/**
 * PIN Entry Styles
 * 
 * A clean, modern numpad interface inspired by POS/kiosk systems.
 */

@import url('https://fonts.googleapis.com/css2?family=Kanit:wght@400;500;600;700&family=Space+Grotesk:wght@300;400;500;600&display=swap');

:root {
    --pin-primary: #f5a623;
    --pin-primary-light: #ffd699;
    --pin-primary-dark: #cc7a00;
    --pin-bg-start: #0a0a12;
    --pin-bg-end: #0d1020;
    --pin-surface: rgba(20, 22, 35, 0.95);
    --pin-text: #f0f0f5;
    --pin-text-muted: #8888aa;
    --pin-error: #ff3366;
    --pin-success: #00ff88;
    
    --font-display: 'Kanit', system-ui, sans-serif;
    --font-body: 'Space Grotesk', system-ui, sans-serif;
}

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

.pin-body {
    font-family: var(--font-body);
    background: linear-gradient(135deg, var(--pin-bg-start) 0%, var(--pin-bg-end) 100%);
    color: var(--pin-text);
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    -webkit-user-select: none;
    user-select: none;
}

/* Subtle grid background */
.pin-body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(245, 166, 35, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(245, 166, 35, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

/* Admin variant - different color scheme */
.pin-admin {
    --pin-primary: #00d4ff;
    --pin-primary-light: #66eaff;
    --pin-primary-dark: #0099cc;
}

.pin-admin::before {
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
}

.pin-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 400px;
    text-align: center;
}

/* Header */
.pin-header {
    margin-bottom: 2.5rem;
}

.pin-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 100px;
    background: rgba(245, 166, 35, 0.1);
    border: 2px solid rgba(245, 166, 35, 0.3);
    border-radius: 50%;
    margin-bottom: 1.5rem;
    color: var(--pin-primary);
    animation: pulse-glow 3s ease-in-out infinite;
}

.pin-admin .pin-icon {
    background: rgba(0, 212, 255, 0.1);
    border-color: rgba(0, 212, 255, 0.3);
}

@keyframes pulse-glow {
    0%, 100% { 
        box-shadow: 0 0 20px rgba(245, 166, 35, 0.2);
    }
    50% { 
        box-shadow: 0 0 40px rgba(245, 166, 35, 0.4);
    }
}

.pin-admin .pin-icon {
    animation-name: pulse-glow-admin;
}

@keyframes pulse-glow-admin {
    0%, 100% { 
        box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
    }
    50% { 
        box-shadow: 0 0 40px rgba(0, 212, 255, 0.4);
    }
}

.pin-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: linear-gradient(180deg, var(--pin-primary-light) 0%, var(--pin-primary) 50%, var(--pin-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 0.5rem 0;
}

.pin-subtitle {
    color: var(--pin-text-muted);
    font-size: 1rem;
    margin: 0;
}

/* Error Message */
.pin-error {
    background: rgba(255, 51, 102, 0.15);
    border: 1px solid var(--pin-error);
    color: var(--pin-error);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.animate-shake {
    animation: shake 0.5s ease-in-out;
}

/* PIN Display */
.pin-display {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.pin-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.2s ease;
}

.pin-dot.filled {
    background: var(--pin-primary);
    border-color: var(--pin-primary);
    box-shadow: 0 0 15px rgba(245, 166, 35, 0.5);
    transform: scale(1.1);
}

.pin-admin .pin-dot.filled {
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.5);
}

/* Numpad */
.numpad {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.numpad-row {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
}

.numpad-key {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.15);
    background: var(--pin-surface);
    color: var(--pin-text);
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.numpad-key:hover:not(:disabled) {
    background: rgba(245, 166, 35, 0.15);
    border-color: var(--pin-primary);
    transform: scale(1.05);
}

.pin-admin .numpad-key:hover:not(:disabled) {
    background: rgba(0, 212, 255, 0.15);
}

.numpad-key:active:not(:disabled) {
    background: var(--pin-primary);
    color: var(--pin-bg-start);
    transform: scale(0.95);
}

.numpad-key-hash {
    color: var(--pin-text-muted);
    cursor: default;
    opacity: 0.5;
}

.numpad-key-hash:hover {
    background: var(--pin-surface) !important;
    border-color: rgba(255, 255, 255, 0.15) !important;
    transform: none !important;
}

.numpad-key-backspace {
    font-size: 1.5rem;
    color: var(--pin-text-muted);
}

.numpad-key-backspace:hover:not(:disabled) {
    color: var(--pin-error);
    border-color: var(--pin-error);
    background: rgba(255, 51, 102, 0.1);
}

/* Back Link */
.pin-back {
    display: inline-block;
    margin-top: 2rem;
    color: var(--pin-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.pin-back:hover {
    color: var(--pin-primary);
}

/* Portrait Mode (Kiosk) */
@media (orientation: portrait) {
    .pin-icon {
        width: 120px;
        height: 120px;
    }
    
    .pin-icon svg {
        width: 72px;
        height: 72px;
    }
    
    .pin-title {
        font-size: 2.5rem;
    }
    
    .pin-subtitle {
        font-size: 1.2rem;
    }
    
    .pin-dot {
        width: 24px;
        height: 24px;
    }
    
    .numpad-key {
        width: 100px;
        height: 100px;
        font-size: 2.25rem;
    }
    
    .numpad {
        gap: 1rem;
    }
    
    .numpad-row {
        gap: 1rem;
    }
}

/* Extra large screens (kiosk) */
@media (min-height: 1400px) {
    .pin-container {
        max-width: 500px;
    }
    
    .pin-icon {
        width: 140px;
        height: 140px;
    }
    
    .pin-icon svg {
        width: 84px;
        height: 84px;
    }
    
    .pin-title {
        font-size: 3rem;
    }
    
    .pin-subtitle {
        font-size: 1.4rem;
    }
    
    .pin-display {
        gap: 1.25rem;
        margin-bottom: 3rem;
    }
    
    .pin-dot {
        width: 28px;
        height: 28px;
    }
    
    .numpad-key {
        width: 120px;
        height: 120px;
        font-size: 2.75rem;
    }
    
    .numpad {
        gap: 1.25rem;
    }
    
    .numpad-row {
        gap: 1.25rem;
    }
}