/* =========================================
   SIVAS BİLGİSAYAR - SEO LANDING PAGE
   Clean Minimal Black & White
   ========================================= */

:root {
    --bg: #000;
    --bg-card: #0a0a0a;
    --bg-card-hover: #111;
    --text: #fff;
    --text-dim: #999;
    --text-muted: #666;
    --border: #1a1a1a;
    --border-hover: #333;
    --accent: #fff;
    --font: 'Outfit', sans-serif;
    --radius: 8px;
    --container: 1140px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    font-weight: 300;
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--text);
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover { opacity: 0.7; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* === Top Bar === */
.top-bar {
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
    font-size: 13px;
    font-weight: 300;
}

.top-bar.hidden {
    transform: translateY(-100%);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    pointer-events: none;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.top-link {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-dim);
    font-weight: 300;
}

.top-link:hover { color: var(--text); opacity: 1; }

.badge-trust {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-dim);
    font-size: 12px;
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* === Header === */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.header.scrolled {
    background: rgba(0, 0, 0, 0.95);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo:hover { opacity: 1; }

.logo-icon { color: var(--text); display: flex; }

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-main {
    font-size: 18px;
    font-weight: 300;
    letter-spacing: -0.5px;
}

.logo-main strong {
    font-weight: 700;
}

.logo-sub {
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: 300;
}

.nav {
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-link {
    padding: 8px 14px;
    font-size: 14px;
    font-weight: 300;
    color: var(--text-dim);
    border-radius: var(--radius);
    transition: all 0.2s;
}

.nav-link:hover {
    color: var(--text);
    opacity: 1;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--text);
    color: #000 !important;
    padding: 8px 18px;
    border-radius: 100px;
    font-weight: 500;
    margin-left: 8px;
}

.nav-cta:hover {
    opacity: 0.85 !important;
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
}

.mobile-toggle span {
    display: block;
    width: 18px;
    height: 1.5px;
    background: var(--text);
    transition: all 0.3s;
}

.mobile-toggle.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* === Hero === */
.hero {
    position: relative;
    padding: 120px 0 100px;
    overflow: hidden;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse 70% 50% at 50% 30%, black, transparent);
    -webkit-mask-image: radial-gradient(ellipse 70% 50% at 50% 30%, black, transparent);
}

.hero-glow, .hero-glow-1, .hero-glow-2 { display: none; }

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--border-hover);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 13px;
    color: var(--text-dim);
    font-weight: 300;
    margin-bottom: 28px;
    letter-spacing: 0.5px;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background: #4ade80;
    border-radius: 50%;
    animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero h1 {
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 300;
    line-height: 1.05;
    letter-spacing: -2px;
    margin-bottom: 24px;
}

.gradient-text {
    font-weight: 300;
    color: var(--text);
    /* no gradient, clean white */
}

.hero-desc {
    font-size: 17px;
    color: var(--text-dim);
    line-height: 1.8;
    margin-bottom: 36px;
    font-weight: 300;
}

.hero-desc strong {
    color: var(--text);
    font-weight: 500;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 56px;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 14px;
    font-weight: 400;
    font-family: var(--font);
    border-radius: 100px;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
    letter-spacing: 0.3px;
}

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

.btn-primary:hover {
    opacity: 0.85;
    color: #000;
}

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

.btn-outline:hover {
    border-color: var(--text-dim);
    opacity: 1;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 15px;
}

/* === Hero Stats === */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.stat-item { text-align: left; }

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 300;
    letter-spacing: -1px;
    color: var(--text);
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* === Sections === */
.section { padding: 100px 0; }

.section-header {
    text-align: left;
    max-width: 560px;
    margin-bottom: 56px;
}

.section-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 400;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 14px;
}

.section-header h2 {
    font-size: clamp(28px, 3.5vw, 42px);
    font-weight: 300;
    letter-spacing: -1px;
    margin-bottom: 14px;
    line-height: 1.15;
}

.section-header p {
    color: var(--text-dim);
    font-size: 16px;
    font-weight: 300;
}

