/**
 * TREDAŞ - Lisanssız Üretim Başvuru Sistemi
 * Ana CSS Dosyası
 * 
 * İçerik:
 * 1. Base Styles
 * 2. Utility Classes
 * 3. Layout Components (Header, Footer, Sidebar)
 * 4. Page Specific Styles
 */

/* ============================================
   1. BASE STYLES
   ============================================ */

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

/* ============================================
   2. UTILITY CLASSES
   ============================================ */

/* Display Utilities */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

/* Flexbox Utilities */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.justify-center { justify-content: center !important; }
.justify-between { justify-content: space-between !important; }
.justify-start { justify-content: flex-start !important; }
.justify-end { justify-content: flex-end !important; }
.items-center { align-items: center !important; }
.items-start { align-items: flex-start !important; }
.items-end { align-items: flex-end !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }
.gap-1 { gap: 0.25rem !important; }
.gap-2 { gap: 0.5rem !important; }
.gap-3 { gap: 1rem !important; }
.gap-4 { gap: 1.5rem !important; }
.gap-5 { gap: 2rem !important; }

/* Text Utilities */
.text-center { text-align: center !important; }
.text-left { text-align: left !important; }
.text-right { text-align: right !important; }
.text-uppercase { text-transform: uppercase !important; }
.text-lowercase { text-transform: lowercase !important; }
.text-capitalize { text-transform: capitalize !important; }
.font-bold { font-weight: 700 !important; }
.font-semibold { font-weight: 600 !important; }
.font-medium { font-weight: 500 !important; }
.font-normal { font-weight: 400 !important; }
.text-sm { font-size: 0.875rem !important; }
.text-base { font-size: 1rem !important; }
.text-lg { font-size: 1.125rem !important; }
.text-xl { font-size: 1.25rem !important; }
.text-2xl { font-size: 1.5rem !important; }

/* Spacing Utilities */
.m-0 { margin: 0 !important; }
.m-1 { margin: 0.25rem !important; }
.m-2 { margin: 0.5rem !important; }
.m-3 { margin: 1rem !important; }
.m-4 { margin: 1.5rem !important; }
.m-5 { margin: 2rem !important; }
.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mt-5 { margin-top: 2rem !important; }
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 2rem !important; }
.ml-0 { margin-left: 0 !important; }
.ml-1 { margin-left: 0.25rem !important; }
.ml-2 { margin-left: 0.5rem !important; }
.ml-3 { margin-left: 1rem !important; }
.mr-0 { margin-right: 0 !important; }
.mr-1 { margin-right: 0.25rem !important; }
.mr-2 { margin-right: 0.5rem !important; }
.mr-3 { margin-right: 1rem !important; }
.mx-auto { margin-left: auto !important; margin-right: auto !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: 0.25rem !important; }
.p-2 { padding: 0.5rem !important; }
.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }
.p-5 { padding: 2rem !important; }
.pt-0 { padding-top: 0 !important; }
.pt-1 { padding-top: 0.25rem !important; }
.pt-2 { padding-top: 0.5rem !important; }
.pt-3 { padding-top: 1rem !important; }
.pt-4 { padding-top: 1.5rem !important; }
.pb-0 { padding-bottom: 0 !important; }
.pb-1 { padding-bottom: 0.25rem !important; }
.pb-2 { padding-bottom: 0.5rem !important; }
.pb-3 { padding-bottom: 1rem !important; }
.pb-4 { padding-bottom: 1.5rem !important; }
.px-0 { padding-left: 0 !important; padding-right: 0 !important; }
.px-1 { padding-left: 0.25rem !important; padding-right: 0.25rem !important; }
.px-2 { padding-left: 0.5rem !important; padding-right: 0.5rem !important; }
.px-3 { padding-left: 1rem !important; padding-right: 1rem !important; }
.px-4 { padding-left: 1.5rem !important; padding-right: 1.5rem !important; }
.py-0 { padding-top: 0 !important; padding-bottom: 0 !important; }
.py-1 { padding-top: 0.25rem !important; padding-bottom: 0.25rem !important; }
.py-2 { padding-top: 0.5rem !important; padding-bottom: 0.5rem !important; }
.py-3 { padding-top: 1rem !important; padding-bottom: 1rem !important; }
.py-4 { padding-top: 1.5rem !important; padding-bottom: 1.5rem !important; }

