/* ============================================
   UMUT KÖPRÜSÜ - ANA STIL DOSYASI
   Çocuk Hakları Temelli Dayanışma Modeli
   ============================================ */

/* CSS Variables */
:root {
    /* Ana Renkler */
    --color-primary: #1a365d;
    --color-primary-light: #2c5282;
    --color-primary-dark: #0f2440;
    
    --color-accent: #319795;
    --color-accent-light: #4fd1c5;
    --color-accent-dark: #285e61;
    
    /* Nötr Tonlar */
    --color-white: #ffffff;
    --color-bg: #f7fafc;
    --color-bg-alt: #edf2f7;
    --color-gray-100: #f7fafc;
    --color-gray-200: #edf2f7;
    --color-gray-300: #e2e8f0;
    --color-gray-400: #cbd5e0;
    --color-gray-500: #a0aec0;
    --color-gray-600: #718096;
    --color-gray-700: #4a5568;
    --color-gray-800: #2d3748;
    --color-gray-900: #1a202c;
    
    /* Aksan Renkler */
    --color-gold: #d69e2e;
    --color-green: #38a169;
    --color-burgundy: #742a2a;
    
    /* Tipografi */
    --font-heading: 'Crimson Pro', Georgia, serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Boyutlar */
    --container-max: 1200px;
    --container-padding: 1.5rem;
    
    /* Geçişler */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Gölgeler */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-gray-800);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--color-accent-dark);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    padding: 1rem 0;
    transition: all var(--transition-base);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    color: var(--color-accent);
    font-size: 1.75rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--color-gray-700);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.btn-nav {
    background: var(--color-accent);
    color: var(--color-white) !important;
    padding: 0.6rem 1.25rem !important;
    border-radius: var(--radius-full);
}

.btn-nav::after {
    display: none !important;
}

.btn-nav:hover {
    background: var(--color-accent-dark);
    color: var(--color-white) !important;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: all var(--transition-fast);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, var(--color-accent-dark) 100%);
    opacity: 0.03;
    pointer-events: none;
    z-index: 0;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(circle, var(--color-accent) 0%, transparent 70%);
    opacity: 0.08;
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-tagline {
    color: var(--color-accent);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
}

.hero-title .highlight {
    color: var(--color-accent);
    position: relative;
}

.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 0.1em;
    left: 0;
    right: 0;
    height: 0.15em;
    background: var(--color-gold);
    opacity: 0.4;
    z-index: -1;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-gray-600);
    margin-bottom: 2rem;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-circle {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.hero-circle::before {
    content: '';
    position: absolute;
    inset: -20px;
    border-radius: 50%;
    border: 2px dashed var(--color-accent);
    opacity: 0.3;
    animation: rotate 30s linear infinite;
}

.hero-icon {
    color: var(--color-white);
    width: 150px;
    height: 150px;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

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

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

.btn-secondary {
    background: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-gray-300);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.btn-outline:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

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

.btn-light:hover {
    background: var(--color-gray-100);
    color: var(--color-primary);
}

.btn-ghost {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
    color: var(--color-white);
}

/* ============================================
   MISSION SECTION
   ============================================ */

.mission {
    padding: 5rem 0;
    background: var(--color-bg);
}

.mission-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: 3rem 4rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.mission-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-gold));
    border-radius: var(--radius-full);
}

.mission-card h2 {
    margin-bottom: 1.5rem;
    color: var(--color-primary);
}

.mission-card p {
    font-size: 1.125rem;
    color: var(--color-gray-700);
    line-height: 1.8;
}

/* ============================================
   HOW IT WORKS SECTION
   ============================================ */

.how-it-works {
    padding: 6rem 0;
    text-align: center;
}

.section-title {
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--color-gray-600);
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

.process-steps {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 0;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    max-width: 280px;
    padding: 2rem;
    position: relative;
}

.step-number {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 36px;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}

