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

:root {
    --primary: #0f2b46;
    --primary-mid: #164470;
    --primary-light: #1d5a94;
    --accent: #c9953c;
    --accent-light: #e8c06a;
    --bg: #ffffff;
    --bg-alt: #f6f8fb;
    --bg-dark: #0a1929;
    --text: #1a2b3c;
    --text-mid: #4a5e73;
    --text-light: #7b8ea1;
    --text-white: #ffffff;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 16px 48px rgba(0,0,0,0.1);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    line-height: 1.75;
    background: var(--bg);
    overflow-x: hidden;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
    font-family: 'Poppins', -apple-system, sans-serif;
    line-height: 1.25;
    font-weight: 600;
    color: var(--text);
}

a {
    text-decoration: none;
    color: inherit;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 28px;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 var(--border);
    padding: 10px 0;
}

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

.nav-logo img {
    height: 48px;
    transition: var(--transition);
}

.navbar.scrolled .nav-logo img {
    height: 38px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 4px;
}

.nav-menu a {
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.92rem;
    color: rgba(255,255,255,0.9);
    transition: var(--transition);
    letter-spacing: 0.01em;
}

.navbar.scrolled .nav-menu a {
    color: var(--text-mid);
}

.nav-menu a:hover {
    background: rgba(255,255,255,0.15);
    color: var(--text-white);
}

.navbar.scrolled .nav-menu a:hover {
    background: var(--bg-alt);
    color: var(--primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-white);
    transition: var(--transition);
    border-radius: 1px;
}

.navbar.scrolled .nav-toggle span {
    background: var(--text);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    color: var(--text-white);
    overflow: hidden;
}

.hero-bg-image {
    position: absolute;
    inset: 0;
    background: url('../images/homebg.png') center center / cover no-repeat;
    transform: scale(1.05);
    animation: heroZoom 25s ease-in-out infinite alternate;
}

@keyframes heroZoom {
    0% { transform: scale(1.05); }
    100% { transform: scale(1.15); }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, rgba(10,25,41,0.88) 0%, rgba(15,43,70,0.75) 40%, rgba(10,25,41,0.65) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 180px 28px 100px;
    width: 100%;
    max-width: 750px;
}

.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.18);
    padding: 10px 24px;
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.85);
    backdrop-filter: blur(10px);
    margin-bottom: 28px;
}

.hero-title {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(2.6rem, 6vw, 4.2rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    color: var(--text-white);
    text-shadow: 0 2px 40px rgba(0,0,0,0.3);
}

.hero-title span {
    color: var(--accent-light);
}

.hero-slogan {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-weight: 300;
    font-style: italic;
    color: rgba(255,255,255,0.65);
    margin-bottom: 20px;
    letter-spacing: 0.02em;
}

.hero-sub {
    font-size: clamp(0.95rem, 1.6vw, 1.05rem);
    color: rgba(255,255,255,0.55);
    font-weight: 400;
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 15px 32px;
    border-radius: 12px;
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-dark);
}

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(201,149,60,0.3);
}

.btn-glass {
    background: rgba(255,255,255,0.1);
    color: var(--text-white);
    border: 1px solid rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
}

.btn-glass:hover {
    background: rgba(255,255,255,0.18);
    border-color: rgba(255,255,255,0.35);
    transform: translateY(-2px);
}

/* Hero bottom removed - airlines moved to about */

/* ===== Sections ===== */
.section {
    padding: 110px 0;
}

.section-alt {
    background: var(--bg-alt);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 12px;
}

.section-title {
    text-align: center;
    font-family: 'Poppins', sans-serif;
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0;
    letter-spacing: -0.02em;
}

.section-title::after {
    content: '';
    display: block;
    width: 48px;
    height: 3px;
    background: var(--accent);
    margin: 20px auto 0;
    border-radius: 2px;
}

/* ===== About ===== */
.about-layout {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.about-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.about-card {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 28px 24px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.about-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}

.about-card-icon {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--bg-alt), #eef2f7);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-mid);
}

.about-card-content {
    display: flex;
    flex-direction: column;
}

.about-card-num {
    font-family: 'Poppins', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
}

.about-card-label {
    font-size: 0.82rem;
    color: var(--text-light);
    font-weight: 500;
}

/* Havayolu Logoları - Hakkımızda */
.about-airlines {
    text-align: center;
    padding: 40px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.about-airlines h4 {
    font-family: 'Poppins', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-light);
    margin-bottom: 24px;
}

.about-airline-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.about-airline-logos img {
    height: 48px;
    transition: var(--transition);
}

