/* 
  Bursa Teknik Servis - Mobile-First Premium Design
  Modern, Professional & Responsive
*/

:root {
    --primary-color: #0F62FE;
    --primary-light: #E0EFFF;
    --secondary-color: #FFB800;
    --dark-blue: #002D5D;
    --text-main: #161616;
    --text-muted: #525252;
    --bg-light: #F4F7FB;
    --bg-white: #FFFFFF;
    --glass-bg: rgba(255, 255, 255, 0.95);
    --border-color: #DDE1E6;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-premium: 0 8px 24px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 16px 48px rgba(15, 98, 254, 0.12);
    --border-radius: 16px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    color: var(--dark-blue);
    line-height: 1.2;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    transition: var(--transition);
}

ul {
    list-style: none;
}

/* Container & Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.flex-row {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.align-center {
    align-items: center;
}

.wrap {
    flex-wrap: wrap;
}

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

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 48px;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #0948CC);
    color: white !important;
    box-shadow: 0 4px 16px rgba(15, 98, 254, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(15, 98, 254, 0.35);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--primary-color) !important;
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-light);
}

.bigger {
    padding: 16px 32px;
    font-size: 1rem;
}

/* Upper Bar */
.upper-bar {
    background: var(--dark-blue);
    color: white;
    padding: 10px 0;
    font-size: 0.85rem;
}

.top-info span {
    margin-right: 24px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.top-info i {
    color: var(--secondary-color);
}

.top-contact a {
    margin-left: 16px;
    font-weight: 600;
    color: white;
}

.top-whatsapp {
    color: #25D366 !important;
}

/* Header */
header {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

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

.nav-links {
    gap: 8px;
}

.nav-links li {
    margin: 0;
}

.nav-links a {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--dark-blue);
    padding: 8px 16px;
    border-radius: 8px;
}

.nav-links a:not(.btn-primary):hover {
    background: var(--primary-light);
    color: var(--primary-color);
}

.mobile-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--dark-blue);
    cursor: pointer;
}

/* Sections */
section {
    padding: 80px 0;
}

.section-title h2 {
    font-size: 2.25rem;
    margin-bottom: 12px;
}

.subtitle {
    color: var(--primary-color);
    font-weight: 800;
    letter-spacing: 2px;
    font-size: 0.75rem;
    display: block;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.divider {
    width: 64px;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    margin: 16px auto;
    border-radius: 4px;
}

.badge {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary-color);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}

/* Hero */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #E0EFFF 0%, #FFFFFF 50%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(15, 98, 254, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero h1 {
    font-size: 3rem;
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero h1 span {
    color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), #0948CC);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-btns {
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image img {
    border-radius: 24px;
    box-shadow: var(--shadow-premium);
}

/* About */
.about {
    background: var(--bg-white);
}

.about-image img {
    border-radius: 20px;
    box-shadow: var(--shadow-premium);
}

.about-content h2 {
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-muted);
    margin-bottom: 16px;
    line-height: 1.8;
}

.stats {
    margin-top: 32px;
    gap: 24px;
}

.stat-item {
    text-align: center;
    padding: 24px;
    background: var(--bg-light);
    border-radius: var(--border-radius);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-item p {
    font-weight: 600;
    color: var(--dark-blue);
    font-size: 0.95rem;
}

/* Services */
.services {
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.service-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.service-img {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--bg-light);
}

.service-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.service-card:hover .service-img img {
    transform: scale(1.05);
}

.service-info {
    padding: 28px;
}

.service-info h3 {
    margin-bottom: 12px;
    font-size: 1.35rem;
}

.service-info p {
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
}

.mini-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mini-list li {
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
}

.mini-list i {
    color: #25D366;
    font-size: 1rem;
}

/* Districts */
.districts {
    padding: 64px 0;
    background: var(--dark-blue);
    color: white;
}

.districts h2,
.districts .subtitle {
    color: white;
}

.districts p {
    color: rgba(255, 255, 255, 0.8);
    margin-top: 12px;
}

.district-tags {
    margin-top: 32px;
    gap: 12px;
}

.tag {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    padding: 10px 24px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.tag:hover {
    background: var(--secondary-color);
    color: var(--dark-blue);
    border-color: var(--secondary-color);
    transform: translateY(-2px);
}

/* FAQ */
.faq {
    background: var(--bg-white);
}

.faq-container {
    max-width: 800px;
    margin: 48px auto 0;
}

.faq-item {
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    background: white;
}

