/* =============================================
   KONAK TÜP SU - Premium CSS
   ============================================= */

:root {
    --primary: #1a3a6b;
    --primary-dark: #0f2347;
    --primary-light: #2a5298;
    --accent: #ff6b00;
    --accent-dark: #e05500;
    --whatsapp: #25d366;
    --whatsapp-dark: #1da851;
    --water: #0099cc;
    --water-dark: #007aaa;
    --white: #ffffff;
    --light: #f8fafc;
    --gray: #6b7280;
    --dark: #111827;
    --border: #e5e7eb;
    --shadow: 0 4px 20px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: 'Poppins', sans-serif;
    color: var(--dark);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }

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

/* =============================================
   FLOATING BUTTONS
   ============================================= */
.floating-buttons {
    position: fixed;
    bottom: 30px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.float-btn {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    transition: var(--transition);
    animation: pulse 2s infinite;
}
.float-btn:hover { transform: scale(1.1); }
.call-btn { background: var(--accent); animation-delay: 0.5s; }
.whatsapp-btn { background: var(--whatsapp); }
@keyframes pulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(0,0,0,0.3); }
    50% { box-shadow: 0 4px 30px rgba(37,211,102,0.5); }
}

/* =============================================
   HEADER / NAVBAR
   ============================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
    background: transparent;
}
.header.scrolled {
    background: rgba(10, 25, 60, 0.97);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 30px rgba(0,0,0,0.3);
}
.navbar { padding: 0; }
.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    gap: 20px;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}
.logo-icon {
    display: flex;
    gap: 2px;
    font-size: 20px;
}
.logo-icon .fa-fire { color: var(--accent); }
.logo-icon .fa-tint { color: #4fc3f7; }
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-main {
    font-family: 'Oswald', sans-serif;
    font-size: 24px;
    font-weight: 700;
    color: white;
    letter-spacing: 2px;
}
.logo-sub {
    font-size: 10px;
    font-weight: 500;
    color: #4fc3f7;
    letter-spacing: 3px;
    text-transform: uppercase;
}

/* Nav Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 5px;
}
.nav-menu a {
    color: rgba(255,255,255,0.9);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 8px;
    transition: var(--transition);
}
.nav-menu a:hover {
    color: white;
    background: rgba(255,255,255,0.1);
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 4px;
}
.lang-btn {
    padding: 5px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    color: rgba(255,255,255,0.7);
    transition: var(--transition);
    cursor: pointer;
}
.lang-btn:hover, .lang-btn.active {
    background: var(--accent);
    color: white;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}
.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    background: white;
    border-radius: 2px;
    transition: var(--transition);
}

/* =============================================
   HERO SECTION
   ============================================= */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,25,60,0.88) 0%, rgba(10,25,60,0.65) 50%, rgba(10,25,60,0.80) 100%);
}
.hero .container { position: relative; z-index: 1; }
.hero-content {
    max-width: 700px;
    padding: 120px 0 60px;
}
.hero-badge {
    display: inline-block;
    background: rgba(255,107,0,0.2);
    border: 1px solid rgba(255,107,0,0.4);
    color: #ffb347;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}
.hero-title {
    font-family: 'Oswald', sans-serif;
    font-size: clamp(36px, 6vw, 68px);
    font-weight: 700;
    color: white;
    line-height: 1.1;
    margin-bottom: 20px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero-title .highlight {
    background: linear-gradient(135deg, #ff6b00, #4fc3f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: clamp(16px, 2vw, 20px);
    color: rgba(255,255,255,0.85);
    margin-bottom: 35px;
    max-width: 500px;
}
.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    white-space: nowrap;
}
.btn-lg { padding: 16px 36px; font-size: 17px; }
.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: white;
    box-shadow: 0 4px 20px rgba(255,107,0,0.4);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255,107,0,0.5);
    color: white;
}
.btn-whatsapp {
    background: linear-gradient(135deg, var(--whatsapp), var(--whatsapp-dark));
    color: white;
    box-shadow: 0 4px 20px rgba(37,211,102,0.4);
}
.btn-whatsapp:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(37,211,102,0.5);
    color: white;
}
.btn-order {
    background: linear-gradient(135deg, var(--whatsapp), var(--whatsapp-dark));
    color: white;
    padding: 10px 20px;
    font-size: 13px;
    border-radius: 50px;
    width: 100%;
    justify-content: center;
    margin-top: auto;
}
.btn-order.btn-water {
    background: linear-gradient(135deg, var(--water), var(--water-dark));
}
.btn-order:hover { transform: translateY(-1px); color: white; }
.btn-full { width: 100%; justify-content: center; }

