/* ----- CSS Variables for Theming ----- */
:root {
    /* Colors - Dark Mode (Default) */
    --bg-color: #0b0c10;
    --card-bg: rgba(25, 27, 34, 0.4);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #ffffff;
    --text-secondary: #a0aab2;
    --accent: #66fcf1;
    --accent-glow: rgba(102, 252, 241, 0.3);
    --nav-bg: rgba(11, 12, 16, 0.8);
    --gradient-1: #1f2833;
    --gradient-2: #0b0c10;

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing & Utilities */
    --container-width: 1200px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

[data-theme="light"] {
    /* Colors - Light Mode */
    --bg-color: #f7f9fa;
    --card-bg: rgba(255, 255, 255, 0.7);
    --card-border: rgba(0, 0, 0, 0.08);
    --text-primary: #121820;
    --text-secondary: #4a5568;
    --accent: #0076ff;
    --accent-glow: rgba(0, 118, 255, 0.2);
    --nav-bg: rgba(247, 249, 250, 0.85);
    --gradient-1: #e2e8f0;
    --gradient-2: #f7f9fa;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition), color var(--transition);
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 5%;
}

/* ----- Typography Utilities ----- */
.highlight {
    color: var(--accent);
    position: relative;
    display: inline-block;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--accent);
    border-radius: 2px;
}

/* ----- Navigation ----- */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    background: transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    background: var(--nav-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--card-border);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 2rem;
    letter-spacing: -1px;
    color: var(--text-primary);
}

.nav-logo-img {
    height: 80px;
    width: auto;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.4)) contrast(1.2);
    transition: var(--transition);
    transform: translateY(2px);
}

[data-theme="light"] .nav-logo-img {
    filter: invert(1) drop-shadow(0 0 2px rgba(0, 0, 0, 0.8));
    /* Bold and dark for light mode */
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a {
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

.nav-links a:hover {
    color: var(--accent);
}

/* Theme Toggle Button */
.theme-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
}

.theme-btn:hover {
    background-color: var(--card-border);
    color: var(--accent);
}

.theme-btn .moon-icon {
    display: none;
}

[data-theme="light"] .theme-btn .moon-icon {
    display: block;
}

[data-theme="light"] .theme-btn .sun-icon {
    display: none;
}


/* Mobile Nav Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition);
}

.mobile-nav {
    position: fixed;
    top: 70px;
    right: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--nav-bg);
    /* Use matching solid navbar background */
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    padding-bottom: 70px;
    /* Offset the top 70px to center items on true screen height */
    z-index: 999;
    transition: var(--transition);
}

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

.mobile-theme-switch {
    margin-top: 1rem;
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 12px 24px;
    border-radius: 30px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
}

[data-theme="light"] .mobile-theme-switch {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.theme-icon-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.sun-icon-m,
.moon-icon-m {
    transition: var(--transition);
}

[data-theme="dark"] .sun-icon-m {
    display: none;
}

[data-theme="light"] .moon-icon-m {
    display: none;
}

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

.mobile-nav a {
    font-size: 1.5rem;
    font-weight: 600;
    font-family: var(--font-heading);
}

/* ----- Hero Section ----- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 0 5%;
    overflow: hidden;
}

.gradient-bg {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, var(--gradient-1) 0%, var(--gradient-2) 60%);
    z-index: -1;
    animation: drift 20s linear infinite alternate;
}

@keyframes drift {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(5%, 5%);
    }
}

.hero-content {
    text-align: center;
    max-width: 800px;
    z-index: 1;
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    font-weight: 300;
}

.primary-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background-color: var(--accent);
    color: #000;
    /* Always dark text on neon button */
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-family: var(--font-body);
    box-shadow: 0 4px 15px var(--accent-glow);
    transition: var(--transition);
}

/* Adjusted for light mode primary btn text */
[data-theme="light"] .primary-btn {
    color: #fff;
}

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--accent-glow);
}

/* ----- Glassmorphism Utility ----- */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 3rem;
}

/* ----- About Section ----- */
.about-section {
    padding: 8rem 0;
}

.about-card {
    text-align: center;
    font-size: 1.15rem;
    color: var(--text-secondary);
}

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

.about-card p:not(:last-child) {
    margin-bottom: 1.5rem;
}

/* ----- Services Section ----- */
.services-section {
    padding: 5rem 0 10rem 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

