/* ========================================
   Teklif Hazırla - Premium Dark Theme
   ======================================== */

:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.3);
    --success: #22c55e;
    --success-hover: #16a34a;
    --info: #3b82f6;
    --info-hover: #2563eb;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --warning: #f59e0b;

    --bg-dark: #0f0f1a;
    --bg-card: rgba(30, 30, 50, 0.7);
    --bg-input: rgba(45, 45, 70, 0.6);
    --border-color: rgba(99, 102, 241, 0.2);
    --border-hover: rgba(99, 102, 241, 0.5);

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px var(--primary-glow);

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    background-image:
        radial-gradient(ellipse at top, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(34, 197, 94, 0.05) 0%, transparent 50%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* ========================================
   Header
   ======================================== */

.header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.logo-icon {
    font-size: 2.5rem;
    filter: drop-shadow(0 0 10px var(--primary-glow));
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, #a855f7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 400;
}

/* ========================================
   Cards
   ======================================== */

.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    background: rgba(99, 102, 241, 0.05);
    border-bottom: 1px solid var(--border-color);
}

.card-header h2 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-header .icon {
    font-size: 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* ========================================
   Forms
   ======================================== */

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.25rem;
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group select {
    padding: 0.875rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* ========================================
   Large Textarea
   ======================================== */

.input-hint {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.large-textarea {
    width: 100%;
    min-height: 200px;
    padding: 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
    line-height: 1.6;
    resize: vertical;
    transition: var(--transition);
}

.large-textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

.large-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* ========================================
   Quotes Table
   ======================================== */

.quotes-table {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.quote-row {
    display: grid;
    grid-template-columns: 1fr 150px 80px;
    gap: 1rem;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.quote-row:hover:not(.header-row) {
    background: rgba(99, 102, 241, 0.1);
}

.quote-row.header-row {
    background: transparent;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.quote-row input {
    padding: 0.625rem 0.875rem;
    background: rgba(15, 15, 26, 0.5);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
}

.quote-row input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
}

.quote-actions {
    display: flex;
    justify-content: center;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #8b5cf6 100%);
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover) 0%, #7c3aed 100%);
    box-shadow: 0 6px 25px var(--primary-glow);
    transform: translateY(-2px);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.3);
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--success-hover) 0%, #047857 100%);
    transform: translateY(-2px);
}

.btn-info {
    background: linear-gradient(135deg, var(--info) 0%, #0ea5e9 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-info:hover {
    background: linear-gradient(135deg, var(--info-hover) 0%, #0284c7 100%);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(100, 116, 139, 0.3);
    color: var(--text-secondary);
    border: 1px solid rgba(100, 116, 139, 0.3);
}

.btn-secondary:hover {
    background: rgba(100, 116, 139, 0.5);
    color: var(--text-primary);
}

.btn-add {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
    border: 1px solid rgba(34, 197, 94, 0.3);
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-add:hover {
    background: rgba(34, 197, 94, 0.25);
    border-color: var(--success);
}

.btn-delete {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
}

.btn-delete:hover {
    background: rgba(239, 68, 68, 0.25);
    border-color: var(--danger);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-icon {
    font-size: 1.2em;
}

/* ========================================
   Action Buttons Section
   ======================================== */

.action-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem 0;
}

/* ========================================
   Result Section
   ======================================== */

.result-section {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(99, 102, 241, 0.1) 100%);
    border-color: rgba(34, 197, 94, 0.3);
}

.result-info {
    background: rgba(15, 15, 26, 0.5);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.9rem;
    color: var(--text-secondary);
    max-height: 200px;
    overflow-y: auto;
}

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

/* ========================================
   Loading Overlay
   ======================================== */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 15, 26, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    z-index: 1000;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-overlay p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-muted);
    font-size: 0.875rem;
    border-top: 1px solid var(--border-color);
    margin-top: 2rem;
}

/* ========================================
   Utilities
   ======================================== */

.hidden {
    display: none !important;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .logo h1 {
        font-size: 1.75rem;
    }

    .card-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .quote-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .quote-row.header-row {
        display: none;
    }

    .download-buttons {
        flex-direction: column;
    }

    .action-buttons {
        flex-direction: column;
    }
}

/* ========================================
   Scrollbar
   ======================================== */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}