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

/* ========== THEME: CYBERPUNK (Default) ========== */
:root, .theme-cyberpunk {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a25;
    --accent: #00d4ff;
    --accent-glow: rgba(0, 212, 255, 0.3);
    --accent-rgb: 0, 212, 255;
    --success: #00ff88;
    --warning: #ffaa00;
    --danger: #ff4444;
    --text-primary: #ffffff;
    --text-secondary: #8888aa;
    --border: rgba(255, 255, 255, 0.1);
    --gauge-alt: #0088ff;
    --grid-opacity: 0.06;
    --grid-color: 0, 212, 255;
    --logo-grad-a: var(--accent);
    --logo-grad-b: #00ff88;
    --btn-grad-a: var(--accent);
    --btn-grad-b: #0088ff;
    --card-icon-grad-a: var(--accent);
    --card-icon-grad-b: #0088ff;
}

/* ========== THEME: MATRIX ========== */
.theme-matrix {
    --bg-primary: #000000;
    --bg-secondary: #001100;
    --bg-card: #001a00;
    --accent: #00ff41;
    --accent-glow: rgba(0, 255, 65, 0.3);
    --accent-rgb: 0, 255, 65;
    --success: #00ff41;
    --warning: #ccff00;
    --danger: #ff3333;
    --text-primary: #b0ffb0;
    --text-secondary: #339933;
    --border: rgba(0, 255, 65, 0.12);
    --gauge-alt: #00cc33;
    --grid-opacity: 0;
    --logo-grad-a: #00ff41;
    --logo-grad-b: #33ff77;
    --btn-grad-a: #00ff41;
    --btn-grad-b: #00aa2a;
    --card-icon-grad-a: #00ff41;
    --card-icon-grad-b: #009933;
}

/* ========== THEME: HACKER ========== */
.theme-hacker {
    --bg-primary: #0a0000;
    --bg-secondary: #150000;
    --bg-card: #1e0808;
    --accent: #ff2222;
    --accent-glow: rgba(255, 34, 34, 0.3);
    --accent-rgb: 255, 34, 34;
    --success: #00ff41;
    --warning: #ff6600;
    --danger: #ff0000;
    --text-primary: #ffffff;
    --text-secondary: #994444;
    --border: rgba(255, 34, 34, 0.12);
    --gauge-alt: #cc0000;
    --grid-opacity: 0.05;
    --grid-color: 255, 34, 34;
    --logo-grad-a: #ff2222;
    --logo-grad-b: #ff8800;
    --btn-grad-a: #ff2222;
    --btn-grad-b: #cc0000;
    --card-icon-grad-a: #ff2222;
    --card-icon-grad-b: #cc0000;
}

/* ========== LIGHT MODE OVERRIDES ========== */
.light-mode {
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #666680;
    --border: rgba(0, 0, 0, 0.1);
}

.light-mode.theme-cyberpunk {
    --accent: #0088cc;
    --accent-glow: rgba(0, 136, 204, 0.15);
    --success: #00aa55;
    --warning: #dd8800;
    --danger: #dd3333;
    --logo-grad-a: #0088cc;
    --logo-grad-b: #00aa55;
    --btn-grad-a: #0088cc;
    --btn-grad-b: #0066aa;
    --card-icon-grad-a: #0088cc;
    --card-icon-grad-b: #0066aa;
    --grid-opacity: 0.06;
    --grid-color: 0, 100, 180;
}

.light-mode.theme-matrix {
    --accent: #009933;
    --accent-glow: rgba(0, 153, 51, 0.12);
    --success: #009933;
    --warning: #99aa00;
    --danger: #cc3333;
    --text-primary: #1a2e1a;
    --text-secondary: #447744;
    --border: rgba(0, 100, 30, 0.12);
    --logo-grad-a: #009933;
    --logo-grad-b: #33aa55;
    --btn-grad-a: #009933;
    --btn-grad-b: #007722;
    --card-icon-grad-a: #009933;
    --card-icon-grad-b: #007722;
    --grid-opacity: 0.04;
    --grid-color: 0, 120, 40;
}

.light-mode.theme-hacker {
    --accent: #cc2222;
    --accent-glow: rgba(204, 34, 34, 0.12);
    --success: #009933;
    --warning: #dd6600;
    --danger: #cc0000;
    --text-primary: #2a1a1a;
    --text-secondary: #885555;
    --border: rgba(150, 30, 30, 0.12);
    --logo-grad-a: #cc2222;
    --logo-grad-b: #cc6600;
    --btn-grad-a: #cc2222;
    --btn-grad-b: #aa0000;
    --card-icon-grad-a: #cc2222;
    --card-icon-grad-b: #aa0000;
    --grid-opacity: 0.03;
    --grid-color: 180, 30, 30;
}

