/* Modern Color Palette & Variables */
:root {
    --primary-color: #007CC3;
    /* Clean Blue */
    --secondary-color: #7AC142;
    /* Nature Green */
    --accent-color: #004d7a;
    /* Darker Blue */
    --background-dark: #0f172a;
    --background-light: #ffffff;
    --text-dark: #1e293b;
    --text-light: #f8fafc;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.1);
    --font-main: 'Inter', sans-serif;
    --transition-speed: 0.3s;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--background-light);
}

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

ul {
    list-style: none;
}

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

/* Typography */
h1,
h2,
h3,
h4 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

section {
    padding: 5rem 2rem;
    position: relative;
    overflow: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--accent-color);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--secondary-color);
    margin: 0.5rem auto 0;
    border-radius: 2px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    padding: 0.6rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

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

.logo img {
    height: 50px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-item {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

.nav-link {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.85rem;
    position: relative;
    padding: 0.5rem 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s;
}

.nav-link:hover::after {
    width: 100%;
}

/* Dropdown Menu Styles */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 280px;
    box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.15);
    border-radius: 0.5rem;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    z-index: 1100;
    border: 1px solid #f1f5f9;
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    position: relative;
}

.dropdown-link {
    display: block;
    width: 100%;
    padding: 0.75rem 1.5rem;
    color: var(--text-dark);
    font-size: 0.8rem;
    font-weight: 500;
    transition: background 0.2s, color 0.2s, padding-left 0.2s;
    text-transform: uppercase;
    border-bottom: 1px solid #f8fafc;
}

.dropdown-link:hover {
    background-color: #f0f9ff;
    color: var(--primary-color);
    padding-left: 1.75rem;
}

/* Submenu (Nested Dropdowns) */
.has-submenu>.dropdown-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.has-submenu>.dropdown-link::after {
    content: '\f054';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.7rem;
    opacity: 0.5;
}

.submenu {
    position: absolute;
    left: 100%;
    top: 0;
    background: white;
    min-width: 280px;
    box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.15);
    border-radius: 0.5rem;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    z-index: 1101;
    border: 1px solid #f1f5f9;
}

.dropdown-item:hover>.submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* Language Switcher */
.lang-switcher {
    position: relative;
    margin-left: 1rem;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 2rem;
    background: white;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s;
}

.lang-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.lang-dropdown {
    position: absolute;
    top: 120%;
    right: 0;
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    min-width: 140px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s;
    overflow: hidden;
    z-index: 1200;
}

.lang-switcher:hover .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 0.9rem;
}

.lang-option:hover {
    background: #f0f9ff;
}

.mobile-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 600px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    margin-top: 0;
    padding: 0;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 77, 122, 0.7), rgba(0, 0, 0, 0.5));
    z-index: 1;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.slide.active {
    opacity: 1;
}

.hero-content {
    z-index: 2;
    max-width: 800px;
    padding: 0 1rem;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    font-weight: 300;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn-cta {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--secondary-color);
    color: white;
    border-radius: 3rem;
    font-weight: 600;
    font-size: 1rem;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
    border: none;
    cursor: pointer;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    background: #6ab035;
}

/* Group Companies Section */
.group-companies {
    background: var(--primary-color);
    color: white;
    padding: 4rem 2rem;
}

.group-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 3rem;
    align-items: center;
}

.group-text h2 {
    color: white;
}

.group-text h2::after {
    background: rgba(255, 255, 255, 0.5);
}

.group-text p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.05rem;
    margin-bottom: 1rem;
}

.group-logo {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 2rem;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.group-logo img {
    max-width: 200px;
    filter: brightness(0) invert(1);
}

/* About Section */
.about-section {
    background: #f8fafc;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    color: #475569;
}

.about-image {
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.about-image img {
    transition: transform 0.5s;
    width: 100%;
    height: auto;
}