/* === Services === */
.services { border-top: 1px solid var(--border); }

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.service-card {
    background: var(--bg);
    padding: 36px;
    transition: background 0.3s;
    opacity: 0;
    transform: translateY(20px);
}

.service-card.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s, transform 0.6s;
}

.service-card:hover {
    background: var(--bg-card-hover);
}

.service-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    margin-bottom: 24px;
}

.service-card:hover .service-icon { color: var(--text); }

.service-card h3 {
    font-size: 17px;
    font-weight: 500;
    margin-bottom: 10px;
    letter-spacing: -0.3px;
}

.service-card p {
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
    font-weight: 300;
}

.service-features {
    list-style: none;
    margin-bottom: 20px;
}

.service-features li {
    font-size: 13px;
    color: var(--text-muted);
    padding: 3px 0;
    padding-left: 16px;
    position: relative;
    font-weight: 300;
}

.service-features li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--text-muted);
}

.service-link {
    font-size: 13px;
    font-weight: 400;
    color: var(--text-dim);
    letter-spacing: 0.5px;
    transition: color 0.2s;
}

.service-link:hover { color: var(--text); opacity: 1; }

/* === Why Us === */
.why-us { border-top: 1px solid var(--border); }

.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.why-card {
    background: var(--bg);
    padding: 36px;
    position: relative;
    transition: background 0.3s;
    opacity: 0;
    transform: translateY(20px);
}

.why-card.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s, transform 0.6s;
}

.why-card:hover { background: var(--bg-card-hover); }

.why-number {
    font-size: 64px;
    font-weight: 200;
    color: var(--border-hover);
    position: absolute;
    top: 16px;
    right: 24px;
    line-height: 1;
    letter-spacing: -3px;
}

.why-card h3 {
    font-size: 17px;
    font-weight: 500;
    margin-bottom: 10px;
    letter-spacing: -0.3px;
}

.why-card p {
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.7;
    font-weight: 300;
}

/* === Brands === */
.brands { border-top: 1px solid var(--border); }

.brands-track {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.brand-item {
    background: var(--bg);
    padding: 32px 20px;
    text-align: center;
    transition: background 0.3s;
    opacity: 0;
    transform: translateY(10px);
}

.brand-item.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.5s, transform 0.5s;
}

.brand-item:hover { background: var(--bg-card-hover); }

.brand-name {
    display: block;
    font-size: 22px;
    font-weight: 300;
    letter-spacing: -0.5px;
    margin-bottom: 6px;
}

.brand-badge {
    font-size: 11px;
    font-weight: 300;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* === CTA Banner === */
.cta-banner {
    padding: 80px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.cta-banner::before { display: none; }

.cta-content {
    text-align: center;
    max-width: 560px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 300;
    letter-spacing: -1px;
    margin-bottom: 14px;
}

.cta-content p {
    color: var(--text-dim);
    font-size: 16px;
    margin-bottom: 32px;
    font-weight: 300;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

/* === FAQ === */
.faq { border-top: 1px solid var(--border); }

.faq-list {
    max-width: 680px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border);
    overflow: hidden;
    opacity: 0;
    transform: translateY(10px);
}

.faq-item.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.4s, transform 0.4s;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    cursor: pointer;
    font-size: 15px;
    font-weight: 400;
    color: var(--text);
    list-style: none;
    transition: color 0.2s;
}

.faq-question::-webkit-details-marker { display: none; }
.faq-question:hover { color: var(--text-dim); }

.faq-chevron {
    color: var(--text-muted);
    transition: transform 0.3s;
    flex-shrink: 0;
    margin-left: 12px;
}

.faq-item[open] .faq-chevron { transform: rotate(180deg); }

.faq-answer {
    padding: 0 0 24px;
    color: var(--text-dim);
    font-size: 14px;
    line-height: 1.8;
    font-weight: 300;
}

.faq-answer ul {
    margin: 12px 0;
    padding-left: 20px;
}

.faq-answer li {
    margin-bottom: 6px;
    font-weight: 300;
}

.faq-answer a { color: var(--text); text-decoration: underline; }

/* === Contact === */
.contact { border-top: 1px solid var(--border); }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    opacity: 0;
    transform: translateX(-10px);
}

