/**
 * Modern Emlak Sitesi - Ana CSS Stil Dosyası
 * Tam Avantaj Emlak Yönetim Sistemi
 * Versiyon: 2.0
 */

/* ============================================
   1. CSS DEĞİŞKENLERİ (ROOT VARIABLES)
   ============================================ */
:root {
    /* Renk Paleti */
    --primary-color: #66CCCC;           /* Ana turkuaz renk */
    --primary-dark: #3B9C9C;            /* Koyu turkuaz - hover için */
    --accent-color: #4CAF50;            /* Vurgu rengi - yeşil */
    --accent-dark: #388E3C;             /* Koyu vurgu rengi */

    /* Arka Plan Renkleri */
    --bg-color: #cfe7e1;                /* Ana arka plan - açık yeşilimsi */
    --bg-light: #e0f2ed;                /* Açık arka plan */
    --bg-white: #FFFFFF;                /* Beyaz arka plan */

    /* Metin Renkleri */
    --text-dark: #212121;               /* Ana metin - koyu */
    --text-medium: #757575;             /* İkincil metin - orta */
    --text-light: #9E9E9E;              /* Açık metin */

    /* Border ve Gölge */
    --border-color: #E0E0E0;            /* Border rengi */
    --border-light: #EEEEEE;            /* Açık border */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.1);
    --shadow-xl: 0 12px 24px rgba(0,0,0,0.12);

    /* Header & Footer */
    --header-bg: #FFD93D;               /* Header arka plan - sarı */
    --footer-bg: #FFD93D;               /* Footer arka plan - sarı */
    --footer-text: #212121;             /* Footer metin - koyu */

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Typography */
    --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Outfit', sans-serif;

    /* Font Weights */
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* Line Heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.8;
}

/* ============================================
   2. RESET VE BASE STİLLER
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: var(--font-regular);
    line-height: var(--line-height-normal);
    color: var(--text-dark);
    background-color: var(--bg-color);
    overflow-x: hidden;
}

/* ============================================
   3. TİPOGRAFİ
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-bold);
    line-height: var(--line-height-tight);
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: var(--font-bold);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: var(--font-bold);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 1.8rem);
    font-weight: var(--font-semibold);
}

h4 {
    font-size: 1.2rem;
    font-weight: var(--font-semibold);
}

h5 {
    font-size: 1.1rem;
    font-weight: var(--font-medium);
}

h6 {
    font-size: 1rem;
    font-weight: var(--font-medium);
}

p {
    font-size: 1rem;
    line-height: var(--line-height-normal);
    margin-bottom: var(--spacing-md);
    color: var(--text-medium);
}

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

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ============================================
   4. CONTAINER VE LAYOUT
   ============================================ */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}

.container-sm {
    max-width: 1200px;
}

.container-lg {
    max-width: 1600px;
}

/* ============================================
   5. HEADER STİLLERİ
   ============================================ */
header {
    background-color: var(--header-bg);
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-normal);
}

header.scrolled {
    box-shadow: var(--shadow-md);
    padding: var(--spacing-sm) 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    color: var(--text-dark);
    text-decoration: none;
}

.logo:hover {
    color: var(--primary-color);
    text-decoration: none;
}

/* Navigation */
nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

nav a {
    font-weight: var(--font-medium);
    color: var(--text-dark);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

nav a:hover {
    color: var(--primary-color);
    background-color: rgba(102, 204, 204, 0.15);
    text-decoration: none;
}

nav a.active {
    color: var(--primary-color);
    font-weight: var(--font-semibold);
}

/* ============================================
   6. FOOTER STİLLERİ
   ============================================ */
footer {
    background: linear-gradient(135deg, #1E88E5 0%, #0041C7 50%, #002B8C 100%);
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
    box-shadow: 0 -4px 20px rgba(0, 65, 199, 0.3);
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--spacing-2xl);
}

.footer-section {
    flex: 1;
    min-width: 250px;
}

.footer-section h3 {
    color: white;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    font-weight: var(--font-semibold);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.footer-section a {
    color: white;
    transition: all var(--transition-fast);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.footer-section a:hover {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transform: translateX(4px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* ============================================
   7. BUTON STİLLERİ
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: var(--font-medium);
    font-family: var(--font-family);
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

/* Primary Button */
.btn-primary {
    background-color: var(--primary-color);
    color: var(--bg-white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    text-decoration: none;
}

/* Secondary Button */
.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--bg-white);
    text-decoration: none;
}

/* Accent Button */
.btn-accent {
    background-color: var(--accent-color);
    color: var(--bg-white);
    box-shadow: var(--shadow-sm);
}

.btn-accent:hover {
    background-color: var(--accent-dark);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    text-decoration: none;
}