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

.card-glow {
    position: absolute;
    width: 200px;
    height: 200px;
    background: var(--accent);
    filter: blur(80px);
    border-radius: 50%;
    opacity: 0;
    top: -100px;
    right: -100px;
    transition: opacity 0.5s ease;
    z-index: -1;
}

.service-card:hover .card-glow {
    opacity: 0.15;
}

.card-icon {
    width: 70px;
    height: 70px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--accent);
    transition: var(--transition);
}

[data-theme="light"] .card-icon {
    background: rgba(0, 0, 0, 0.05);
}

.service-card:hover .card-icon {
    transform: scale(1.1);
    background: var(--accent);
    color: #000;
}

[data-theme="light"] .service-card:hover .card-icon {
    color: #fff;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    flex-grow: 1;
}

.card-link {
    font-weight: 600;
    color: var(--accent);
    font-size: 0.95rem;
}

/* ----- Contact Section ----- */
.contact-section {
    padding: 5rem 0 10rem 0;
}

.contact-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    padding: 0;
    overflow: hidden;
}

.contact-info {
    padding: 4rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    grid-column: 1 / -1;
    /* Spans full width of parent card */
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info-left,
.contact-info-right {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.contact-info>p {
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.info-item svg {
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.info-item strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.info-item p,
.info-item a {
    color: var(--text-secondary);
}

.info-item a:hover {
    color: var(--accent);
}

.map-container {
    height: 100%;
    min-height: 400px;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" opacity="0.1"><rect width="100%" height="100%" fill="none" stroke="%2366fcf1" stroke-width="1" stroke-dasharray="10 10"/></svg>') center/cover;
    position: relative;
}

[data-theme="light"] .map-container {
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" opacity="0.1"><rect width="100%" height="100%" fill="none" stroke="%230076ff" stroke-width="1" stroke-dasharray="10 10"/></svg>') center/cover;
}

/* ----- Footer ----- */
footer {
    padding: 3rem 0;
    border-top: 1px solid var(--card-border);
    margin-top: auto;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
    text-align: center;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.footer-logo-img {
    height: 45px;
    /* Slightly larger */
    width: auto;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.4)) contrast(1.2);
    /* Thicker and more contrast */
    transition: var(--transition);
}

[data-theme="light"] .footer-logo-img {
    filter: invert(1) drop-shadow(0 0 2px rgba(0, 0, 0, 0.8));
    /* Bold and dark for light mode */
}

/* ----- Animations ----- */
.fade-in-up {
    animation: fadeInUp 1s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

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

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ----- Subpages Specific Styles ----- */
.subpage-hero {
    padding: 10rem 5% 5rem;
    text-align: center;
    border-bottom: 1px solid var(--card-border);
    position: relative;
    overflow: hidden;
}

.subpage-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1rem;
}

.subpage-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.subpage-content {
    padding: 5rem 0;
}

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

.content-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.content-text p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.content-text ul {
    list-style: none;
    margin-bottom: 2rem;
}

.content-text li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-secondary);
}

.content-text li::before {
    content: '✓';
    color: var(--accent);
    font-weight: bold;
}

.content-image {
    width: 100%;
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.content-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.7s ease;
}

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

/* ----- Responsive ----- */
@media (max-width: 900px) {
    .contact-box {
        grid-template-columns: 1fr;
    }

    .contact-info {
        padding: 3rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        /* Stack columns vertically on mobile */
        gap: 2rem;
    }

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

    .content-image {
        order: -1;
    }

    .map-container {
        min-height: 250px;
        border-radius: 20px;
        margin-top: 2rem;
    }
}

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

    .menu-toggle {
        display: flex;
    }

    .nav-logo-img {
        transform: translateY(12px);
        /* Mobilde logoyu biraz daha aşağı kaydırdık */
        height: 55px;
        /* Mobilde aşırı büyük durmaması için biraz küçülttük */
    }

    .menu-toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .glass-card {
        padding: 2rem;
    }

    .primary-btn {
        width: 100%;
        justify-content: center;
        padding: 0.9rem 2rem;
        font-size: 1rem;
    }

    .contact-info {
        padding: 2rem;
        gap: 1.5rem;
    }

    .contact-info h2 {
        font-size: 2rem;
    }

    .info-item {
        flex-direction: column;
        gap: 0.5rem;
    }
}