:root {
    --bg-color: #0F2F26;
    --surface: #143C31;
    --surface-hover: #18473A;
    --accent: #C8FF2D;
    --accent-hover: #b3e620;
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --border: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.15);
    
    --radius-sm: 12px;
    --radius-md: 18px;
    --radius-lg: 24px;
    --radius-full: 999px;
    
    --transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

/* Grid System (12 columns) */
.grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
}

.col-12 { grid-column: span 12; }
.col-6 { grid-column: span 6; }
.col-4 { grid-column: span 4; }
.col-3 { grid-column: span 3; }
.col-8 { grid-column: span 8; }

@media (max-width: 992px) {
    /* Moved to bottom responsive section */
}

@media (max-width: 768px) {
    /* Moved to bottom responsive section */
}

/* Typography */
h1, h2, h3, h4, h5 {
    line-height: 1.2;
    font-weight: 600;
    letter-spacing: -0.02em;
}

p {
    color: var(--text-secondary);
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

header.scrolled {
    background: rgba(15, 47, 38, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
}

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

.logo-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--accent);
    color: #000;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(200, 255, 45, 0.2);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--border-light);
}

/* Hero Section */
.hero {
    position: relative;
    padding: 160px 0 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-bg-glow {
    position: absolute;
    top: -20%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(200,255,45,0.08) 0%, rgba(15,47,38,0) 70%);
    filter: blur(80px);
    z-index: -1;
    pointer-events: none;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 64px;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 56px;
    margin-bottom: 24px;
    letter-spacing: -2px;
}

.hero-text p {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

/* Mockup */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.phone-mockup {
    width: 320px;
    height: 660px;
    background: #000;
    border-radius: 40px;
    border: 8px solid #1a221f;
    box-shadow: 0 40px 80px rgba(0,0,0,0.4), inset 0 0 0 1px rgba(255,255,255,0.1);
    position: relative;
    overflow: hidden;
    transform: rotate(5deg) scale(0.95);
    transition: var(--transition);
}

.phone-mockup:hover {
    transform: rotate(0deg) scale(1);
    box-shadow: 0 50px 100px rgba(0,0,0,0.5), inset 0 0 0 1px rgba(255,255,255,0.2);
}

.phone-screen {
    background: #06110D;
    height: 100%;
    border-radius: 32px;
    padding: 0;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* App Mockup Details */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 12px 12px;
}
.app-header-left {
    display: flex;
    align-items: center;
    gap: 8px;
}
.app-logo-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--accent);
    background: #11241C;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    color: #fff;
    font-size: 10px;
    font-weight: bold;
}
.app-title-group {
    display: flex;
    flex-direction: column;
}
.app-title {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 4px;
}
.app-subtitle {
    font-size: 10px;
    color: var(--accent);
}
.app-header-right {
    display: flex;
    gap: 8px;
}
.app-icon-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.05);
}
.app-icon-btn i {
    width: 14px; height: 14px;
    color: #fff;
}

.app-categories {
    display: flex;
    gap: 12px;
    padding: 0 12px 16px;
    overflow-x: auto;
    scrollbar-width: none;
}
.app-categories::-webkit-scrollbar { display: none; }
.app-category {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    min-width: 52px;
}
.cat-icon-wrap {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #11241C;
    display: flex;
    align-items: center;
    justify-content: center;
}
.cat-icon-wrap.dashed {
    background: transparent;
    border: 1px dashed var(--accent);
}
.cat-icon-wrap i { width: 20px; height: 20px; }
.app-category span {
    font-size: 10px;
    color: #fff;
}
.app-category.active span {
    color: var(--accent);
    font-weight: 600;
}

.app-feed {
    padding: 0 12px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    height: calc(100% - 210px);
    overflow-y: hidden;
}
.app-post {
    background: #0E2219;
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 16px;
    padding: 12px;
}
.post-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}
.post-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #333;
}
.post-meta { flex: 1; }
.post-name { font-size: 12px; font-weight: 700; color: #fff; }
.post-time { font-size: 10px; color: rgba(255,255,255,0.5); }
.post-more { color: rgba(255,255,255,0.5); }
.post-more i { width: 16px; height: 16px; }