/* ========== LIGHT MODE ANIMATION OVERRIDES ========== */
.light-mode .hacker-scanlines {
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(204, 34, 34, 0.03) 2px,
        rgba(204, 34, 34, 0.03) 4px
    );
}
.light-mode .hacker-sweep {
    background: linear-gradient(180deg, transparent, rgba(204, 34, 34, 0.1), transparent);
}
.light-mode .hacker-flicker {
    animation: flickerLight 8s ease-in-out infinite;
}
@keyframes flickerLight {
    0%, 92%, 94%, 100% { background: transparent; }
    93% { background: rgba(204, 34, 34, 0.02); }
}
.light-mode .cyber-pulse {
    animation: cyberPulseLight 6s ease-in-out infinite;
}
@keyframes cyberPulseLight {
    0%, 100% { box-shadow: 0 0 80px 20px rgba(0, 136, 204, 0.04); }
    50% { box-shadow: 0 0 120px 40px rgba(0, 136, 204, 0.08); }
}
.light-mode .cyber-scanline {
    background: linear-gradient(90deg, transparent, rgba(0, 136, 204, 0.08), transparent);
}

/* ========== ANIMATIONS TOGGLE ========== */
.anim-toggle {
    position: fixed; top: 20px; right: 74px; z-index: 100;
    width: 44px; height: 44px; border-radius: 50%;
    border: 2px solid var(--border); cursor: pointer;
    background: var(--bg-card); color: var(--text-primary);
    font-size: 1.2rem; display: flex; align-items: center; justify-content: center;
    transition: all 0.3s ease; box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.anim-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    border-color: var(--accent);
}

.anim-toggle .icon-anim-on,
.anim-toggle .icon-anim-off {
    transition: opacity 0.3s ease, transform 0.3s ease;
    position: absolute;
}

.anim-toggle .icon-anim-on { opacity: 0; transform: scale(0.5); }
.anim-toggle .icon-anim-off { opacity: 1; transform: scale(1); }

.no-animations .anim-toggle .icon-anim-on { opacity: 1; transform: scale(1); }
.no-animations .anim-toggle .icon-anim-off { opacity: 0; transform: scale(0.5); }

.anim-status {
    position: fixed; top: 72px; right: 16px; z-index: 100;
    font-size: 0.6rem; color: var(--text-secondary);
    background: var(--bg-card); border: 1px solid var(--border);
    padding: 2px 8px; border-radius: 8px;
    opacity: 0; transition: opacity 0.3s ease; pointer-events: none;
}
.anim-status.show { opacity: 1; }

/* ========== NO ANIMATIONS MODE ========== */
.no-animations * {
    animation-duration: 0s !important;
    animation-delay: 0s !important;
}
.no-animations #matrixCanvas { display: none !important; }
.no-animations .hacker-scanlines { display: none !important; }
.no-animations .hacker-sweep { display: none !important; }
.no-animations .hacker-flicker { display: none !important; }
.no-animations .cyber-pulse { display: none !important; }
.no-animations .cyber-scanline { display: none !important; }
.no-animations .card:hover { box-shadow: none; border-color: var(--border); transition: none; }
.no-animations .detect-btn:hover { transform: none; transition: none; }
.no-animations .detect-btn.testing { animation: none; }
.no-animations .small-btn:hover { transform: none; }
.no-animations .theme-btn:hover { transform: none; }
.no-animations .mode-toggle:hover { transform: none; }
.no-animations .anim-toggle:hover { transform: none; }
.no-animations .status-dot.online { animation: none; }
.no-animations .progress-fill { transition: none; }
.no-animations .ping-bar-fill { transition: none; }

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background 0.4s ease, color 0.4s ease;
}

.card, .status-item, .modal, .select-btn, .data-estimate, .data-item,
.metric, .gauge-bg, .gauge-inner, .small-btn.primary, .small-btn.danger,
.history-table tr {
    transition: background 0.4s ease, color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

/* ========== MATRIX CANVAS ========== */
#matrixCanvas {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    z-index: 0; pointer-events: none; display: none;
}
.theme-cyberpunk #matrixCanvas,
.theme-matrix #matrixCanvas,
.theme-hacker #matrixCanvas { display: block; }

/* ========== HACKER SCANLINES ========== */
.hacker-scanlines {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(255, 34, 34, 0.04) 2px,
        rgba(255, 34, 34, 0.04) 4px
    );
    pointer-events: none; z-index: 0; display: none;
}
.theme-hacker .hacker-scanlines { display: block; }

