/* ==========================================================================
   TORONGO FF ID NAME CHECKING API HUB - ULTRA PRO MAX WHITE & LIGHT THEME
   (Phase 2: Mobile/Desktop Responsive + Ultimate Aesthetic Upgrade)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
    --bg-main: #f8fafc;
    --bg-surface: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.95);
    --bg-card-hover: #ffffff;
    --bg-input: #f1f5f9;
    --bg-input-focus: #ffffff;
    
    --border-color: #e2e8f0;
    --border-glow: #3b82f6;
    --border-light: #f1f5f9;
    
    --accent-blue: #2563eb;
    --accent-blue-hover: #1d4ed8;
    --accent-cyan: #0284c7;
    --accent-emerald: #059669;
    --accent-purple: #7c3aed;
    --accent-amber: #d97706;
    --accent-rose: #dc2626;

    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
    --gradient-purple: linear-gradient(135deg, #7c3aed 0%, #8b5cf6 100%);
    --gradient-emerald: linear-gradient(135deg, #059669 0%, #10b981 100%);
    --gradient-hero: radial-gradient(circle at 50% -10%, rgba(37, 99, 235, 0.08) 0%, rgba(2, 132, 199, 0.03) 45%, transparent 80%);

    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    
    --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.04), 0 1px 2px rgba(15, 23, 42, 0.02);
    --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 4px 10px -3px rgba(15, 23, 42, 0.03);
    --shadow-lg: 0 20px 40px -10px rgba(15, 23, 42, 0.08), 0 8px 16px -4px rgba(15, 23, 42, 0.04);
    --shadow-glow: 0 8px 25px rgba(37, 99, 235, 0.25);
    
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.6);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.05);

    --transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
    background-color: var(--bg-main);
    background-image: var(--gradient-hero);
    background-attachment: fixed;
    background-size: cover;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Animations */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

@keyframes pulse-glow {
    0% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(37, 99, 235, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); }
}

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

.animate-fade-in {
    animation: fadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-float {
    animation: float 4s ease-in-out infinite;
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: var(--radius-full);
    border: 3px solid var(--bg-main);
}
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* Navbar Styling */
.navbar {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1.25rem 2.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 800;
    font-size: 1.35rem;
    letter-spacing: -0.5px;
}

.brand-icon-box {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.2rem;
    box-shadow: var(--shadow-glow);
    transition: var(--transition);
}

.nav-brand:hover .brand-icon-box {
    transform: rotate(5deg) scale(1.05);
}

.nav-brand-text {
    color: var(--text-primary);
    font-weight: 800;
    background: linear-gradient(90deg, #0f172a, #334155);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Hamburger menu (visible on mobile only) */
.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-blue);
    background: #eff6ff;
}

.nav-link i { color: inherit; }

/* Container */
.container {
    max-width: 1280px;
    width: 100%;
    margin: 2rem auto;
    padding: 0 2rem;
    flex: 1;
}

/* Grid System */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; margin-bottom: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-bottom: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-bottom: 1.5rem; }

/* Cards & Styling */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 1.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: transparent;
    transition: var(--transition);
}

.card-hover:hover {
    border-color: #bfdbfe;
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background: var(--bg-card-hover);
}

.card-hover:hover::before {
    background: var(--gradient-primary);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 1rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: -0.3px;
}

.card-title i { color: var(--accent-blue); }

/* Stat Widgets */
.stat-widget {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.stat-widget:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: #bfdbfe;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
    transition: var(--transition);
}

.stat-widget:hover .stat-icon {
    transform: scale(1.1);
}

.stat-icon.blue { background: #eff6ff; color: #2563eb; border: 1px solid #bfdbfe; }
.stat-icon.green { background: #ecfdf5; color: #059669; border: 1px solid #a7f3d0; }
.stat-icon.amber { background: #fffbeb; color: #d97706; border: 1px solid #fde68a; }
.stat-icon.purple { background: #f5f3ff; color: #7c3aed; border: 1px solid #ddd6fe; }
.stat-icon.rose { background: #fff1f2; color: #e11d48; border: 1px solid #fecdd3; }

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

/* Form Controls */
.form-group { margin-bottom: 1.5rem; }

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    color: var(--text-primary);
    transition: var(--transition);
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    background: var(--bg-input-focus);
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.form-control::placeholder {
    color: #94a3b8;
}

/* Buttons */
.btn-primary {
    background: var(--gradient-primary);
    color: #ffffff;
    border: none;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: var(--shadow-glow);
    text-decoration: none;
    line-height: 1;
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 12px 25px rgba(37, 99, 235, 0.35);
    background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
}

.btn-secondary {
    background: #f1f5f9;
    color: var(--text-primary);
    border: 1px solid #cbd5e1;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-decoration: none;
    line-height: 1;
}

.btn-secondary:hover {
    background: #e2e8f0;
    border-color: #94a3b8;
    color: #0f172a;
    transform: translateY(-2px);
}

.btn-danger {
    background: linear-gradient(135deg, #e11d48 0%, #f43f5e 100%);
    color: #ffffff;
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 8px 20px rgba(225, 29, 72, 0.25);
    text-decoration: none;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 25px rgba(225, 29, 72, 0.35);
}

.btn-nav-primary {
    background: var(--gradient-primary);
    color: #ffffff;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: var(--shadow-glow);
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-nav-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.35);
    color: #ffffff;
}

.btn-sm { padding: 8px 16px; font-size: 0.85rem; }

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success { background: #dcfce7; color: #15803d; border: 1px solid #bbf7d0; }
.badge-error { background: #fee2e2; color: #b91c1c; border: 1px solid #fecaca; }
.badge-pending { background: #fef3c7; color: #b45309; border: 1px solid #fde68a; }
.badge-primary { background: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }
.badge-purple { background: #f3e8ff; color: #6b21a8; border: 1px solid #e9d5ff; }
.badge-post { background: #0f172a; color: #ffffff; border: 1px solid #334155; }

