/* Obsidian & Chrome - Modern Dark Mode */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@300;400;500;600;700&display=swap');

:root {
    --bg-primary: #121212;        /* Deep Matte Black */
    --bg-secondary: #1A1A1B;      /* Charcoal */
    --bg-tertiary: #2A2A2B;       /* Elevated surface */
    --bg-quaternary: #3A3A3B;     /* Higher elevation */
    --text-primary: #FFFFFF;
    --text-secondary: #E0E0E0;
    --text-muted: #B0B0B0;
    --accent-red: #DC2626;        /* Electric Crimson */
    --accent-gold: #D4AF37;       /* Gibson Gold */
    --glass-bg: rgba(255, 255, 255, 0.02);
    --glass-border: rgba(255, 255, 255, 0.08);
    --shadow-elevation-low: 0 2px 8px rgba(0, 0, 0, 0.6);
    --shadow-elevation-medium: 0 4px 16px rgba(0, 0, 0, 0.8);
    --shadow-elevation-high: 0 8px 32px rgba(0, 0, 0, 0.9);
    --chrome-gradient: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.02) 100%);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Clean background - solid deep black */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: -2;
}

/* Headlines use Oswald for that custom-shop feel */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Oswald', sans-serif;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.display-4 {
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
    letter-spacing: 1px;
}

/* Navbar - Chrome finish */
.navbar-dark {
    background: var(--bg-secondary) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-elevation-medium);
}

.navbar-brand {
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--text-primary) !important;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    position: relative;
}

.navbar-brand::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-red);
    transition: width 0.3s ease;
}

.navbar-brand:hover::after {
    width: 100%;
}

.nav-link {
    color: var(--text-secondary) !important;
    transition: all 0.3s ease;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.nav-link:hover {
    color: var(--accent-red) !important;
    text-shadow: 0 0 8px rgba(220, 38, 38, 0.4);
}

.navbar-text {
    color: var(--text-primary) !important;
    font-weight: 500;
}

/* Animated Waveform - Centered */
.waveform {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    gap: 3px;
    z-index: -1;
    opacity: 0.3;
}

.wave-bar {
    width: 4px;
    background: linear-gradient(180deg, var(--accent-red), rgba(220, 38, 38, 0.6));
    border-radius: 2px;
    animation: wave 2s ease-in-out infinite;
    box-shadow: 0 0 15px rgba(220, 38, 38, 0.4);
}

.wave-bar:nth-child(1) { height: 30px; animation-delay: 0s; }
.wave-bar:nth-child(2) { height: 50px; animation-delay: 0.15s; }
.wave-bar:nth-child(3) { height: 20px; animation-delay: 0.3s; }
.wave-bar:nth-child(4) { height: 60px; animation-delay: 0.45s; }
.wave-bar:nth-child(5) { height: 40px; animation-delay: 0.6s; }
.wave-bar:nth-child(6) { height: 45px; animation-delay: 0.75s; }
.wave-bar:nth-child(7) { height: 25px; animation-delay: 0.9s; }
.wave-bar:nth-child(8) { height: 35px; animation-delay: 1.05s; }
.wave-bar:nth-child(9) { height: 55px; animation-delay: 1.2s; }

@keyframes wave {
    0%, 100% { transform: scaleY(0.5); }
    50% { transform: scaleY(1); }
}

/* Inline Wave Animation for Navbar */
.wave-inline {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    margin-right: 12px;
    vertical-align: middle;
    height: 24px; /* Match the tallest bar */
}

.wave-bar-small {
    width: 4px;
    background: linear-gradient(180deg, var(--accent-red), rgba(220, 38, 38, 0.8));
    border-radius: 2px;
    animation: wave-small 1.5s ease-in-out infinite;
    box-shadow: 0 0 8px rgba(220, 38, 38, 0.4);
    align-self: center; /* Center each bar within the container */
}

.wave-bar-small:nth-child(1) { height: 16px; animation-delay: 0s; }
.wave-bar-small:nth-child(2) { height: 24px; animation-delay: 0.2s; }
.wave-bar-small:nth-child(3) { height: 12px; animation-delay: 0.4s; }

@keyframes wave-small {
    0%, 100% { transform: scaleY(0.3); opacity: 0.6; }
    50% { transform: scaleY(1); opacity: 1; }
}

/* Elevated Cards - Chrome finish with deep shadows */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-elevation-medium);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--chrome-gradient);
    opacity: 0.6;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-elevation-high);
    border-color: rgba(220, 38, 38, 0.2);
}

