/* 
   Kuzey Ege Nakliyat - Premium Design System 
   Font: Manrope
*/

:root {
    --primary-color: #0F172A;
    /* Deep Navy - Trust, Professionalism */
    --secondary-color: #F59E0B;
    /* Amber/Orange - Energy, Action */
    --accent-color: #3B82F6;
    /* Bright Blue - Modernity */
    --text-dark: #1E293B;
    --text-light: #64748B;
    --white: #FFFFFF;
    --bg-light: #F8FAFC;
    --border-color: #E2E8F0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --font-heading: 'Manrope', sans-serif;
    --font-body: 'Manrope', sans-serif;
    --container-width: 1200px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-color);
}

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

.text-primary {
    color: var(--primary-color);
}

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

.text-white {
    color: var(--white);
}

/* Layout Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.grid {
    display: grid;
    gap: 30px;
}

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

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

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.flex {
    display: flex;
    gap: 20px;
}

.flex-column {
    flex-direction: column;
}

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

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

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

/* Buttons & CTA */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background-color: #D97706;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: transparent;
    color: var(--white);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
}

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

.btn-whatsapp {
    background-color: #25D366;
    color: white;
}

.btn-whatsapp:hover {
    background-color: #128C7E;
}

/* Header & Nav */
header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 10px 0;
    font-size: 0.9rem;
}

.header-top a:hover {
    color: var(--secondary-color);
}

.header-main {
    padding: 20px 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

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

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-weight: 600;
    color: var(--text-dark);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--secondary-color);
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(15, 23, 42, 0.8), rgba(15, 23, 42, 0.8)), url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding: 120px 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 40px;
    color: #CBD5E1;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Services Grid */
.service-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary-color);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.service-link {
    font-weight: 600;
    color: var(--primary-color);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.service-link:hover {
    color: var(--secondary-color);
}

/* Features / Why Us */
.feature-box {
    text-align: center;
    padding: 20px;
}

.feature-box i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
    background: rgba(245, 158, 11, 0.1);
    width: 60px;
    height: 60px;
    line-height: 60px;
    border-radius: 50%;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: #94A3B8;
    padding: 60px 0 20px;
}

.footer-column h4 {
    color: var(--white);
    margin-bottom: 25px;
    font-size: 1.2rem;
}

.footer-links li {
    margin-bottom: 12px;
}

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

.copyright {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid #1E293B;
    text-align: center;
    font-size: 0.9rem;
}

/* Mobile Sticky CTA */
.mobile-bottom-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--white);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 2000;
    padding: 10px 15px;
    gap: 10px;
}

.mobile-bottom-bar a {
    flex: 1;
    text-align: center;
    padding: 12px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.sticky-call {
    background: var(--primary-color);
    color: var(--white);
}

.sticky-whatsapp {
    background: #25D366;
    color: white;
}

/* Accordion Styles */
.accordion {
    width: 100%;
    margin-top: 20px;
}

.accordion-item {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 10px;
    overflow: hidden;
}

.accordion-header {
    background: var(--white);
    padding: 15px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--primary-color);
    transition: background-color 0.3s;
}

.accordion-header:hover {
    background-color: var(--bg-light);
}

.accordion-content {
    display: none;
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

.accordion-item.active .accordion-content {
    display: block;
}

.accordion-icon {
    transition: transform 0.3s;
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
}

/* Clickable Card Utility */
.service-card {
    position: relative;
    /* For stretched link */
    display: flex;
    flex-direction: column;
    height: 100%;
}

.stretched-link::after {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1;
    content: "";
}

/* Header Adjustments */
.contact-info a {
    font-size: 1.1rem;
    /* +10% increase */
    font-weight: 700;
}

/* Button Sizing */
.btn-lg {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.btn-whatsapp-lg {
    font-size: 1.2rem;
    /* +10% relative to normal */
    padding: 18px 36px;
}

/* Responsive */
@media (max-width: 992px) {

    .grid-4,
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .header-top {
        display: none;
    }

    .nav-links {
        display: none;
        /* Hide for now, JS will toggle */
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .mobile-bottom-bar {
        display: flex;
    }

    body {
        padding-bottom: 70px;
        /* Space for sticky bar */
    }

    .hero {
        padding: 80px 0;
    }

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