/* Width & Height */
.w-full { width: 100% !important; }
.w-auto { width: auto !important; }
.h-full { height: 100% !important; }
.h-auto { height: auto !important; }
.max-w-sm { max-width: 640px !important; }
.max-w-md { max-width: 768px !important; }
.max-w-lg { max-width: 1024px !important; }
.max-w-xl { max-width: 1280px !important; }

/* Border Utilities */
.rounded { border-radius: 0.375rem !important; }
.rounded-sm { border-radius: 0.25rem !important; }
.rounded-lg { border-radius: 0.5rem !important; }
.rounded-xl { border-radius: 0.75rem !important; }
.rounded-full { border-radius: 9999px !important; }
.border { border: 1px solid #ddd !important; }
.border-0 { border: 0 !important; }
.border-t { border-top: 1px solid #ddd !important; }
.border-b { border-bottom: 1px solid #ddd !important; }

/* Shadow Utilities */
.shadow-sm { box-shadow: 0 1px 2px rgba(0,0,0,0.05) !important; }
.shadow { box-shadow: 0 2px 8px rgba(0,0,0,0.08) !important; }
.shadow-md { box-shadow: 0 4px 16px rgba(0,0,0,0.1) !important; }
.shadow-lg { box-shadow: 0 8px 24px rgba(0,0,0,0.15) !important; }
.shadow-none { box-shadow: none !important; }

/* Background Colors */
.bg-primary { background-color: #1e5fa8 !important; }
.bg-secondary { background-color: #6c757d !important; }
.bg-success { background-color: #27ae60 !important; }
.bg-danger { background-color: #e74c3c !important; }
.bg-warning { background-color: #f39c12 !important; }
.bg-info { background-color: #3498db !important; }
.bg-light { background-color: #f8f9fa !important; }
.bg-dark { background-color: #2c3e50 !important; }
.bg-white { background-color: #ffffff !important; }
.bg-transparent { background-color: transparent !important; }

/* Text Colors */
.text-primary { color: #1e5fa8 !important; }
.text-secondary { color: #6c757d !important; }
.text-success { color: #27ae60 !important; }
.text-danger { color: #e74c3c !important; }
.text-warning { color: #f39c12 !important; }
.text-info { color: #3498db !important; }
.text-dark { color: #333 !important; }
.text-muted { color: #666 !important; }
.text-white { color: #ffffff !important; }

/* Position */
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-fixed { position: fixed !important; }
.position-sticky { position: sticky !important; }

/* Overflow */
.overflow-hidden { overflow: hidden !important; }
.overflow-auto { overflow: auto !important; }
.overflow-scroll { overflow: scroll !important; }

/* Cursor */
.cursor-pointer { cursor: pointer !important; }
.cursor-default { cursor: default !important; }
.cursor-not-allowed { cursor: not-allowed !important; }

/* Opacity */
.opacity-0 { opacity: 0 !important; }
.opacity-50 { opacity: 0.5 !important; }
.opacity-75 { opacity: 0.75 !important; }
.opacity-100 { opacity: 1 !important; }

/* Transitions */
.transition { transition: all 0.3s ease !important; }
.transition-fast { transition: all 0.15s ease !important; }
.transition-slow { transition: all 0.5s ease !important; }

/* Responsive Utilities */
@media (max-width: 768px) {
    .mobile-hidden { display: none !important; }
    .mobile-block { display: block !important; }
}

