;
    margin: 3rem auto 0;
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.faq-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 12px;
    transition: var(--transition-smooth);
}

.faq-item[open] { border-color: rgba(56, 189, 248, 0.4); }

.faq-item summary {
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1.15rem 1.4rem;
    font-size: 1rem;
    font-weight: 600;
    color: #f1f5f9;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
    content: "+";
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--cyan);
    transition: var(--transition-smooth);
    flex: 0 0 auto;
}

.faq-item[open] summary::after { transform: rotate(45deg); }

.faq-item .faq-body {
    padding: 0 1.4rem 1.25rem;
    font-size: 0.92rem;
    color: #94a3b8;
    line-height: 1.65;
}

/* ---- CTA bandı ---- */
.cta-band {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(ellipse 70% 120% at 50% 130%, rgba(56, 189, 248, 0.25), transparent 65%),
        var(--ink-soft);
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    text-align: center;
    padding: 5rem 2rem;
}

.cta-band .ztitle { margin-bottom: 1rem; }

.cta-band .zsub { margin: 0 auto 2.2rem; }

/* ---- Koyu footer (ana sayfa) ---- */
body.zdark footer {
    background: #101828;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    color: #64748b;
    box-shadow: none;
}

body.zdark footer a { color: #94a3b8; text-decoration: none; transition: var(--transition-smooth); }
body.zdark footer a:hover { color: var(--cyan); }

.zfooter-grid {
    max-width: 1600px;
    margin: 0 auto 2rem;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 2.5rem;
    text-align: left;
}

.zfooter-grid h5 {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #cbd5e1;
    margin-bottom: 1rem;
}

.zfooter-grid ul { list-style: none; padding: 0; margin: 0; }
.zfooter-grid li { margin-bottom: 0.6rem; font-size: 0.9rem; }
.zfooter-brand p { font-size: 0.9rem; line-height: 1.65; max-width: 340px; margin-top: 0.9rem; }

.zfooter-bottom {
    max-width: 1600px;
    margin: 0 auto;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(148, 163, 184, 0.08);
    font-size: 0.82rem;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ---- Ödeme logo bandı (iyzico ile Öde / MasterCard / Visa) + yasal footer ---- */
.zfooter-pay {
    display: flex;
    justify-content: center;
    margin: 0 auto 1.3rem;
}

.zfooter-pay img {
    display: block;
    height: 26px;
    max-width: min(92vw, 560px);
    background: #ffffff;
    border-radius: 10px;
    padding: 0.55rem 0.9rem;
    box-sizing: content-box;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.28);
}

.zfooter-links { margin-bottom: 0.7rem; }
.zfooter-links a { margin: 0 0.4rem; white-space: nowrap; }
.zfooter-links span { color: rgba(148, 163, 184, 0.4); }

.zfooter-contact {
    font-size: 0.8rem;
    margin-top: 0.5rem;
    color: rgba(255, 255, 255, 0.28);
}

body.zdark .zfooter-contact a { color: rgba(255, 255, 255, 0.45); }

/* ---- Kaydırma animasyonları ---- */
.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.in {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    .cmd-track { animation: none; }
    .zhero-tag .dot, .zterm-caret { animation: none; }
    html { scroll-behavior: auto; }
}

/* ---- Ana sayfa duyarlılık ---- */
@media (max-width: 980px) {
    .zhero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
    .zhero h1 { font-size: 2.5rem; }
    .steps-grid { grid-template-columns: 1fr; }
    .zfooter-grid { grid-template-columns: 1fr; gap: 1.8rem; }
    .zsection { padding: 3.5rem 1.25rem; }
    .zhero { padding: 3.5rem 1.25rem; }
    .zsection .products-grid { grid-template-columns: 1fr; }
    body.zdark .nav-links { display: none; }
}

/* Responsive adjustments */
@media (max-width: 900px) {
    .profile-grid {
        grid-template-columns: 1fr;
    }
    .profile-sidebar {
        position: static;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    /* Navbar'i dar ekranda alt satira sar (Google giris butonu kirpilmasin) */
    .nav-container {
        flex-wrap: wrap;
        justify-content: center;
        row-gap: 0.75rem;
        padding: 0.9rem 1rem;
    }
    .nav-menu {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.75rem;
    }
}