/* ==============================================================================
   OFKO Service - Modern Presentation & Upload Stylesheet
   ============================================================================== */

:root {
    --bg-main: #090c15;
    --bg-card: rgba(18, 24, 38, 0.7);
    --bg-card-hover: rgba(26, 34, 52, 0.85);
    --bg-input: rgba(14, 19, 31, 0.8);
    
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-focus: rgba(99, 102, 241, 0.6);
    --border-accent: rgba(59, 130, 246, 0.4);
    
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --accent-blue: #38bdf8;
    --accent-cyan: #06b6d4;
    --accent-purple: #a855f7;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-subtle);
    --shadow-glow: 0 0 35px -5px rgba(99, 102, 241, 0.35);
}

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

html {
    scroll-behavior: smooth;
    color-scheme: dark;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Ambient glow blobs */
.ambient-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    pointer-events: none;
    z-index: 0;
    opacity: 0.45;
}

.glow-1 {
    top: 5%;
    left: 20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--primary), transparent 70%);
}

.glow-2 {
    top: 45%;
    right: 15%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-cyan), transparent 70%);
}

.container {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* Glassmorphism card */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}

.glass-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-body);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, #4f46e5 0%, #3b82f6 100%);
    color: #ffffff;
    box-shadow: 0 4px 18px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #4338ca 0%, #2563eb 100%);
    box-shadow: 0 6px 24px rgba(79, 70, 229, 0.55);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--border-subtle);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1.05rem;
}

.btn-xl {
    padding: 16px 36px;
    font-size: 1.15rem;
    width: 100%;
}

.btn-link {
    background: none;
    border: none;
    color: var(--accent-blue);
    font-weight: 600;
    text-decoration: underline;
    cursor: pointer;
    padding: 0;
    margin-left: 4px;
}

.btn-link:hover {
    color: #7dd3fc;
}

/* Header & Nav */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(9, 12, 21, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.35rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.main-nav {
    display: flex;
    gap: 28px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Language Dropdown */
.language-dropdown {
    position: relative;
}

.lang-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    padding: 6px 12px;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.lang-trigger:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.lang-arrow {
    transition: transform 0.2s ease;
}

.language-dropdown.open .lang-arrow {
    transform: rotate(180deg);
}

.lang-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: #121826;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 160px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: all 0.2s ease;
    z-index: 200;
}

.language-dropdown.open .lang-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-family: var(--font-body);
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-align: left;
    width: 100%;
    transition: all 0.15s;
}

.lang-option:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.lang-option.active {
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent-blue);
    font-weight: 600;
}

/* Hero Section */
.hero-section {
    padding: 90px 0 60px;
    text-align: center;
}

.hero-container {
    max-width: 860px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: #818cf8;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.gradient-text {
    display: block;
    background: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.trust-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 32px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.stat-card {
    text-align: center;
}

.stat-num {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 36px;
    background: var(--border-subtle);
}

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

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 50px;
}

.section-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.25);
    color: var(--accent-blue);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 14px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 14px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 32px;
    text-align: left;
}

.card-icon {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.card-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.65;
}

/* Steps Grid */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.step-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 30px;
    position: relative;
}

.step-badge {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--accent-cyan);
    margin-bottom: 16px;
}

.step-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.step-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Interactive Inquiry & Upload Section */
.inquiry-wrapper {
    padding: 48px;
    max-width: 820px;
    margin: 0 auto;
}

.inquiry-header {
    text-align: center;
    margin-bottom: 36px;
}

.inquiry-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.inquiry-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 20px;
}

.system-status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: var(--radius-full);
    padding: 6px 16px;
    font-size: 0.8rem;
    font-weight: 500;
    color: #34d399;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-dot.online {
    background: #10b981;
    box-shadow: 0 0 10px #10b981;
}

/* Form Styles */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group.full-width {
    grid-column: span 2;
    margin-bottom: 24px;
}

.form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all 0.2s ease;
    outline: none;
}

.form-control:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

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

.form-control.textarea {
    resize: vertical;
    min-height: 90px;
}

/* Dropzone Media Upload */
.media-upload-container {
    margin-bottom: 32px;
}

.media-header {
    margin-bottom: 12px;
}

.media-title {
    font-size: 1.05rem;
    font-weight: 600;
}

.media-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.dropzone {
    border: 2px dashed rgba(99, 102, 241, 0.4);
    border-radius: var(--radius-md);
    padding: 36px 20px;
    text-align: center;
    background: rgba(99, 102, 241, 0.03);
    cursor: pointer;
    transition: all 0.25s ease;
    position: relative;
}

.dropzone:hover, .dropzone.drag-over {
    border-color: var(--accent-blue);
    background: rgba(56, 189, 248, 0.06);
}

.dropzone-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.dropzone-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.file-input-hidden {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

/* Selected Files Previews */
.selected-files-list {
    margin-top: 16px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 12px;
}

.file-preview-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 8px;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.preview-thumb {
    width: 100%;
    height: 80px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 6px;
    background: #000;
}

.preview-video-placeholder {
    width: 100%;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #172033;
    font-size: 1.8rem;
    border-radius: 4px;
    margin-bottom: 6px;
}

.file-name {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-size {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.btn-remove-file {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(239, 68, 68, 0.85);
    color: #fff;
    border: none;
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-remove-file:hover {
    background: #ef4444;
}

/* Spinner */
.btn-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 0.8s linear infinite;
}

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

.hidden {
    display: none !important;
}

/* Success Card */
.submission-success-card {
    text-align: center;
    padding: 40px 20px;
}

.success-icon {
    font-size: 3.5rem;
    margin-bottom: 16px;
}

.success-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: #34d399;
    margin-bottom: 12px;
}

.success-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 500px;
    margin: 0 auto 24px;
}

.submission-summary-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 28px;
    text-align: left;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
    font-size: 0.9rem;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--border-subtle);
    background: #06080e;
    padding: 60px 0 30px;
    margin-top: 80px;
}

.footer-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.footer-brand {
    max-width: 400px;
}

.footer-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 10px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 24px;
    color: var(--text-muted);
    font-size: 0.85rem;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .main-nav {
        display: none;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }
    
    .inquiry-wrapper {
        padding: 24px 18px;
    }
    
    .trust-stats {
        flex-direction: column;
        gap: 18px;
    }
    
    .stat-divider {
        display: none;
    }
}