.faq-question {
    padding: 20px 24px;
    font-weight: 700;
    color: var(--dark-blue);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.faq-question i {
    transition: var(--transition);
    color: var(--primary-color);
}

.faq-answer {
    padding: 0 24px 24px;
    color: var(--text-muted);
    display: none;
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    display: block;
    animation: fadeIn 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Brands */
.brands {
    padding: 64px 0;
    background: var(--bg-white);
}

.brand-grid {
    gap: 16px;
    margin-top: 40px;
}

.brand-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 140px;
    height: 120px;
    background: var(--bg-light);
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
}

.brand-box i {
    font-size: 2rem;
    color: #CBD5E0;
    margin-bottom: 8px;
    transition: var(--transition);
}

.brand-box span {
    font-weight: 700;
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: var(--transition);
}

.brand-box:hover {
    background: white;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-premium);
    transform: translateY(-4px);
}

.brand-box:hover i,
.brand-box:hover span {
    color: var(--primary-color);
}

/* Footer */
footer {
    padding: 80px 0 32px;
    background: #020A13;
    color: #A2A9B0;
}

.footer-top {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 48px;
    margin-bottom: 32px;
}

.footer-col h4 {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 12px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 48px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

.footer-desc {
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-contact-list li {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.footer-contact-list i {
    width: 44px;
    height: 44px;
    background: rgba(15, 98, 254, 0.12);
    color: var(--primary-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

.footer-contact-list span {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
    font-weight: 600;
}

.footer-contact-list a,
.footer-contact-list p {
    color: white;
    font-weight: 700;
    font-size: 1.05rem;
}

.footer-bottom {
    font-size: 0.85rem;
    color: #525252;
    padding-top: 24px;
}

/* Floating Buttons */
.floating-contact {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.float-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    animation: pulse 2.5s infinite;
    transition: var(--transition);
}

.float-btn:hover {
    transform: scale(1.1);
}

.float-whatsapp {
    background: #25D366;
}

.float-phone {
    background: var(--primary-color);
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    }

    50% {
        transform: scale(1.05);
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
    }
}

/* Mobile Menu */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-white);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    visibility: hidden;
}

.mobile-menu-overlay.open {
    transform: translateX(0);
    visibility: visible;
}

.mobile-menu-content {
    text-align: center;
    position: relative;
    width: 100%;
    padding: 40px 20px;
}

.mobile-menu-content li {
    margin: 24px 0;
}

.mobile-menu-content a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-blue);
}

.close-menu {
    position: absolute;
    top: -80px;
    right: 32px;
    font-size: 2rem;
    color: var(--dark-blue);
    cursor: pointer;
}

/* Responsive Design - Mobile First */
@media (max-width: 992px) {
    :root {
        font-size: 15px;
    }

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero {
        text-align: center;
        padding: 60px 0;
    }

    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-btns {
        justify-content: center;
    }

    .nav-links {
        display: none;
    }

    .mobile-toggle {
        display: block;
    }

    .about-image {
        order: -1;
    }

    .about-content {
        text-align: center;
    }

    .stats {
        justify-content: center;
    }

    .footer-col {
        grid-column: span 3 !important;
        text-align: center;
    }

    .footer-col h4::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .footer-social {
        justify-content: center;
    }

    .footer-contact-list li {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }

    .section-title h2 {
        font-size: 2rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .service-card {
        max-width: 480px;
        margin: 0 auto;
    }

    .brand-grid {
        gap: 12px;
    }

    .brand-box {
        width: 120px;
        height: 100px;
    }
}

@media (max-width: 576px) {
    .upper-bar {
        display: none;
    }

    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 48px 0;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero-btns {
        flex-direction: column;
        width: 100%;
    }

    .hero-btns .btn-primary,
    .hero-btns .btn-secondary {
        width: 100%;
        justify-content: center;
        padding: 14px 24px;
        font-size: 0.95rem;
    }

    .floating-contact {
        bottom: 20px;
        right: 20px;
        gap: 12px;
    }

    .float-btn {
        width: 52px;
        height: 52px;
        font-size: 24px;
    }

    .district-tags {
        gap: 8px;
    }

    .tag {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    .faq-question {
        font-size: 0.95rem;
        padding: 16px 20px;
    }

    .faq-answer {
        padding: 0 20px 20px;
    }
}