/* Tables */
.table-responsive {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: #ffffff;
    -webkit-overflow-scrolling: touch;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    background: #f8fafc;
    color: var(--text-muted);
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    white-space: nowrap;
}

.data-table td {
    padding: 16px 20px;
    border-bottom: 1px solid #f1f5f9;
    font-size: 0.95rem;
    color: var(--text-secondary);
    vertical-align: middle;
}

.data-table tbody tr { transition: var(--transition); }
.data-table tbody tr:hover { background: #f8fafc; }

/* Auth Center Container (For Login/Register) */
.auth-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 150px);
    padding: 2rem;
}

.auth-card {
    width: 100%;
    max-width: 480px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 3rem 2.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    text-align: center;
    animation: fadeIn 0.5s ease-out;
}

.auth-header { margin-bottom: 2.5rem; }
.auth-header h1 { font-size: 1.85rem; font-weight: 800; color: var(--text-primary); margin-bottom: 8px; letter-spacing: -0.5px; }
.auth-header p { color: var(--text-muted); font-size: 1rem; }

/* Code block container */
.code-block-container {
    background: #0f172a;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-top: 1rem;
    box-shadow: var(--shadow-md);
}

.code-block-header {
    background: #1e293b;
    padding: 12px 20px;
    color: #94a3b8;
    font-size: 0.85rem;
    font-family: 'JetBrains Mono', monospace;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #334155;
}

.code-block-body { padding: 20px; overflow-x: auto; }
.code-block-body pre { color: #e2e8f0; font-family: 'JetBrains Mono', monospace; font-size: 0.95rem; line-height: 1.6; }

/* Alert Flashes */
.flash-container { margin-bottom: 1.5rem; }
.alert {
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-sm);
    animation: fadeIn 0.4s ease-out;
}
.alert-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.alert-danger { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-info { background: #eff6ff; color: #1e40af; border: 1px solid #bfdbfe; }

/* Telegram Button */
.btn-telegram {
    background: linear-gradient(135deg, #0088cc 0%, #00a8ff 100%);
    color: #ffffff;
    text-decoration: none;
    border-radius: var(--radius-sm);
    padding: 14px 28px;
    font-weight: 700;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
    box-shadow: 0 8px 20px rgba(0, 136, 204, 0.3);
}

.btn-telegram:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 25px rgba(0, 168, 255, 0.45);
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 6rem 1.5rem 4rem;
    position: relative;
}

.hero-badge {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    color: var(--accent-blue);
    padding: 8px 24px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.1);
    animation: pulse-glow 2s infinite;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.hero-title span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.7;
    font-weight: 500;
}

.tech-stack-banner {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    margin-top: 3rem;
    opacity: 0.6;
    filter: grayscale(100%);
    transition: var(--transition);
}

.tech-stack-banner:hover {
    opacity: 1;
    filter: grayscale(0%);
}

.tech-stack-banner i {
    font-size: 2rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

/* Feature Card */
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.feature-card:hover {
    border-color: #bfdbfe;
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon-box {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    background: #eff6ff;
    color: var(--accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    border: 1px solid #bfdbfe;
    transition: var(--transition);
}

.feature-card:hover .feature-icon-box {
    transform: scale(1.1) rotate(5deg);
    background: var(--accent-blue);
    color: #ffffff;
}

/* Footer */
footer {
    background: #ffffff;
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
    margin-top: auto;
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-brand {
    font-weight: 800;
    color: var(--text-primary);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
}

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

.copyright-text {
    font-size: 0.95rem;
    color: var(--text-muted);
    width: 100%;
    text-align: center;
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

/* ==========================================================================
   RESPONSIVE DESIGN (MOBILE & TABLET)
   ========================================================================== */

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .hero-title { font-size: 3.5rem; letter-spacing: -1.5px; }
}

@media (max-width: 768px) {
    .navbar { padding: 1rem 1.5rem; }
    
    .nav-brand-text { font-size: 1.2rem; }
    .brand-icon-box { width: 38px; height: 38px; font-size: 1.1rem; }
    
    .mobile-menu-toggle { display: block; }
    
    /* Mobile Menu (Hidden by default, shown via JS) */
    .nav-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 0;
        background: var(--glass-bg);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: 1.5rem;
        border-bottom: 1px solid var(--glass-border);
        box-shadow: var(--shadow-md);
        gap: 1rem;
        animation: fadeIn 0.3s ease-out;
    }
    
    .nav-menu.active { display: flex; }
    .nav-link, .btn-nav-primary { width: 100%; justify-content: center; padding: 12px; }

    .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .container { padding: 0 1.25rem; margin: 1.5rem auto; }
    
    .hero-section { padding: 3rem 1rem 2rem; }
    .hero-title { font-size: 2.75rem; }
    .hero-subtitle { font-size: 1.05rem; }
    
    .card { padding: 1.5rem; }
    .stat-widget { padding: 1.25rem; flex-direction: column; text-align: center; gap: 0.75rem;}
    
    .btn-primary, .btn-secondary, .btn-danger { width: 100%; justify-content: center; margin-bottom: 0.5rem; }
    .form-control { font-size: 16px; /* Prevents iOS zoom */ }
    
    .auth-card { padding: 2rem 1.5rem; }
    .footer-content { flex-direction: column; text-align: center; gap: 1.5rem;}
    .footer-links { justify-content: center; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2.25rem; }
    .stat-value { font-size: 1.5rem; }
    .card-title { font-size: 1.15rem; flex-wrap: wrap; line-height: 1.4;}
}