:root {
    --bg: #05070a;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --primary: #00f2fe;
    --secondary: #4facfe;
    --accent: #ff007f;
    --success: #00ff88;
    --warning: #f1c40f;
    --text: #ffffff;
    --text-dim: #a0a0a0;
    --glass: rgba(15, 20, 30, 0.85);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

body.loading {
    opacity: 0;
}

/* Screens and General Layout */
.screen {
    flex: 1;
    padding: 20px;
    padding-bottom: 90px;
    overflow-y: auto;
}

.hide {
    display: none !important;
}

/* Glassmorphism Classes */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

/* Header & Profile */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 20px;
    color: #000;
}

.user-name {
    font-weight: 700;
    font-size: 18px;
}

.user-role {
    font-size: 13px;
    color: var(--text-dim);
}

.admin-glow {
    background: rgba(255, 0, 127, 0.2);
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    box-shadow: 0 0 15px rgba(255, 0, 127, 0.3);
}

/* Stats Bar */
.stats-bar {
    display: flex;
    background: var(--card-bg);
    border-radius: 20px;
    padding: 15px;
    margin-bottom: 30px;
}

.stat-card {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-card .val {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
}

.stat-card .lab {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    background: var(--card-border);
}

/* Tabs */
.tab-control {
    display: flex;
    background: rgba(255,255,255,0.05);
    padding: 4px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-dim);
    padding: 10px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 9px;
    transition: 0.3s;
}

.tab-btn.active {
    background: #fff;
    color: #000;
}

/* Duty List */
.duty-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 0;
    border-bottom: 1px solid var(--card-border);
}

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

.shift-time {
    font-size: 12px;
    color: var(--text-dim);
    width: 60px;
}

.shift-person {
    font-weight: 600;
    font-size: 15px;
}

/* Buttons */
.primary-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    padding: 16px;
    border-radius: 16px;
    font-weight: 800;
    font-size: 16px;
    color: #000;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0, 242, 254, 0.2);
}

.quick-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.action-btn {
    padding: 14px;
    border-radius: 16px;
    border: 1px solid var(--card-border);
    background: var(--card-bg);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* Registration */
#registration-screen {
    background: radial-gradient(circle at top right, #1a2a44, var(--bg));
    display: flex;
    align-items: center;
    justify-content: center;
}

.registration-glass {
    width: 100%;
    max-width: 350px;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    padding: 30px;
    border-radius: 30px;
    text-align: center;
}

.icon-circle {
    width: 70px;
    height: 70px;
    background: var(--primary);
    color: #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    margin: 0 auto 20px;
}

.input-group {
    text-align: left;
    margin-bottom: 15px;
}

.input-group label {
    display: block;
    font-size: 12px;
    color: var(--text-dim);
    margin-bottom: 6px;
    margin-left: 4px;
}

.input-group input, .input-group select {
    width: 100%;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--card-border);
    padding: 14px;
    border-radius: 14px;
    color: #fff;
    font-family: inherit;
    font-size: 15px;
}

.input-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.code-input {
    letter-spacing: 5px;
    text-align: center;
    font-weight: 800;
    color: var(--primary) !important;
    text-transform: uppercase;
}

/* Nav Bar */
.bottom-tabs {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    height: 65px;
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    z-index: 1000;
}

.tab-item {
    color: var(--text-dim);
    font-size: 20px;
}

.tab-item.active {
    color: var(--primary);
    filter: drop-shadow(0 0 8px var(--primary));
}

/* Admin Grid */
.admin-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.admin-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    position: relative;
}

.badge {
    position: absolute;
    top: 5px;
    right: 5px;
    background: var(--accent);
    color: #fff;
    font-size: 10px;
    font-weight: 800;
    padding: 2px 7px;
    border-radius: 10px;
}

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

.animate-up {
    animation: fadeInUp 0.5s ease forwards;
}

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

.animate-fade {
    animation: fadeIn 0.4s ease forwards;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 20px;
}

.modal {
    width: 100%;
    max-width: 400px;
    background: #111a2a;
    border: 1px solid var(--card-border);
    padding: 25px;
    border-radius: 25px;
    position: relative;
}

.close-modal {
    position: absolute;
    top: -15px;
    right: -10px;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: #fff;
    color: #000;
    border: none;
    font-size: 18px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
}