/* ============================================================
   DroidAI Custom CSS — Design System
   Theme: Deep Space / Midnight Refined
   Font: Sora (Google Fonts)
   Accent: Cyan/Teal + Amber
   ============================================================ */

/* ---- Google Fonts Import ---- */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700&display=swap');

/* ---- CSS Variables ---- */
:root {
    --color-bg-primary: #0b0f1a;
    --color-bg-secondary: #111827;
    --color-bg-card: #161b27;
    --color-bg-card-hover: #1c2333;
    --color-bg-input: #1a2035;
    --color-border: #2a3147;
    --color-border-hover: #3d4a6b;
    --color-text-primary: #e2e8f0;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    --color-accent: #22d3ee;       /* Cyan */
    --color-accent-secondary: #f59e0b; /* Amber */
    --color-accent-purple: #a78bfa;
    --color-accent-gradient: linear-gradient(135deg, #22d3ee 0%, #a78bfa 100%);
    --color-accent-gradient-warm: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
    --color-success: #34d399;
    --color-warning: #fbbf24;
    --color-error: #f87171;
    --color-info: #60a5fa;
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 20px rgba(34, 211, 238, 0.15);
    --shadow-glow-warm: 0 0 20px rgba(245, 158, 11, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Base Reset & Typography ---- */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Sora', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---- Entrance Animations ---- */
@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeSlideDown {
    from {
        opacity: 0;
        transform: translateY(-16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 12px rgba(34, 211, 238, 0.2); }
    50% { box-shadow: 0 0 28px rgba(34, 211, 238, 0.45); }
}

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

/* ---- Staggered entrance for page content ---- */
.animate-enter {
    animation: fadeSlideUp 0.5s ease-out both;
}

.animate-enter-1 { animation-delay: 0.05s; }
.animate-enter-2 { animation-delay: 0.1s; }
.animate-enter-3 { animation-delay: 0.15s; }
.animate-enter-4 { animation-delay: 0.2s; }
.animate-enter-5 { animation-delay: 0.25s; }
.animate-enter-6 { animation-delay: 0.3s; }

.animate-fade-in {
    animation: fadeIn 0.4s ease-out both;
}

/* ---- Custom Scrollbar ---- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-border-hover);
}

/* ---- Selection Color ---- */
::selection {
    background: rgba(34, 211, 238, 0.25);
    color: #fff;
}

/* ---- Focus Styles ---- */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* ---- Navbar ---- */
.navbar {
    background-color: rgba(11, 15, 26, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.4rem;
    letter-spacing: -0.02em;
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-link {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background var(--transition-fast);
}

.navbar-link:hover,
.navbar-link.active {
    color: var(--color-accent);
    background: rgba(34, 211, 238, 0.08);
}

/* ---- Cards ---- */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: border-color var(--transition-base),
                box-shadow var(--transition-base),
                background var(--transition-base),
                transform var(--transition-base);
}

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

/* Subtle lift on hover */
.card-lift {
    transition: transform var(--transition-base),
                box-shadow var(--transition-base),
                border-color var(--transition-base);
}

.card-lift:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), var(--shadow-glow);
}

/* Glow border on hover */
.card-glow:hover {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 1px var(--color-accent), var(--shadow-glow);
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    text-decoration: none;
}

.btn:active {
    transform: scale(0.97);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Primary gradient button */
.btn-primary {
    background: var(--color-accent-gradient);
    color: #0b0f1a;
    box-shadow: 0 2px 12px rgba(34, 211, 238, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 4px 20px rgba(34, 211, 238, 0.5);
    filter: brightness(1.08);
}

/* Secondary/ghost button */
.btn-secondary {
    background: var(--color-bg-card);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(34, 211, 238, 0.06);
}

/* Danger button */
.btn-danger {
    background: rgba(248, 113, 113, 0.15);
    color: var(--color-error);
    border: 1px solid rgba(248, 113, 113, 0.3);
}

.btn-danger:hover {
    background: rgba(248, 113, 113, 0.25);
    border-color: var(--color-error);
}

/* Ghost/icon button */
.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--color-text-primary);
}

/* ---- Form Inputs ---- */
.form-input {
    width: 100%;
    padding: 0.7rem 1rem;
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: border-color var(--transition-fast),
                box-shadow var(--transition-fast),
                background var(--transition-fast);
    outline: none;
}

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

.form-input:hover {
    border-color: var(--color-border-hover);
}

.form-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
    background: rgba(26, 32, 53, 0.8);
}