.about-image:hover img {
    transform: scale(1.05);
}

/* Benefits Section */
.benefits {
    background: white;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background: #f8fafc;
    padding: 2.5rem;
    border-radius: 1rem;
    text-align: center;
    transition: all 0.3s;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    border: 1px solid transparent;
    text-decoration: none;
    color: inherit;
    display: block;
}

.benefit-card:hover {
    transform: translateY(-10px);
    border-color: var(--secondary-color);
    box-shadow: var(--card-shadow);
    background: white;
}

.benefit-icon {
    width: 80px;
    height: 80px;
    background: rgba(0, 124, 195, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--primary-color);
    font-size: 2rem;
}

.benefit-card h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Activities/News */
.activities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.activity-card {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all 0.3s;
    border: 1px solid #f1f5f9;
    text-decoration: none;
    color: inherit;
    display: block;
    cursor: pointer;
}

.activity-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.15);
}

.activity-image-wrapper {
    overflow: hidden;
}

.activity-img {
    height: 220px;
    width: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.activity-card:hover .activity-img {
    transform: scale(1.1);
}

.activity-content {
    padding: 1.5rem;
}

.activity-date {
    color: var(--secondary-color);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: block;
}

.activity-content h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
    line-height: 1.4;
}

/* Güriş Corporate Banner */
.guris-banner {
    padding: 0;
    overflow: hidden;
}

.guris-banner .banner-overlay {
    background-image: url('images/img-bg.png');
    background-size: cover;
    background-position: center;
    min-height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.guris-banner .banner-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.15);
}

.guris-slogan-img {
    position: relative;
    z-index: 1;
    max-width: 300px;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

/* Grievance Section */
.grievance-section {
    background: #f0f9ff;
}

.grievance-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.grievance-info p {
    font-size: 1.1rem;
    color: #475569;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.grievance-contact {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.grievance-contact .contact-item {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 1.05rem;
}

.grievance-contact .contact-item i {
    color: var(--primary-color);
}

/* Contact Footer */
.footer {
    background: var(--background-dark);
    color: white;
    padding-top: 5rem;
    padding-bottom: 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-info h3 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.footer-logo {
    margin-bottom: 1.5rem;
    max-height: 60px;
    filter: brightness(0) invert(1);
}

.company-name {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.8rem;
    color: #cbd5e1;
}

.contact-item i {
    color: var(--primary-color);
    margin-top: 0.3rem;
    min-width: 16px;
}

.map-container {
    height: 350px;
    background: #334155;
    border-radius: 1rem;
    overflow: hidden;
}

.map-iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

/* Social Media */
.social-media {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #cbd5e1;
    font-size: 1.1rem;
    transition: all 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    border-color: var(--primary-color);
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: #94a3b8;
}

/* Scroll to Top */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 45px;
    height: 45px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0, 124, 195, 0.4);
    z-index: 900;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
}

/* Mobile Responsive */
@media (max-width: 968px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

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

    .group-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .group-logo {
        display: flex;
        justify-content: center;
    }

    .mobile-toggle {
        display: block;
        color: var(--accent-color);
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 400px;
        height: 100vh;
        background: white;
        flex-direction: column;
        justify-content: flex-start;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        padding: 5rem 2rem 2rem 2rem;
        overflow-y: auto;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-item {
        display: block;
        width: 100%;
        height: auto;
        margin-bottom: 0.5rem;
    }

    .nav-link {
        font-size: 1rem;
        display: block;
        width: 100%;
        padding: 0.75rem 0;
    }

    .dropdown-menu,
    .submenu {
        position: static;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        padding-left: 1rem;
        min-width: 100%;
        border-left: 2px solid #e2e8f0;
        display: none;
    }

    .nav-item:hover .dropdown-menu,
    .dropdown-item:hover>.submenu {
        display: block;
    }

    .has-submenu>.dropdown-link::after {
        transform: rotate(90deg);
    }

    .lang-switcher {
        margin: 1.5rem 0;
    }

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

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

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

    .grievance-contact {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }

    .guris-slogan-img {
        max-width: 200px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    section {
        padding: 3rem 1rem;
    }

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

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* Scroll Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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