.about-airline-logos img:hover {
    transform: scale(1.08);
}

.about-main {
    max-width: 100%;
}

.about-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.about-cols p {
    font-size: 0.98rem;
    color: var(--text-mid);
    line-height: 1.85;
    margin-bottom: 16px;
}

.about-cols p:last-child {
    margin-bottom: 0;
}

.about-cols strong {
    color: var(--text);
    font-weight: 600;
}

/* Grup Şirketleri */
.about-group {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
}

.about-group h4 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 24px;
    text-align: center;
}

.group-items {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.group-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px 16px;
    text-align: center;
    transition: var(--transition);
}

.group-item:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-sm);
    transform: translateY(-3px);
}

.group-item-name {
    display: block;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--primary);
    margin-bottom: 4px;
}

.group-item-desc {
    display: block;
    font-size: 0.78rem;
    color: var(--text-light);
    font-weight: 500;
}

/* ===== Services ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.service-card {
    background: var(--bg);
    border-radius: var(--radius);
    padding: 36px 24px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-mid), var(--accent));
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 18px;
    display: block;
}

.service-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 10px;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.65;
}

/* ===== Values ===== */
.values-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.values-block h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 24px;
}

.values-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    display: inline-block;
    padding: 10px 20px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--primary);
    transition: var(--transition);
}

.tag:hover {
    background: var(--primary);
    color: var(--text-white);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.values-block p {
    color: var(--text-mid);
    margin-bottom: 16px;
    font-size: 0.95rem;
    line-height: 1.8;
}

.strategy-quote {
    font-family: 'Poppins', sans-serif;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--primary);
    font-style: italic;
    margin-top: 28px;
    padding: 20px 24px;
    border-left: 3px solid var(--accent);
    background: var(--bg-alt);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ===== Contact ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
}

.contact-card {
    background: var(--bg);
    border-radius: var(--radius);
    padding: 36px 28px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.contact-card:hover {
    box-shadow: var(--shadow);
}

.contact-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 16px;
}

.contact-card p {
    color: var(--text-mid);
    font-size: 0.95rem;
    line-height: 1.8;
}

.contact-map {
    margin-top: 20px;
}

.contact-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-list li {
    font-size: 0.93rem;
    color: var(--text-mid);
}

.contact-list strong {
    color: var(--text);
    display: inline-block;
    min-width: 60px;
    font-weight: 600;
}

.contact-list a {
    color: var(--primary-mid);
    transition: var(--transition);
}

.contact-list a:hover {
    color: var(--accent);
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,0.6);
    padding: 40px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.footer-logo {
    height: 36px;
    opacity: 0.85;
    filter: brightness(0) invert(1);
}

.footer-left p {
    font-size: 0.83rem;
}

.tursab-badge {
    height: 56px;
    transition: var(--transition);
}

.tursab-link:hover .tursab-badge {
    transform: scale(1.05);
    filter: brightness(1.1);
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.service-card.reveal:nth-child(2) { transition-delay: 0.08s; }
.service-card.reveal:nth-child(3) { transition-delay: 0.16s; }
.service-card.reveal:nth-child(4) { transition-delay: 0.24s; }
.service-card.reveal:nth-child(5) { transition-delay: 0.32s; }
.service-card.reveal:nth-child(6) { transition-delay: 0.4s; }
.service-card.reveal:nth-child(7) { transition-delay: 0.48s; }
.service-card.reveal:nth-child(8) { transition-delay: 0.56s; }

.about-card.reveal:nth-child(2) { transition-delay: 0.08s; }
.about-card.reveal:nth-child(3) { transition-delay: 0.16s; }
.about-card.reveal:nth-child(4) { transition-delay: 0.24s; }

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

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

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

    .about-airline-logos img {
        height: 40px;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: var(--bg-dark);
        flex-direction: column;
        padding: 100px 28px 40px;
        transition: var(--transition);
        box-shadow: -10px 0 40px rgba(0,0,0,0.3);
    }

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

    .nav-menu a {
        color: rgba(255,255,255,0.8) !important;
        font-size: 1.05rem;
        padding: 14px 16px;
    }

    .nav-menu a:hover {
        color: var(--text-white) !important;
        background: rgba(255,255,255,0.06);
    }

    .nav-toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-content {
        padding: 130px 20px 60px;
    }

    .about-cols,
    .values-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

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

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

    .about-group {
        padding: 28px 20px;
    }

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

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

    .section {
        padding: 72px 0;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

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

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

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

    .group-items {
        grid-template-columns: 1fr;
    }

    .about-airline-logos {
        gap: 24px;
    }

    .about-airline-logos img {
        height: 36px;
    }
}