:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --card-bg: rgba(255, 255, 255, 0.05);
    --text: #f8fafc;
    --text-muted: #94a3b8;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    background: var(--bg-gradient);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    overflow: hidden;
}

.kiosk-container {
    width: 100%;
    max-width: 500px;
    padding: 2rem;
    text-align: center;
}

.clock-container {
    margin-bottom: 3rem;
}

#live-clock {
    font-size: 5rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 0.5rem;
    background: linear-gradient(to bottom, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

#live-date {
    font-size: 1.2rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.input-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem 2rem;
    border-radius: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.input-card h2 {
    margin-bottom: 2rem;
    font-size: 1.5rem;
    font-weight: 500;
}

.pin-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 1.5rem;
    font-size: 2.5rem;
    color: #fff;
    text-align: center;
    margin-bottom: 2rem;
    letter-spacing: 1rem;
    transition: all 0.3s ease;
}

.pin-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.btn-register {
    width: 100%;
    background: var(--primary);
    color: white;
    border: none;
    padding: 1.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    border-radius: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-register:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

/* Feedback Modal */
.modal-feedback {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.85);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.modal-content {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem;
    border-radius: 2rem;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: popIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    max-width: 450px;
    width: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

@keyframes popIn {
    0% { transform: scale(0.8); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

.user-photo {
    width: 130px;
    height: 130px;
    border-radius: 50%;
    border: 4px solid var(--primary);
    margin-bottom: 1.5rem;
    object-fit: cover;
    background-color: #1e293b;
}

.status-icon {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.success-msg { color: #22c55e; font-size: 1.2rem; font-weight: 500; margin-top: 0.5rem; }
.error-msg { color: #ef4444; font-size: 1.2rem; font-weight: 500; margin-top: 0.5rem; }

/* Botón Flotante Admin */
.btn-admin-floating {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    color: var(--text-muted);
    padding: 0.75rem 1.5rem;
    border-radius: 99px;
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
    z-index: 100;
}

.btn-admin-floating:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.2);
}