/* Light Button */
.btn-light {
    background-color: var(--bg-white);
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
}

.btn-light:hover {
    background-color: var(--bg-light);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

/* Button Sizes */
.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
}

/* ============================================
   8. FORM ELEMENTLERİ
   ============================================ */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="number"],
input[type="date"],
textarea,
select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    font-family: var(--font-family);
    color: var(--text-dark);
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 204, 204, 0.1);
}

textarea {
    min-height: 120px;
    resize: vertical;
}

label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: var(--font-medium);
    color: var(--text-dark);
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

/* ============================================
   9. KARTLAR (CARDS)
   ============================================ */
.card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-normal);
}

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

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
    background-color: var(--bg-light);
}

/* ============================================
   10. GRID SİSTEMİ
   ============================================ */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-cols-1 {
    grid-template-columns: repeat(1, 1fr);
}

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

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

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ============================================
   11. YARDIMCI SINIFLAR (UTILITIES)
   ============================================ */

/* Spacing */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Font Weights */
.font-light { font-weight: var(--font-light); }
.font-normal { font-weight: var(--font-regular); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

/* Text Colors */
.text-dark { color: var(--text-dark); }
.text-medium { color: var(--text-medium); }
.text-light { color: var(--text-light); }
.text-primary { color: var(--primary-color); }
.text-accent { color: var(--accent-color); }

/* Background Colors */
.bg-white { background-color: var(--bg-white); }
.bg-light { background-color: var(--bg-light); }
.bg-primary { background-color: var(--primary-color); }
.bg-accent { background-color: var(--accent-color); }

/* ============================================
   12. ANİMASYONLAR
   ============================================ */

/* Fade In Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

/* Slide In from Left */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-left {
    animation: slideInLeft var(--transition-slow) ease-out;
}

/* Slide In from Right */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight var(--transition-slow) ease-out;
}

/* Scale In */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.scale-in {
    animation: scaleIn var(--transition-normal) ease-out;
}

/* Hover Animations */
.hover-lift {
    transition: transform var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-4px);
}

.hover-scale {
    transition: transform var(--transition-normal);
}

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

/* ============================================
   13. RESPONSIVE TASARIM
   ============================================ */

/* Tablet ve Altı (< 1024px) */
@media (max-width: 1024px) {
    :root {
        font-size: 15px;
    }

    .container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }

    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    nav ul {
        gap: var(--spacing-lg);
    }

    .footer-container {
        gap: var(--spacing-xl);
    }
}

/* Mobil (< 768px) */
@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    .container {
        padding-left: var(--spacing-sm);
        padding-right: var(--spacing-sm);
    }

    .header-container {
        flex-direction: column;
        gap: var(--spacing-md);
        padding: var(--spacing-sm);
    }

    nav ul {
        flex-direction: column;
        gap: var(--spacing-sm);
        width: 100%;
    }

    nav a {
        width: 100%;
        text-align: center;
        padding: var(--spacing-sm);
    }

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-container {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .footer-section {
        min-width: 100%;
    }

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

    .card:hover {
        transform: none;
    }
}

/* Küçük Mobil (< 480px) */
@media (max-width: 480px) {
    :root {
        font-size: 13px;
    }

    .container {
        padding-left: var(--spacing-xs);
        padding-right: var(--spacing-xs);
    }

    .btn-lg {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 1rem;
    }
}

/* ============================================
   14. SCROLL ANİMASYONU (Intersection Observer için)
   ============================================ */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

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

/* ============================================
   15. LOADİNG VE SKELETON
   ============================================ */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s linear infinite;
}

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

.skeleton {
    background: linear-gradient(90deg, var(--bg-light) 25%, var(--border-light) 50%, var(--bg-light) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ============================================
   16. TOAST NOTİFİCATION
   ============================================ */
.toast {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    background-color: var(--text-dark);
    color: var(--bg-white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    z-index: 9999;
    animation: slideInRight 0.3s ease-out;
}

.toast.success {
    background-color: var(--accent-color);
}

.toast.error {
    background-color: #f44336;
}

.toast.warning {
    background-color: #ff9800;
}

/* ============================================
   17. BADGE VE TAG
   ============================================ */
.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: var(--font-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background-color: var(--primary-color);
    color: var(--bg-white);
}

.badge-accent {
    background-color: var(--accent-color);
    color: var(--bg-white);
}

.badge-light {
    background-color: var(--bg-light);
    color: var(--text-dark);
}

/* ============================================
   18. PRINT STİLLERİ
   ============================================ */
@media print {
    header,
    footer,
    nav,
    .btn,
    .no-print {
        display: none !important;
    }

    body {
        background-color: white;
        color: black;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}