/* ---- Badges / Status Pills ---- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.badge-pending   { background: rgba(251, 191, 36, 0.15); color: var(--color-warning); }
.badge-processing { background: rgba(96, 165, 250, 0.15); color: var(--color-info); }
.badge-completed { background: rgba(52, 211, 153, 0.15); color: var(--color-success); }
.badge-failed    { background: rgba(248, 113, 113, 0.15); color: var(--color-error); }

/* ---- Alert / Message Boxes ---- */
.alert {
    padding: 0.85rem 1.1rem;
    border-radius: var(--radius-md);
    border: 1px solid;
    font-size: 0.875rem;
    animation: scaleIn 0.25s ease-out both;
}

.alert-success {
    background: rgba(52, 211, 153, 0.1);
    border-color: rgba(52, 211, 153, 0.35);
    color: var(--color-success);
}

.alert-error {
    background: rgba(248, 113, 113, 0.1);
    border-color: rgba(248, 113, 113, 0.35);
    color: var(--color-error);
}

.alert-warning {
    background: rgba(251, 191, 36, 0.1);
    border-color: rgba(251, 191, 36, 0.35);
    color: var(--color-warning);
}

.alert-info {
    background: rgba(96, 165, 250, 0.1);
    border-color: rgba(96, 165, 250, 0.35);
    color: var(--color-info);
}

/* ---- Loading Overlay ---- */
.loading-overlay {
    background: rgba(11, 15, 26, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* Elegant spinner */
.spinner {
    width: 44px;
    height: 44px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.85s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

/* Shimmer loading for skeleton */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-border) 25%,
        rgba(42, 49, 71, 0.5) 50%,
        var(--color-border) 75%
    );
    background-size: 200% auto;
    animation: shimmer 1.6s linear infinite;
    border-radius: var(--radius-sm);
}

/* ---- Gradient Text ---- */
.gradient-text {
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-warm {
    background: var(--color-accent-gradient-warm);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ---- Divider ---- */
.divider {
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        var(--color-border),
        transparent
    );
}

/* ---- Footer ---- */
.site-footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: 2rem 0;
}

.site-footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    text-align: center;
}

.site-footer-brand {
    font-weight: 700;
    font-size: 1rem;
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.site-footer-text {
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

.site-footer-links {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    flex-wrap: wrap;
}

.site-footer-links a {
    color: var(--color-text-muted);
    font-size: 0.8rem;
    transition: color var(--transition-fast);
    text-decoration: none;
}

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

/* ---- Empty State ---- */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem;
    text-align: center;
}

.empty-state-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
    opacity: 0.35;
}

.empty-state-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 0.4rem;
}

.empty-state-desc {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    max-width: 280px;
}

/* ---- Table Styles ---- */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: rgba(42, 49, 71, 0.4);
}

.data-table th {
    padding: 0.85rem 1.25rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--color-border);
}

.data-table td {
    padding: 0.9rem 1.25rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    border-bottom: 1px solid rgba(42, 49, 71, 0.5);
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: rgba(34, 211, 238, 0.04);
}

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

/* ---- Modal ---- */
.modal-overlay {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.modal-box {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
    animation: scaleIn 0.3s cubic-bezier(0.4, 0, 0.2, 1) both;
}

/* ---- Progress Bar ---- */
.progress-track {
    background: var(--color-border);
    border-radius: 999px;
    overflow: hidden;
    height: 6px;
}

.progress-fill {
    height: 100%;
    border-radius: 999px;
    background: var(--color-accent-gradient);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Upload Zone ---- */
.upload-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-base),
                background var(--transition-base);
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--color-accent);
    background: rgba(34, 211, 238, 0.04);
}

/* ---- Stat Cards ---- */
.stat-card {
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-accent-gradient);
    opacity: 0.7;
}

.stat-card-cyan::before {
    background: linear-gradient(90deg, var(--color-accent), #06b6d4);
}

.stat-card-amber::before {
    background: var(--color-accent-gradient-warm);
}

.stat-card-green::before {
    background: linear-gradient(90deg, var(--color-success), #10b981);
}

.stat-card-blue::before {
    background: linear-gradient(90deg, var(--color-info), #3b82f6);
}

/* ---- Utility ---- */
.text-accent { color: var(--color-accent); }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }

/* ---- Announcement Marquee ---- */
.announcement-bar {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    border-bottom: none;
}

@keyframes marquee-scroll {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.announcement-marquee {
    overflow: hidden;
    white-space: nowrap;
}

.announcement-track {
    display: inline-block;
    animation: marquee-scroll 12s linear infinite;
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
}

.announcement-track:hover {
    animation-play-state: paused;
}