.card:hover::before {
    opacity: 1;
    background: linear-gradient(90deg, transparent, var(--accent-red), transparent);
    animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.card-header {
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--glass-border);
    border-radius: 16px 16px 0 0 !important;
    color: var(--text-primary);
    font-weight: 600;
    padding: 1.25rem 1.5rem;
    position: relative;
}

.card-header h5 {
    font-family: 'Oswald', sans-serif;
    font-weight: 600;
    letter-spacing: 0.8px;
    margin: 0;
}

.card-body {
    color: var(--text-primary);
    padding: 1.5rem;
    background: var(--chrome-gradient);
}

/* Chrome-finished Buttons */
.btn-primary, .btn-success, .btn-danger {
    background: linear-gradient(145deg, var(--accent-red), #B91C1C);
    border: none;
    border-radius: 12px;
    color: white;
    font-family: 'Oswald', sans-serif;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    padding: 14px 28px;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-elevation-low);
}

.btn-primary::before, .btn-success::before, .btn-danger::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.btn-primary:hover::before, .btn-success:hover::before, .btn-danger:hover::before {
    left: 100%;
}

.btn-primary:hover, .btn-success:hover, .btn-danger:hover {
    background: linear-gradient(145deg, #B91C1C, var(--accent-red));
    transform: translateY(-3px);
    box-shadow: var(--shadow-elevation-medium);
}

.btn-primary:active, .btn-success:active, .btn-danger:active {
    transform: translateY(-1px);
    box-shadow: var(--shadow-elevation-low);
}

.btn-secondary {
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-secondary);
    font-family: 'Oswald', sans-serif;
    font-weight: 500;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    padding: 14px 28px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-elevation-low);
}

.btn-secondary:hover {
    background: var(--bg-quaternary);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-elevation-medium);
    border-color: rgba(220, 38, 38, 0.3);
}

/* Chrome-finished Form Elements */
.form-control, .form-select {
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-primary);
    padding: 14px 16px;
    transition: all 0.3s ease;
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.4);
}

.form-control:focus, .form-select:focus {
    background: var(--bg-quaternary);
    border-color: var(--accent-red);
    box-shadow: 
        inset 0 2px 4px rgba(0, 0, 0, 0.4),
        0 0 0 0.2rem rgba(220, 38, 38, 0.25);
    color: var(--text-primary);
}

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

.form-label {
    color: var(--text-primary);
    font-family: 'Oswald', sans-serif;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.input-group-text {
    background: var(--bg-quaternary) !important;
    border: 1px solid var(--glass-border) !important;
    color: var(--accent-red) !important;
    font-weight: 600;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.4);
}

/* Chrome Alerts with elevation */
.alert {
    border: none;
    border-radius: 12px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-elevation-low);
    font-family: 'Inter', sans-serif;
    font-weight: 500;
}

.alert-success {
    background: rgba(34, 197, 94, 0.15);
    color: #10B981;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #EF4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.alert-info {
    background: rgba(59, 130, 246, 0.15);
    color: #3B82F6;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

/* Jumbotron with deep elevation */
.jumbotron {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-elevation-high);
    position: relative;
}

.jumbotron::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-red), var(--accent-gold), transparent);
    opacity: 0.8;
}

/* Chrome Table styling */
.table {
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(255, 255, 255, 0.02);
}

.table th {
    border-color: var(--glass-border);
    color: var(--text-primary);
    font-family: 'Oswald', sans-serif;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-size: 0.85rem;
    padding: 1rem 0.75rem;
}

.table td {
    border-color: var(--glass-border);
    color: var(--text-secondary);
    padding: 1rem 0.75rem;
    vertical-align: middle;
}

/* Status badges with chrome finish */
.badge {
    font-family: 'Oswald', sans-serif;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 0.5rem 0.8rem;
    border-radius: 6px;
}

/* Container enhancements */
.container {
    position: relative;
    z-index: 1;
}

/* Text colors for chrome theme */
.text-danger { color: #EF4444 !important; }
.text-muted { color: var(--text-muted) !important; }

/* Stat icons with chrome finish */
.stat-icon {
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
    box-shadow: var(--shadow-elevation-low);
    transition: all 0.3s ease;
}

.stat-icon:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-elevation-medium);
}

/* Loading Animation */
.loading-wave {
    display: inline-flex;
    gap: 2px;
}