.post-content {
    font-size: 13px;
    color: #fff;
    margin-bottom: 12px;
    text-align: left;
}

.post-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 12px;
}
.post-action {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: rgba(255,255,255,0.6);
}
.post-action i { width: 16px; height: 16px; }
.post-action.ml-auto { margin-left: auto; }

.app-bottom-nav {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #0A1711;
    border-top: 1px solid rgba(255,255,255,0.05);
    display: flex;
    justify-content: space-between;
    padding: 12px 16px 20px;
    border-bottom-left-radius: 32px;
    border-bottom-right-radius: 32px;
}
.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: rgba(255,255,255,0.5);
}
.nav-item i { width: 20px; height: 20px; }
.nav-item span { font-size: 9px; }
.nav-item.active { color: var(--accent); }
.add-btn { position: relative; top: -20px; }
.add-btn-inner {
    width: 48px;
    height: 48px;
    background: #11241C;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 4px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
.add-btn-inner i { color: #fff; width: 20px; height: 20px; }

/* Cards (Generic) */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.card:hover {
    background: var(--surface-hover);
    border-color: var(--border-light);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

/* Section Formatting */
.section {
    padding: 120px 0;
}

.section-header {
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 40px;
    margin-bottom: 16px;
}

/* Features Grid */
.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: rgba(200, 255, 45, 0.1);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.card p {
    font-size: 15px;
}

/* Neden Akhisar Plus */
.reasons-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.reason-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.reason-item:hover {
    background: rgba(255,255,255,0.04);
    border-color: var(--border-light);
}

.reason-icon {
    color: var(--accent);
}

/* Status Box */
.status-box {
    background: linear-gradient(135deg, var(--surface) 0%, rgba(20, 60, 49, 0.5) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px;
    position: relative;
    overflow: hidden;
}

.status-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.status-badge {
    background: rgba(200, 255, 45, 0.1);
    color: var(--accent);
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    border: 1px solid rgba(200, 255, 45, 0.2);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.status-badge .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.4; }
    100% { opacity: 1; }
}

/* Contact */
.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 16px;
    margin-bottom: 16px;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.contact-item:hover {
    color: var(--accent);
}

/* Footer */
footer {
    border-top: 1px solid var(--border);
    padding: 80px 0 32px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 64px;
}

.footer-links {
    display: flex;
    gap: 40px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--border);
    text-align: left;
    font-size: 13px;
    color: var(--text-secondary);
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }

/* Responsive Adjustments */
@media (max-width: 992px) {
    .col-md-12 { grid-column: span 12 !important; }
    .col-md-6 { grid-column: span 6 !important; }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 48px;
    }
    
    .hero-text p {
        margin: 0 auto 40px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-visual {
        justify-content: center;
        width: 100%;
    }
    
    .footer-top {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }
    
    .footer-brand p {
        margin: 12px auto 0;
    }
}

@media (max-width: 768px) {
    .col-sm-12 { grid-column: span 12 !important; }
    .grid { gap: 16px; }
    
    .container {
        padding: 0 20px;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .hero {
        padding: 120px 0 60px;
    }

    .hero-bg-glow {
        display: none; /* Prevent horizontal scroll on mobile */
    }
    
    .hero-text h1 {
        font-size: 38px;
        letter-spacing: -1px;
    }
    
    .hero-text p {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .phone-mockup {
        width: 290px;
        height: 600px;
        border-width: 6px;
        border-radius: 36px;
    }
    
    .phone-screen {
        border-radius: 30px;
        padding: 20px 14px;
    }
    
    .mockup-img {
        height: 100px;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .card {
        padding: 24px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 16px;
    }
    
    .status-box {
        padding: 32px 24px;
    }
}