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    gap: 30px;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 16px;
    padding: 20px 30px;
    width: fit-content;
}
.stat-item { text-align: center; }
.stat-number {
    display: block;
    font-family: 'Oswald', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: white;
    line-height: 1;
}
.stat-label {
    font-size: 11px;
    color: rgba(255,255,255,0.7);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.2);
}

/* Hero Scroll */
.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}
.hero-scroll a {
    color: rgba(255,255,255,0.6);
    font-size: 20px;
    animation: bounce 2s infinite;
}
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* =============================================
   SECTION HEADERS
   ============================================= */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}
.section-header.left { text-align: left; }
.section-header h2 {
    font-family: 'Oswald', sans-serif;
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    position: relative;
}
.section-header h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--accent), var(--water));
    border-radius: 2px;
    margin: 10px auto 0;
}
.section-header.left h2::after { margin: 10px 0 0; }
.section-header p {
    color: var(--gray);
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
}

/* =============================================
   PRODUCTS SECTION
   ============================================= */
.products {
    padding: 80px 0;
    background: var(--light);
}
.products-category {
    margin-bottom: 60px;
}
.category-header {
    display: flex;
    align-items: center;
    gap: 20px;
    background: white;
    border-radius: var(--radius-lg);
    padding: 25px 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    overflow: hidden;
    position: relative;
}
.gas-header { border-left: 5px solid var(--accent); }
.water-header { border-left: 5px solid var(--water); }
.category-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--accent), #ff9500);
    color: white;
}
.water-icon { background: linear-gradient(135deg, var(--water), #00c6ff); }
.category-header h3 {
    font-family: 'Oswald', sans-serif;
    font-size: 26px;
    color: var(--primary);
}
.category-header p { color: var(--gray); font-size: 14px; }
.category-img {
    height: 100px;
    width: auto;
    object-fit: contain;
    margin-left: auto;
    opacity: 0.9;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}
.product-card {
    background: white;
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    border-top: 3px solid transparent;
}
.gas-card { border-top-color: var(--accent); }
.water-card { border-top-color: var(--water); }
.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}
.product-icon {
    width: 55px;
    height: 55px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 15px;
    color: white;
}
.product-icon.orange { background: linear-gradient(135deg, #ff6b00, #ff9500); }
.product-icon.red { background: linear-gradient(135deg, #e53e3e, #fc8181); }
.product-icon.yellow { background: linear-gradient(135deg, #d69e2e, #f6e05e); }
.product-icon.gray { background: linear-gradient(135deg, #4a5568, #718096); }
.product-icon.blue { background: linear-gradient(135deg, #2b6cb0, #4299e1); }
.product-icon.green { background: linear-gradient(135deg, #276749, #48bb78); }
.product-icon.cyan { background: linear-gradient(135deg, #00b4d8, #90e0ef); }
.product-icon.light-blue { background: linear-gradient(135deg, #0077b6, #00b4d8); }
.product-icon.sky { background: linear-gradient(135deg, #48cae4, #90e0ef); }
.product-icon.teal { background: linear-gradient(135deg, #0f766e, #14b8a6); }
.product-icon.navy { background: linear-gradient(135deg, #1e3a5f, #2a5298); }
.product-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}
.product-card p {
    font-size: 13px;
    color: var(--gray);
    margin-bottom: 20px;
    flex-grow: 1;
}

/* =============================================
   BRANDS SECTION
   ============================================= */
.brands {
    padding: 70px 0;
    background: var(--primary-dark);
    overflow: hidden;
}
.brands-group { margin-bottom: 40px; }
.brands-group:last-child { margin-bottom: 0; }
.brands-title {
    font-family: 'Oswald', sans-serif;
    font-size: 22px;
    color: white;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.brands-title .fa-fire { color: var(--accent); }
.brands-title .fa-tint { color: #4fc3f7; }
.brands-scroll {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.brand-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    cursor: default;
}
.gas-badge {
    background: rgba(255,107,0,0.15);
    border: 1px solid rgba(255,107,0,0.3);
    color: #ffb347;
}
.gas-badge:hover {
    background: rgba(255,107,0,0.25);
    transform: translateY(-2px);
}
.water-badge {
    background: rgba(79,195,247,0.15);
    border: 1px solid rgba(79,195,247,0.3);
    color: #4fc3f7;
}
.water-badge:hover {
    background: rgba(79,195,247,0.25);
    transform: translateY(-2px);
}