.loading-wave span {
    width: 4px;
    height: 20px;
    background: var(--accent-red);
    border-radius: 2px;
    animation: loadingWave 1s ease-in-out infinite;
}

.loading-wave span:nth-child(2) { animation-delay: 0.1s; }
.loading-wave span:nth-child(3) { animation-delay: 0.2s; }
.loading-wave span:nth-child(4) { animation-delay: 0.3s; }

@keyframes loadingWave {
    0%, 100% { transform: scaleY(0.5); opacity: 0.5; }
    50% { transform: scaleY(1); opacity: 1; }
}

/* Alert Notifications - Dark Theme */
.alert {
    background: var(--bg-tertiary) !important;
    border: 1px solid var(--glass-border) !important;
    color: var(--text-primary) !important;
    border-radius: 8px !important;
    box-shadow: var(--shadow-elevation-low);
    backdrop-filter: blur(20px);
}

.alert-success {
    border-color: rgba(34, 197, 94, 0.3) !important;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), var(--bg-tertiary)) !important;
}

.alert-danger {
    border-color: rgba(220, 38, 38, 0.5) !important;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.1), var(--bg-tertiary)) !important;
}

.alert-info {
    border-color: rgba(59, 130, 246, 0.3) !important;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), var(--bg-tertiary)) !important;
}

.btn-close {
    filter: invert(1) !important;
    opacity: 0.8 !important;
}

.btn-close:hover {
    opacity: 1 !important;
}

/* Table Styling - Dark Theme */
.table {
    color: var(--text-primary) !important;
    border-color: var(--glass-border) !important;
}

.table th {
    background: var(--bg-quaternary) !important;
    color: var(--text-primary) !important;
    border-color: var(--glass-border) !important;
    font-family: 'Oswald', sans-serif;
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table td {
    background: var(--bg-tertiary) !important;
    border-color: var(--glass-border) !important;
    color: var(--text-secondary) !important;
}

.table-striped > tbody > tr:nth-of-type(odd) > td {
    background: var(--bg-secondary) !important;
}

.table-hover > tbody > tr:hover > td {
    background: var(--bg-quaternary) !important;
    color: var(--text-primary) !important;
}

.badge {
    font-size: 0.75rem !important;
    padding: 0.375rem 0.75rem !important;
}

.btn-group-sm .btn {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
}

.btn-outline-warning {
    color: var(--accent-gold) !important;
    border-color: var(--accent-gold) !important;
}

.btn-outline-warning:hover {
    background: var(--accent-gold) !important;
    color: #000 !important;
}

.btn-outline-danger {
    color: var(--accent-red) !important;
    border-color: var(--accent-red) !important;
}

.btn-outline-danger:hover {
    background: var(--accent-red) !important;
    color: #fff !important;
}

/* Responsive Design */
/* Image Upload Styling */
.form-control {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    border-radius: 8px;
    padding: 12px;
    transition: all 0.3s ease;
}

.form-control:focus {
    background-color: var(--bg-secondary);
    border-color: var(--accent-red);
    box-shadow: 0 0 0 0.2rem rgba(220, 38, 38, 0.25);
    color: var(--text-primary);
}

.form-control::file-selector-button {
    background: linear-gradient(135deg, var(--accent-red), #DC2626);
    border: none;
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 600;
    font-family: 'Oswald', sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-right: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.form-control::file-selector-button:hover {
    background: linear-gradient(135deg, #B91C1C, var(--accent-red));
    transform: translateY(-1px);
    box-shadow: var(--shadow-elevation-medium);
}

.form-label {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 8px;
    font-family: 'Oswald', sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
}

.form-text {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Preview Image Styling */
#imagePreview img {
    box-shadow: var(--shadow-elevation-low);
    transition: all 0.3s ease;
}

#imagePreview img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-elevation-medium);
}

/* Result Image Styling */
#resultImg {
    box-shadow: var(--shadow-elevation-medium);
    transition: all 0.3s ease;
}

#resultImg:hover {
    box-shadow: var(--shadow-elevation-high);
}

/* Processing Button Animation */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Alert Styling */
.alert {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    border-radius: 8px;
}

.alert-warning {
    border-color: rgba(255, 193, 7, 0.3);
    background-color: rgba(255, 193, 7, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .waveform {
        top: 10px;
        right: 10px;
    }
    
    .wave-bar {
        width: 2px;
    }
    
    .card {
        margin: 10px;
    }
    
    #imagePreview img, #resultImg {
        max-width: 100%;
        height: auto;
    }
}