.step-icon {
    width: 80px;
    height: 80px;
    margin: 2rem auto 1.5rem;
    background: var(--color-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
}

.step-icon svg {
    width: 36px;
    height: 36px;
}

.step h3 {
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.step p {
    color: var(--color-gray-600);
    font-size: 0.95rem;
}

.step-connector {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-gray-300));
    margin-top: 5rem;
    align-self: center;
}

/* ============================================
   COUNTER SECTION
   ============================================ */

.counter-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.counter-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    text-align: center;
}

.counter-item {
    padding: 2rem;
}

.counter-value {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-accent-light);
}

.currency {
    font-size: 0.6em;
    opacity: 0.8;
}

.counter-label {
    font-size: 1rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.counter-note {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.875rem;
    opacity: 0.7;
}

/* ============================================
   PARTNERSHIP SECTION
   ============================================ */

.partnership {
    padding: 6rem 0;
    background: var(--color-bg);
}

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

.partnership-text h2 {
    margin-bottom: 1.5rem;
}

.partnership-text p {
    font-size: 1.125rem;
    color: var(--color-gray-700);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.partner-badge {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: 3rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
    border-top: 4px solid var(--color-burgundy);
}

.partner-text {
    display: block;
    font-size: 0.875rem;
    color: var(--color-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.partner-name {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-burgundy);
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.partner-year {
    display: block;
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

/* ============================================
   UPDATES SECTION
   ============================================ */

.updates {
    padding: 6rem 0;
}

.updates-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.update-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

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

.update-date {
    font-size: 0.875rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.update-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    color: var(--color-primary);
}

.update-card p {
    font-size: 0.95rem;
    color: var(--color-gray-600);
    margin-bottom: 1rem;
}

.update-link {
    font-weight: 600;
    font-size: 0.95rem;
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--color-accent-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
    text-align: center;
}

.cta-content h2 {
    color: var(--color-white);
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-400);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--color-gray-800);
}

.footer-brand .logo {
    color: var(--color-white);
    margin-bottom: 1rem;
}

.footer-brand p {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    max-width: 280px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--color-gray-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
    transition: all var(--transition-base);
}

.social-links a:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

.social-links svg {
    width: 18px;
    height: 18px;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--color-gray-400);
    font-size: 0.95rem;
}

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

.footer-contact p {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.footer-bottom {
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

.disclaimer {
    color: var(--color-gray-600);
    font-style: italic;
}

/* ============================================
   PAGE SPECIFIC STYLES
   ============================================ */

/* Page Header */
.page-header {
    padding: 10rem 0 4rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    text-align: center;
}

.page-header h1 {
    color: var(--color-white);
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Content Section */
.content-section {
    padding: 5rem 0;
}

.content-section:nth-child(even) {
    background: var(--color-bg);
}

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

.card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

/* Accordion */
.accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    background: var(--color-white);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    border: 1px solid var(--color-gray-200);
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: 1.25rem 1.5rem;
    background: none;
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-fast);
}

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

.accordion-content {
    padding: 0 1.5rem 1.25rem;
    color: var(--color-gray-700);
    line-height: 1.7;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-gray-700);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    font-family: var(--font-body);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    background: var(--color-white);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(49, 151, 149, 0.1);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-description {
        margin: 0 auto 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-circle {
        width: 280px;
        height: 280px;
        margin-top: 3rem;
    }
    
    .partnership-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .process-steps {
        flex-direction: column;
        align-items: center;
    }
    
    .step-connector {
        width: 2px;
        height: 40px;
        margin: 0;
        background: linear-gradient(180deg, var(--color-accent), var(--color-gray-300));
    }
    
    .counter-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .updates-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand p {
        max-width: none;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .mission-card {
        padding: 2rem;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Staggered animations */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.py-1 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-2 { padding-top: 1rem; padding-bottom: 1rem; }
.py-3 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-4 { padding-top: 2rem; padding-bottom: 2rem; }
.py-5 { padding-top: 3rem; padding-bottom: 3rem; }