@media (min-width: 769px) {
    .desktop-hidden { display: none !important; }
    .desktop-block { display: block !important; }
}

/* ============================================
   3. LAYOUT COMPONENTS
   ============================================ */

/* Header */
.header {
    background: linear-gradient(135deg, #1e5fa8 0%, #2980b9 100%);
    color: white;
    padding: 2rem 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header-content {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.logo {
    flex-shrink: 0;
}

.logo img {
    height: 80px;
    width: auto;
    filter: brightness(0) invert(1);
}

.header-title {
    flex: 1;
}

.header-title h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
}

.header-title p {
    font-size: 1rem;
    opacity: 0.95;
    font-weight: 300;
}

/* Main Container */
.main-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
    min-height: 60vh;
}

/* Sidebar */
.sidebar {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    padding: 1.5rem;
    height: fit-content;
    position: sticky;
    top: 2rem;
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e5fa8;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e8f0f8;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 0.5rem;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: #555;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
    font-size: 0.95rem;
}

.sidebar-menu a:hover {
    background: #e8f0f8;
    color: #1e5fa8;
    transform: translateX(4px);
}

.sidebar-menu a.active {
    background: #1e5fa8;
    color: white;
    font-weight: 500;
}

.sidebar-menu a::before {
    content: "→";
    margin-right: 0.75rem;
    opacity: 0;
    transition: opacity 0.3s;
}

.sidebar-menu a:hover::before,
.sidebar-menu a.active::before {
    opacity: 1;
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(2px);
}

.modal-content {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    max-width: 90%;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid #eee;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid #eee;
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* Content Area */
.content {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    padding: 2rem;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    margin-top: 4rem;
    padding: 2rem 0 1rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-content {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 1rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 2rem;
    align-items: start;
}

.footer-title {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.footer-section-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: rgba(255,255,255,0.95);
    margin-bottom: 0.75rem;
}

.footer-text {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    line-height: 1.8;
}

.footer-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.footer-info p {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    line-height: 1.8;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-end;
}

.contact-list {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    color: rgba(255,255,255,0.9);
    font-size: 0.95rem;
    text-decoration: none;
    padding: 0.35rem 0;
    border-radius: 10px;
    max-width: 320px;
    width: 100%;
}

.contact-item:hover,
.contact-item:focus {
    color: white;
}

.contact-text {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    text-align: center;
}

.contact-text small {
    color: rgba(255,255,255,0.7);
    font-size: 0.8rem;
}

.contact-icon {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.footer-bottom {
    text-align: center;
    color: rgba(255,255,255,0.6);
    font-size: 0.85rem;
}

/* ============================================
   4. PAGE SPECIFIC STYLES
   ============================================ */

/* Common Components */
.btn {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #27ae60 0%, #229954 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(39, 174, 96, 0.4);
}

.btn-secondary {
    background: white;
    color: #666;
    border: 2px solid #ddd;
}

.btn-secondary:hover {
    border-color: #1e5fa8;
    color: #1e5fa8;
}

/* Info Cards */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.info-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    border-left: 4px solid #1e5fa8;
    transition: transform 0.3s, box-shadow 0.3s;
}

.info-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.info-card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.info-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e5fa8;
    margin-bottom: 0.5rem;
}

.info-card-text {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Forms */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    color: #333;
    font-size: 0.95rem;
}

.form-group label .required {
    color: #e74c3c;
    margin-left: 0.25rem;
}

.form-control {
    padding: 0.75rem 1rem;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s;
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: #1e5fa8;
    box-shadow: 0 0 0 3px rgba(30, 95, 168, 0.1);
}

.form-control:disabled {
    background: #f5f5f5;
    cursor: not-allowed;
}
.sidebar-menu {
    padding: 0;
}
/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .header-title h1 {
        font-size: 1.5rem;
    }
    
    .main-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .footer-contact,
    .contact-list {
        align-items: flex-start;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}