.contact-card.visible {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.5s, transform 0.5s;
}

.contact-card:last-child { border-bottom: none; }

.contact-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-dim);
    flex-shrink: 0;
}

.contact-card h4 {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 2px;
}

.contact-card a {
    display: block;
    font-size: 14px;
    color: var(--text-dim);
    font-weight: 300;
}

.contact-card a:hover { color: var(--text); opacity: 1; }

.contact-card p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
    font-weight: 300;
}

.map-wrapper {
    width: 100%;
    height: 420px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}

.map-wrapper iframe { border-radius: var(--radius); }

/* === SEO Content === */
.seo-content {
    padding: 60px 0;
    border-top: 1px solid var(--border);
}

.seo-content article {
    max-width: 680px;
    margin: 0 auto;
}

.seo-content h2 {
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 14px;
}

.seo-content h3 {
    font-size: 17px;
    font-weight: 500;
    margin-top: 28px;
    margin-bottom: 10px;
}

.seo-content p {
    color: var(--text-dim);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 14px;
    font-weight: 300;
}

/* === Footer === */
.footer {
    border-top: 1px solid var(--border);
    padding: 64px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 300;
    margin-bottom: 14px;
}

.footer-logo:hover { opacity: 1; }
.footer-logo strong { font-weight: 700; }
.footer-logo .logo-icon { display: flex; }

.footer-brand p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    font-weight: 300;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 11px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
    color: var(--text-dim);
}

.footer-links nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links nav a {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 300;
}

.footer-links nav a:hover { color: var(--text); opacity: 1; }

.footer-contact a {
    display: block;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 300;
    margin-bottom: 6px;
}

.footer-phone {
    display: flex !important;
    align-items: center;
    gap: 8px;
    color: var(--text) !important;
    font-weight: 400;
    font-size: 15px !important;
}

.footer-hours {
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.7;
    margin-top: 12px;
    font-weight: 300;
}

.footer-hours strong { font-weight: 500; color: var(--text-dim); }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 300;
}

.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--text); opacity: 1; }

.footer-bottom-links {
    display: flex;
    gap: 20px;
}

/* === Floating CTA === */
.floating-cta {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 900;
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--text);
    color: #000;
    padding: 14px 22px;
    border-radius: 100px;
    font-weight: 500;
    font-size: 14px;
    box-shadow: 0 4px 24px rgba(255,255,255,0.1);
    transition: all 0.2s;
    animation: fadeIn 1s ease 1s both;
}

.floating-cta:hover {
    transform: scale(1.03);
    opacity: 1 !important;
    color: #000;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === Responsive === */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .why-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .top-bar-right { display: none; }
    .mobile-toggle { display: flex; }

    .nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 16px;
        gap: 2px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-120%);
        opacity: 0;
        transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 999;
    }

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

    .nav-link { width: 100%; padding: 12px 16px; }
    .nav-cta { margin-left: 0; justify-content: center; margin-top: 8px; }

    .hero { padding: 72px 0 64px; }
    .hero h1 { font-size: 36px; letter-spacing: -1px; }

    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 20px; }

    .services-grid,
    .why-grid { grid-template-columns: 1fr; }

    .brands-track { grid-template-columns: repeat(2, 1fr); }

    .contact-grid { grid-template-columns: 1fr; }
    .map-wrapper { height: 260px; }

    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }

    .section { padding: 64px 0; }
    .section-header { margin-bottom: 40px; }

    .cta-actions { flex-direction: column; align-items: center; }

    .floating-cta .floating-text { display: none; }
    .floating-cta { padding: 14px; border-radius: 50%; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 30px; }
    .hero-desc { font-size: 15px; }
    .hero-actions { flex-direction: column; }
    .btn { width: 100%; justify-content: center; }
    .brands-track { grid-template-columns: 1fr 1fr; }
    .stat-number { font-size: 26px; }
}

@media print {
    .top-bar, .header, .floating-cta, .hero-bg-grid { display: none; }
    body { background: #fff; color: #000; }
    .section { padding: 16px 0; }
    a { color: #000; }
}