.hacker-sweep {
    position: fixed; top: 0; left: 0; width: 100%; height: 6px;
    background: linear-gradient(180deg, transparent, rgba(255, 34, 34, 0.15), transparent);
    pointer-events: none; z-index: 0; display: none;
    animation: sweep 4s linear infinite;
}
.theme-hacker .hacker-sweep { display: block; }

@keyframes sweep {
    0% { top: -6px; }
    100% { top: 100vh; }
}

.hacker-flicker {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none; z-index: 0; display: none;
    animation: flicker 8s ease-in-out infinite;
}
.theme-hacker .hacker-flicker { display: block; }

@keyframes flicker {
    0%, 92%, 94%, 100% { background: transparent; }
    93% { background: rgba(255, 34, 34, 0.03); }
}

/* ========== CYBERPUNK GRID ANIMATION ========== */
.bg-grid {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-image:
        linear-gradient(rgba(var(--grid-color, 0, 212, 255), var(--grid-opacity)) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--grid-color, 0, 212, 255), var(--grid-opacity)) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none; z-index: 0;
}

.cyber-pulse {
    position: fixed; top: 50%; left: 50%;
    width: 600px; height: 600px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    pointer-events: none; z-index: 0; display: none;
    animation: cyberPulse 6s ease-in-out infinite;
}
.theme-cyberpunk .cyber-pulse { display: block; }

@keyframes cyberPulse {
    0%, 100% { box-shadow: 0 0 80px 20px rgba(0, 212, 255, 0.03); }
    50% { box-shadow: 0 0 120px 40px rgba(0, 212, 255, 0.07); }
}

.cyber-scanline {
    position: fixed; top: 0; left: 0; width: 100%; height: 2px;
    pointer-events: none; z-index: 0; display: none;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.12), transparent);
    animation: cyberScan 5s linear infinite;
}
.theme-cyberpunk .cyber-scanline { display: block; }

@keyframes cyberScan {
    0% { top: -2px; opacity: 0; }
    5% { opacity: 1; }
    95% { opacity: 1; }
    100% { top: 100vh; opacity: 0; }
}

/* ========== THEME TOGGLE ========== */
.theme-toggle {
    display: flex; justify-content: center; gap: 12px; margin-top: 12px;
}

.theme-btn {
    width: 36px; height: 36px; border-radius: 50%; border: 2px solid var(--border);
    cursor: pointer; transition: all 0.3s ease; position: relative;
    display: flex; align-items: center; justify-content: center;
}

.theme-btn:hover { transform: scale(1.15); }

.theme-btn.active {
    border-color: var(--accent);
    box-shadow: 0 0 15px var(--accent-glow), 0 0 30px var(--accent-glow);
    transform: scale(1.1);
}

.theme-btn.active::after {
    content: ''; position: absolute; bottom: -8px; left: 50%;
    transform: translateX(-50%); width: 4px; height: 4px;
    border-radius: 50%; background: var(--accent);
}

.theme-btn[data-theme="cyberpunk"] { background: linear-gradient(135deg, #00d4ff, #0088ff); }
.theme-btn[data-theme="matrix"] { background: linear-gradient(135deg, #00ff41, #006622); }
.theme-btn[data-theme="hacker"] { background: linear-gradient(135deg, #ff2222, #cc0000); }

.theme-label {
    text-align: center; font-size: 0.7rem; color: var(--text-secondary);
    margin-top: 4px; text-transform: uppercase; letter-spacing: 1px;
    min-height: 16px;
}

/* ========== DARK/LIGHT TOGGLE ========== */
.mode-toggle {
    position: fixed; top: 20px; right: 20px; z-index: 100;
    width: 44px; height: 44px; border-radius: 50%;
    border: 2px solid var(--border); cursor: pointer;
    background: var(--bg-card); color: var(--text-primary);
    font-size: 1.3rem; display: flex; align-items: center; justify-content: center;
    transition: all 0.3s ease; box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.mode-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    border-color: var(--accent);
}

.mode-toggle .icon-sun,
.mode-toggle .icon-moon {
    transition: opacity 0.3s ease, transform 0.3s ease;
    position: absolute;
}

.mode-toggle .icon-sun { opacity: 0; transform: rotate(-90deg) scale(0.5); }
.mode-toggle .icon-moon { opacity: 1; transform: rotate(0deg) scale(1); }

.light-mode .mode-toggle .icon-sun { opacity: 1; transform: rotate(0deg) scale(1); }
.light-mode .mode-toggle .icon-moon { opacity: 0; transform: rotate(90deg) scale(0.5); }

