:root {
    --bg-main: #0a0f1c;
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-hover: rgba(255, 255, 255, 0.08);
    --border-glass: rgba(255, 255, 255, 0.08);
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --accent-cyan: #00e5ff;
    --accent-purple: #b042ff;
    --accent-coral: #ff5a5f;
    --gradient-primary: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background Effects */
.bg-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.15) 0%, rgba(10, 15, 28, 0) 70%);
    top: -200px;
    left: -200px;
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
}

.bg-glow-2 {
    position: fixed;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(176, 66, 255, 0.1) 0%, rgba(10, 15, 28, 0) 70%);
    bottom: -100px;
    right: -100px;
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
}

/* Navbar */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 4rem;
    background: rgba(10, 15, 28, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.nav-links a:hover::after, .nav-links a.active::after {
    width: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 0.8rem 1.8rem;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 229, 255, 0.2);
}

/* Main Dashboard */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.hero {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeIn 1s ease-out;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.feature-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
    transition: all 0.4s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    background: var(--bg-glass-hover);
    border-color: rgba(0, 229, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
}

.icon-fall {
    color: var(--accent-coral);
    box-shadow: 0 0 20px rgba(255, 90, 95, 0.2);
}

.icon-game {
    color: var(--accent-cyan);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
}

.feature-card h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.card-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-cyan);
    font-weight: 600;
    text-decoration: none;
    transition: gap 0.3s ease;
}

.feature-card:hover .card-action {
    gap: 1rem;
}

/* Workspace App Area */
.app-container {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    padding: 2rem;
    display: flex;
    gap: 2rem;
    min-height: 600px;
    backdrop-filter: blur(10px);
}

.camera-view {
    flex: 2;
    background: #000;
    border-radius: 16px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.camera-view video, .camera-view canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.camera-overlay {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: rgba(0, 0, 0, 0.6);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    backdrop-filter: blur(5px);
    z-index: 10;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #00ff00;
    box-shadow: 0 0 10px #00ff00;
    animation: pulse 2s infinite;
}

.status-dot.danger {
    background: var(--accent-coral);
    box-shadow: 0 0 10px var(--accent-coral);
    animation: pulse-fast 0.5s infinite;
}

.side-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 1.5rem;
}

.info-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.alert-box {
    background: rgba(255, 90, 95, 0.1);
    border: 1px solid rgba(255, 90, 95, 0.3);
    border-radius: 12px;
    padding: 1rem;
    display: none;
}

.alert-box.active {
    display: block;
    animation: slideInRight 0.3s ease;
}

.alert-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-coral);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

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

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

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.05); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

@keyframes pulse-fast {
    0% { transform: scale(0.9); opacity: 0.8; }
    50% { transform: scale(1.2); opacity: 1; }
    100% { transform: scale(0.9); opacity: 0.8; }
}

/* Game Elements */
.game-target {
    position: absolute;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    z-index: 5;
    transition: all 0.2s ease;
    animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popIn {
    0% { transform: scale(0); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.score-display {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(0, 0, 0, 0.6);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--accent-cyan);
    backdrop-filter: blur(5px);
    z-index: 10;
}

/* Login Page Styles */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background: var(--bg-main);
}

.login-container {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    padding: 3rem;
    width: 100%;
    max-width: 450px;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    text-align: center;
    animation: fadeIn 0.5s ease;
}

.login-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.input-group input {
    width: 100%;
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid var(--border-glass);
    background: rgba(0, 0, 0, 0.2);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease;
    outline: none;
}

.input-group input:focus {
    border-color: var(--accent-cyan);
}

.login-btn {
    width: 100%;
    padding: 1rem;
    margin-top: 1rem;
    font-size: 1.1rem;
}

/* Data Dashboard */
.data-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.data-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(10px);
}

.data-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.data-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.data-list li {
    background: rgba(0, 0, 0, 0.2);
    border-left: 4px solid var(--border-glass);
    padding: 1rem;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: transform 0.3s ease;
}

.data-list li:hover {
    transform: translateX(5px);
    background: rgba(255, 255, 255, 0.05);
}

.data-list.fall-list li {
    border-left-color: var(--accent-coral);
}

.data-list.game-list li {
    border-left-color: var(--accent-cyan);
}

.data-item-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.2rem;
}

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

.data-item-value {
    font-weight: 700;
    font-size: 1.2rem;
}

.data-list.fall-list .data-item-value {
    color: var(--accent-coral);
}

.data-list.game-list .data-item-value {
    color: var(--accent-cyan);
}

.empty-state {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Toast Notification (Phase 2 Enhancement) */
.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    background: rgba(255, 90, 95, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 1.2rem 1.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(255, 90, 95, 0.5);
    display: flex;
    align-items: center;
    gap: 1.2rem;
    animation: slideInRight 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), fadeOut 0.5s ease 4.5s forwards;
    backdrop-filter: blur(10px);
}

.toast strong {
    font-size: 1.15rem;
    display: block;
    margin-bottom: 0.3rem;
}

@keyframes fadeOut {
    to { opacity: 0; transform: translateX(120%); }
}

/* Patient Management (Phase 3) */
.patient-item {
    align-items: flex-start !important;
}
.patient-info {
    flex: 1;
}
.p-header {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}
.p-header span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.p-details {
    color: var(--text-secondary);
    font-size: 0.85rem;
}
.active-patient-banner {
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid rgba(0, 229, 255, 0.3);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-primary);
    font-weight: 500;
}
.active-patient-banner i {
    color: var(--accent-cyan);
    font-size: 1.2rem;
}