/* ========================================
   Prof. Çıtır Tavuk - Clean & Classic CSS
   ======================================== */

/* Variables */
:root {
    --primary: #E85D04;
    --primary-dark: #D64D00;
    --secondary: #9D0208;
    --dark: #1a1a1a;
    --gray-900: #222;
    --gray-700: #555;
    --gray-500: #888;
    --gray-300: #ddd;
    --gray-100: #f5f5f5;
    --white: #fff;
    --cream: #f9f7f2;
    
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius: 8px;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
}

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    max-width: 800px;
}

/* Typography */
h1, h2, h3, h4 {
    color: var(--gray-900);
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: clamp(32px, 5vw, 48px); }
h2 { font-size: clamp(28px, 4vw, 36px); }
h3 { font-size: 20px; }
h4 { font-size: 16px; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--gray-900);
    border-color: var(--gray-300);
}

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

.btn-full {
    width: 100%;
}

/* ========================================
   Header
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-300);
    z-index: 1000;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 18px;
    color: var(--secondary);
}

.logo img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav a {
    font-size: 15px;
    font-weight: 500;
    color: var(--gray-700);
    transition: color 0.2s;
}

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

.nav-cta {
    background: var(--primary);
    color: var(--white) !important;
    padding: 10px 20px;
    border-radius: var(--radius);
}

.nav-cta:hover {
    background: var(--primary-dark);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-900);
    transition: 0.2s;
}

@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--gray-300);
    }
    
    .nav.active {
        display: flex;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
}

/* ========================================
   Hero
   ======================================== */
.hero {
    padding: 120px 0 80px;
    background: var(--cream);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    background: rgba(232, 93, 4, 0.1);
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 100px;
    margin-bottom: 20px;
}

.hero h1 {
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 18px;
    color: var(--gray-700);
    margin-bottom: 32px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 32px;
}

.stat {
    text-align: center;
}

.stat strong {
    display: block;
    font-size: 28px;
    color: var(--secondary);
}

.stat span {
    font-size: 14px;
    color: var(--gray-500);
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

@media (max-width: 900px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-image {
        max-width: 400px;
        margin: 0 auto;
    }
}

/* ========================================
   Sections
   ======================================== */
.section {
    padding: 80px 0;
}

.section-gray {
    background: var(--gray-100);
}

.section-dark {
    background: var(--secondary);
    color: var(--white);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 48px;
}

.section-header-light h2,
.section-header-light p {
    color: var(--white);
}

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-dark .section-tag {
    color: rgba(255,255,255,0.7);
}

.section-header p {
    color: var(--gray-500);
    margin-top: 12px;
}

.section-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.section-grid-reverse {
    direction: rtl;
}

.section-grid-reverse > * {
    direction: ltr;
}

.section-content h2 {
    margin-bottom: 20px;
}

.section-content p {
    margin-bottom: 16px;
}

.section-content strong {
    color: var(--secondary);
}

.section-image img {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

@media (max-width: 900px) {
    .section-grid,
    .section-grid-reverse {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .section-grid-reverse {
        direction: ltr;
    }
}

/* ========================================
   Features Grid
   ======================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature {
    background: var(--white);
    padding: 32px 24px;
    border-radius: var(--radius);
    text-align: center;
    transition: box-shadow 0.2s;
}

.feature:hover {
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 16px;
}

.feature h3 {
    margin-bottom: 8px;
}

.feature p {
    font-size: 14px;
    color: var(--gray-500);
}

@media (max-width: 900px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Gallery
   ======================================== */
.gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.gallery img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: var(--radius);
}

@media (max-width: 768px) {
    .gallery {
        grid-template-columns: 1fr;
    }
    
    .gallery img {
        height: 250px;
    }
}

/* ========================================
   Investment
   ======================================== */
.investment-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.investment-main {
    background: rgba(255,255,255,0.1);
    padding: 40px;
    border-radius: var(--radius);
    text-align: center;
}

.investment-label {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 8px;
}

.investment-amount {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
}

.investment-note {
    font-size: 13px;
    opacity: 0.7;
}

.investment-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.investment-item {
    background: rgba(255,255,255,0.1);
    padding: 24px;
    border-radius: var(--radius);
    text-align: center;
}

.investment-item strong {
    display: block;
    font-size: 24px;
    margin-bottom: 4px;
}

.investment-item span {
    font-size: 13px;
    opacity: 0.8;
}

.investment-footer {
    text-align: center;
    opacity: 0.8;
}

@media (max-width: 768px) {
    .investment-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Check List
   ======================================== */
.check-list {
    margin: 24px 0;
}

.check-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    font-size: 17px;
}

.check-list li::before {
    content: "✓";
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    font-size: 12px;
    font-weight: bold;
    flex-shrink: 0;
}

/* ========================================
   FAQ
   ======================================== */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
}

.faq-item summary {
    padding: 20px 24px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "+";
    font-size: 20px;
    color: var(--primary);
}

.faq-item[open] summary::after {
    content: "−";
}

.faq-item p {
    padding: 0 24px 20px;
    color: var(--gray-500);
}

/* ========================================
   Contact
   ======================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-card {
    background: var(--cream);
    padding: 24px;
    border-radius: var(--radius);
}

.contact-card h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.contact-phone {
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary);
}

.contact-phone:hover {
    color: var(--primary);
}

.contact-social {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-social a {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-500);
    transition: color 0.2s;
}

.contact-social a:hover {
    color: var(--primary);
}

.contact-form {
    background: var(--gray-100);
    padding: 32px;
    border-radius: var(--radius);
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--gray-700);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 15px;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.form-checkbox input {
    width: auto;
    margin-top: 4px;
}

.form-checkbox label {
    margin-bottom: 0;
    font-size: 13px;
}

.form-checkbox a {
    color: var(--primary);
    text-decoration: underline;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--dark);
    color: var(--gray-500);
    padding: 60px 0 24px;
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.footer-links h4 {
    color: var(--white);
    margin-bottom: 16px;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links a {
    display: block;
    font-size: 14px;
    padding: 6px 0;
    transition: color 0.2s;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: 24px;
    font-size: 14px;
}

.footer-bottom strong {
    color: var(--primary);
}

@media (max-width: 768px) {
    .footer-main {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

/* ========================================
   Modal
   ======================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
}

.modal-content {
    position: relative;
    background: var(--white);
    border-radius: var(--radius);
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-content h2 {
    padding: 24px 24px 0;
    font-size: 20px;
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
}

.modal-body p {
    margin-bottom: 12px;
    font-size: 14px;
    line-height: 1.7;
}

.modal-body p strong {
    color: var(--secondary);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border: none;
    background: var(--gray-100);
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-700);
    transition: background 0.2s;
}

.modal-close:hover {
    background: var(--gray-300);
}