.container { max-width: 1200px; margin: 0 auto; padding: 20px; position: relative; z-index: 1; }

header { text-align: center; padding: 30px 0 10px; }

.logo {
    font-size: 3rem; font-weight: 800;
    background: linear-gradient(135deg, var(--logo-grad-a), var(--logo-grad-b));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle { color: var(--text-secondary); font-size: 1.1rem; margin-top: 5px; }

/* Main Detect Button */
.detect-section { text-align: center; margin: 30px 0; }

.detect-btn {
    padding: 20px 50px;
    border: none; border-radius: 16px;
    font-size: 1.3rem; font-weight: 700;
    cursor: pointer; transition: all 0.3s ease;
    text-transform: uppercase; letter-spacing: 2px;
    background: linear-gradient(135deg, var(--btn-grad-a), var(--btn-grad-b));
    color: white;
    box-shadow: 0 10px 40px var(--accent-glow);
}

.detect-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 50px var(--accent-glow);
}

.detect-btn:disabled {
    opacity: 0.6; cursor: not-allowed; transform: none;
}

.detect-btn.testing {
    background: linear-gradient(135deg, var(--warning), #ff6600);
    animation: pulse-btn 1.5s infinite;
}

.detect-btn.done { background: linear-gradient(135deg, var(--success), #00cc66); }

@keyframes pulse-btn {
    0%, 100% { box-shadow: 0 10px 40px rgba(255, 170, 0, 0.4); }
    50% { box-shadow: 0 10px 60px rgba(255, 170, 0, 0.7); }
}

.detect-status {
    margin-top: 15px; font-size: 1rem;
    color: var(--text-secondary);
    min-height: 24px;
}

/* Status Bar */
.status-bar {
    display: flex; justify-content: center; gap: 15px;
    margin-top: 20px; flex-wrap: wrap;
}

.status-item {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 16px; background: var(--bg-card);
    border-radius: 20px; border: 1px solid var(--border);
    font-size: 0.9rem;
}

.status-dot {
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--text-secondary);
}
.status-dot.online { background: var(--success); animation: pulse 2s infinite; }
.status-dot.offline { background: var(--danger); }
.status-dot.wifi { background: var(--accent); }
.status-dot.mobile { background: var(--warning); }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* Results Grid */
.main-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 20px; margin-top: 30px;
}

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

.card {
    background: var(--bg-card); border-radius: 16px;
    padding: 24px; border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.card:hover { border-color: var(--accent); box-shadow: 0 0 30px var(--accent-glow); }

.card-header {
    display: flex; align-items: center; gap: 12px; margin-bottom: 20px;
}

.card-icon {
    width: 40px; height: 40px; border-radius: 10px;
    background: linear-gradient(135deg, var(--card-icon-grad-a), var(--card-icon-grad-b));
    display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
}

.card-title { font-size: 1.1rem; font-weight: 600; }

.speed-gauge {
    width: 180px; height: 180px; margin: 0 auto 20px; position: relative;
}

.gauge-bg {
    width: 100%; height: 100%; border-radius: 50%;
    background: conic-gradient(var(--bg-secondary) 0deg, var(--bg-secondary) 300deg, var(--border) 300deg, var(--border) 360deg);
    display: flex; align-items: center; justify-content: center;
}

.gauge-inner {
    width: 140px; height: 140px; border-radius: 50%; background: var(--bg-card);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
}

.gauge-value { font-size: 2.2rem; font-weight: 700; color: var(--accent); }
.gauge-unit { font-size: 0.85rem; color: var(--text-secondary); }

.gauge-progress {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    border-radius: 50%;
    background: conic-gradient(var(--accent) 0deg, var(--accent) var(--progress, 0deg), transparent var(--progress, 0deg), transparent 300deg);
    mask: radial-gradient(transparent 60px, black 61px, black 90px, transparent 91px);
    -webkit-mask: radial-gradient(transparent 60px, black 61px, black 90px, transparent 91px);
}

.metrics-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }

.metric {
    background: var(--bg-secondary); padding: 14px; border-radius: 10px; text-align: center;
}

.metric-label {
    font-size: 0.75rem; color: var(--text-secondary);
    margin-bottom: 6px; text-transform: uppercase; letter-spacing: 1px;
}

.metric-value { font-size: 1.3rem; font-weight: 700; color: var(--accent); }
.metric-value.good { color: var(--success); }
.metric-value.warning { color: var(--warning); }
.metric-value.bad { color: var(--danger); }

.progress-bar {
    width: 100%; height: 6px; background: var(--bg-secondary);
    border-radius: 3px; overflow: hidden; margin-top: 15px;
}

.progress-fill {
    height: 100%; background: linear-gradient(90deg, var(--accent), var(--success));
    border-radius: 3px; transition: width 0.3s ease; width: 0%;
}

/* Info Card */
.full-width { grid-column: 1 / -1; }

.info-list { list-style: none; }

.info-list li {
    display: flex; justify-content: space-between;
    padding: 10px 0; border-bottom: 1px solid var(--border);
}

.info-list li:last-child { border-bottom: none; }
.info-label { color: var(--text-secondary); }
.info-value { font-weight: 600; }

/* Ping Visualization */
.ping-visualization {
    display: flex; gap: 3px; justify-content: center;
    margin: 15px 0; flex-wrap: wrap;
}

.ping-bar {
    width: 6px; height: 35px; background: var(--bg-secondary);
    border-radius: 3px; position: relative; overflow: hidden;
}

.ping-bar-fill {
    position: absolute; bottom: 0; left: 0; width: 100%;
    background: var(--accent); border-radius: 3px; transition: height 0.3s ease;
}

/* History */
.history-table { width: 100%; border-collapse: collapse; margin-top: 15px; }

.history-table th, .history-table td {
    padding: 10px; text-align: left; border-bottom: 1px solid var(--border);
}

.history-table th {
    color: var(--text-secondary); font-weight: 600;
    text-transform: uppercase; font-size: 0.75rem; letter-spacing: 1px;
}

.history-table tr:hover { background: var(--bg-secondary); }

.rating-badge {
    display: inline-block; padding: 3px 10px;
    border-radius: 15px; font-size: 0.75rem; font-weight: 600;
}

.rating-excellent { background: rgba(0, 255, 136, 0.2); color: var(--success); }
.rating-good { background: rgba(0, 212, 255, 0.2); color: var(--accent); }
.rating-average { background: rgba(255, 170, 0, 0.2); color: var(--warning); }
.rating-slow { background: rgba(255, 68, 68, 0.2); color: var(--danger); }

.btn-row { display: flex; gap: 10px; margin-top: 15px; flex-wrap: wrap; }

.small-btn {
    padding: 8px 16px; border: none; border-radius: 8px;
    font-size: 0.85rem; font-weight: 600; cursor: pointer; transition: all 0.3s ease;
}

.small-btn.primary { background: var(--accent); color: white; }
.small-btn.danger { background: var(--danger); color: white; }
.small-btn:hover { transform: translateY(-2px); }

/* Modal */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex; align-items: center; justify-content: center;
    z-index: 1000; opacity: 0; visibility: hidden; transition: all 0.3s ease;
}

.modal-overlay.active { opacity: 1; visibility: visible; }

.modal {
    background: var(--bg-card); border-radius: 20px;
    padding: 30px; max-width: 420px; width: 90%;
    border: 1px solid var(--border);
    transform: scale(0.9); transition: transform 0.3s ease;
}

.modal-overlay.active .modal { transform: scale(1); }

.modal-icon {
    width: 60px; height: 60px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 2rem; margin: 0 auto 20px;
}

.modal-title { text-align: center; font-size: 1.3rem; margin-bottom: 15px; }

.modal-text {
    text-align: center; color: var(--text-secondary);
    margin-bottom: 20px; line-height: 1.6;
}

.modal-buttons { display: flex; gap: 10px; }

.modal-buttons .small-btn { flex: 1; padding: 12px; font-size: 1rem; }

.data-estimate {
    background: var(--bg-secondary); padding: 15px;
    border-radius: 10px; margin-bottom: 20px;
}

.data-estimate-title { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 10px; }

.data-estimate-items { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

.data-item {
    text-align: center; padding: 8px;
    background: var(--bg-card); border-radius: 6px;
}

.data-item-value { font-size: 1rem; font-weight: 700; color: var(--accent); }
.data-item-label { font-size: 0.7rem; color: var(--text-secondary); margin-top: 2px; }

/* Manual Select Buttons */
.select-btns { display: grid; gap: 10px; margin-top: 20px; }

.select-btn {
    padding: 14px; border: 2px solid var(--border); border-radius: 12px;
    background: var(--bg-secondary); color: white;
    font-size: 1rem; font-weight: 600; cursor: pointer;
    display: flex; align-items: center; justify-content: center; gap: 10px;
    transition: all 0.3s ease;
}

.select-btn:hover { border-color: var(--accent); background: var(--bg-card); }

.select-btn .icon { font-size: 1.5rem; }

footer { text-align: center; padding: 40px 0; color: var(--text-secondary); font-size: 0.85rem; }

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