/* MultiDEA Web Style Sheet */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Color Palette - Dark Slate / Indigo */
    --bg-main: #0c0f17;
    --bg-card: #131924;
    --bg-card-hover: #18202e;
    --border-color: rgba(148, 163, 184, 0.15);
    --border-active: #5c67de;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Accent Colors */
    --accent-primary: #5c67de;
    --accent-primary-glow: rgba(92, 103, 222, 0.15);
    --accent-secondary: #0ea5e9;
    --accent-success: #10b981;
    --accent-success-glow: rgba(16, 185, 129, 0.1);
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #5c67de 0%, #0ea5e9 100%);
    --gradient-glow: radial-gradient(circle at 50% 50%, rgba(92, 103, 222, 0.08) 0%, transparent 70%);

    /* Transitions & Fonts */
    --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --font-heading: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* Light Theme Variables */
body.light-theme {
    --bg-main: #f1f5f9;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --border-color: rgba(15, 23, 42, 0.08);
    --border-active: #5c67de;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --accent-primary: #4f46e5;
    --accent-primary-glow: rgba(79, 70, 229, 0.1);
    
    --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
}

/* General Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
    position: relative;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Ambient Backdrops */
body::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.05) 0%, transparent 75%);
    z-index: -1;
    pointer-events: none;
}

.app-container {
    display: flex;
    width: 100vw;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: 280px;
    background: rgba(13, 18, 30, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-right: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    flex-shrink: 0;
    z-index: 10;
}

body.light-theme .sidebar {
    background: rgba(255, 255, 255, 0.8);
}

.logo-container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    list-style: none;
    flex-grow: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border-left: 3px solid transparent;
}

.nav-item i {
    font-size: 1.1rem;
}

.nav-item:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

body.light-theme .nav-item:hover {
    background: rgba(0, 0, 0, 0.03);
}

.nav-item.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
    border-left-color: var(--accent-primary);
}

body.light-theme .nav-item.active {
    background: rgba(0, 0, 0, 0.04);
}

.nav-item.active i {
    color: var(--accent-primary);
}

.sidebar-footer {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

/* Main Content Styling */
.main-content {
    flex-grow: 1;
    padding: 2rem 2.5rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: calc(100vw - 280px);
}

.content-section {
    display: none;
    animation: fadeIn 0.35s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.content-section.active {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
}

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

/* Cards & Containers */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1.5rem;
    transition: var(--transition-smooth);
}

.glass-card:hover {
    border-color: rgba(255, 255, 255, 0.08);
}

body.light-theme .glass-card:hover {
    border-color: rgba(0, 0, 0, 0.05);
}

.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 900px) {
    .settings-grid {
        grid-template-columns: 1fr;
    }
}

/* Forms & Inputs */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-input, .custom-select {
    width: 100%;
    padding: 0.65rem 0.85rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: var(--transition-smooth);
    outline: none;
}

body.light-theme .form-input, body.light-theme .custom-select {
    background: rgba(0, 0, 0, 0.01);
}

.form-input:focus, .custom-select:focus {
    border-color: var(--border-active);
    box-shadow: 0 0 0 3px var(--accent-primary-glow);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 4px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-primary {
    background: var(--gradient-primary);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(92, 103, 222, 0.2);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(92, 103, 222, 0.35);
}

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

body.light-theme .btn-secondary {
    background: rgba(0, 0, 0, 0.03);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
}

.btn-success {
    background: var(--accent-success);
    color: #ffffff;
}

.btn-success:hover {
    filter: brightness(1.1);
}

.btn-small {
    padding: 0.4rem 0.85rem;
    font-size: 0.8rem;
}

.w-100 {
    width: 100%;
}

.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1.25rem; }
.mb-4 { margin-bottom: 1.25rem; }

/* Drag and Drop Zone */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 6px;
    padding: 2.5rem 1.5rem;
    text-align: center;
    background: rgba(255, 255, 255, 0.01);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.upload-area:hover, .upload-area.dragover {
    border-color: var(--accent-primary);
    background: rgba(92, 103, 222, 0.02);
}

/* Tables */
.table-container {
    width: 100%;
    overflow-x: auto;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: left;
}

.custom-table th {
    background: rgba(255, 255, 255, 0.02);
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

body.light-theme .custom-table th {
    background: rgba(0, 0, 0, 0.01);
}

.custom-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.custom-table tbody tr:last-child td {
    border-bottom: none;
}

.custom-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.01);
}

body.light-theme .custom-table tbody tr:hover {
    background: rgba(0, 0, 0, 0.005);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 4px;
    text-transform: uppercase;
}

.badge-input {
    background: rgba(14, 165, 233, 0.1);
    color: var(--accent-secondary);
}

.badge-output {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-success);
}

/* Results Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1.5rem;
}

.stat-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    margin-top: 0.25rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Details Info List */
.info-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.info-item {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    font-size: 0.9rem;
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.info-value {
    font-weight: 700;
}

.icon-accent {
    color: var(--accent-primary);
    margin-right: 0.4rem;
}

.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-2 { gap: 0.5rem; }