/* =============================================
   ABOUT SECTION
   ============================================= */
.about {
    padding: 80px 0;
    background: white;
}
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-image {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}
.about-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: white;
    border-radius: 12px;
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
}
.about-badge .fa-star { color: #f59e0b; font-size: 24px; }
.about-badge strong { font-size: 22px; font-weight: 800; color: var(--primary); display: block; line-height: 1; }
.about-badge span { font-size: 11px; color: var(--gray); }
.about-content p {
    color: var(--gray);
    margin-bottom: 15px;
    font-size: 15px;
    line-height: 1.8;
}
.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin: 25px 0;
}
.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--light);
    padding: 12px 15px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
}
.feature-item i { color: var(--accent); font-size: 16px; }
.about-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 20px;
}

/* =============================================
   CONTACT SECTION
   ============================================= */
.contact {
    padding: 80px 0;
    background: var(--light);
}
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    align-items: start;
}
.contact-card {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    background: white;
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.contact-card:hover { transform: translateX(5px); }
.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: white;
    flex-shrink: 0;
}
.phone-icon { background: linear-gradient(135deg, var(--accent), #ff9500); }
.address-icon { background: linear-gradient(135deg, var(--primary), var(--primary-light)); }
.hours-icon { background: linear-gradient(135deg, var(--whatsapp), var(--whatsapp-dark)); }
.contact-details h4 { font-size: 13px; color: var(--gray); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 1px; }
.contact-details a, .contact-details p {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary);
    line-height: 1.5;
}
.contact-details a:hover { color: var(--accent); }
.contact-buttons { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }
.contact-map h4 {
    font-family: 'Oswald', sans-serif;
    font-size: 20px;
    color: var(--primary);
    margin-bottom: 15px;
}
.map-container {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 15px;
}
.map-address {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--gray);
    font-size: 14px;
    background: white;
    padding: 12px 15px;
    border-radius: 10px;
}
.map-address i { color: var(--accent); margin-top: 2px; flex-shrink: 0; }

/* =============================================
   FOOTER
   ============================================= */
.footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.8);
    padding: 60px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand p {
    margin: 15px 0 20px;
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255,255,255,0.6);
}
.social-links { display: flex; gap: 10px; }
.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: var(--transition);
}
.social-link.whatsapp { background: var(--whatsapp); color: white; }
.social-link.phone { background: var(--accent); color: white; }
.social-link:hover { transform: translateY(-3px); opacity: 0.9; }
.footer-links h4, .footer-contact h4 {
    font-family: 'Oswald', sans-serif;
    font-size: 18px;
    color: white;
    margin-bottom: 20px;
}
.footer-links ul li, .footer-contact ul li {
    margin-bottom: 10px;
}
.footer-links ul li a {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    transition: var(--transition);
}
.footer-links ul li a:hover { color: var(--accent); padding-left: 5px; }
.footer-contact ul li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: rgba(255,255,255,0.6);
}
.footer-contact ul li i { color: var(--accent); margin-top: 2px; font-size: 13px; flex-shrink: 0; }
.footer-contact ul li a { color: rgba(255,255,255,0.6); }
.footer-contact ul li a:hover { color: var(--accent); }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
    flex-wrap: wrap;
    gap: 10px;
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
    .about-grid { grid-template-columns: 1fr; }
    .about-image { max-height: 350px; }
    .about-image img { height: 350px; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(10,25,60,0.98);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 15px;
        z-index: 999;
    }
    .nav-menu.open { display: flex; }
    .nav-menu a { font-size: 20px; padding: 12px 30px; }
    .hamburger { display: flex; z-index: 1000; }
    .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .hamburger.active span:nth-child(2) { opacity: 0; }
    .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
    .hero-stats { flex-wrap: wrap; gap: 15px; }
    .stat-divider { display: none; }
    .category-img { display: none; }
    .products-grid { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .hero-buttons { flex-direction: column; }
    .btn-lg { width: 100%; justify-content: center; }
    .products-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .about-buttons { flex-direction: column; }
    .lang-switcher { display: none; }
}

/* =============================================
   ANIMATIONS
   ============================================= */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }