/* Security Page Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* YumYum Foods Authentic Brand Colors */
    --yumyum-red: #EE161F;           /* Primary brand red */
    --yumyum-red-dark: #C41E3A;      /* Darker red for hover states */
    --yumyum-yellow: #FFD700;        /* Brand yellow */
    --yumyum-yellow-light: #FFE55C;  /* Light yellow for accents */
    --yumyum-green: #228B22;         /* Forest green accent */
    --yumyum-green-light: #32CD32;   /* Light green for success states */
    --yumyum-white: #FFFFFF;         /* Clean white background */
    --yumyum-gray: #F8F9FA;          /* Light gray for subtle backgrounds */
    
    /* Color Palette - YumYum Branded */
    --primary-color: var(--yumyum-red);
    --primary-dark: var(--yumyum-red-dark);
    --secondary-color: #6B7280;
    --accent-color: var(--yumyum-yellow);
    --success-color: var(--yumyum-green);
    --warning-color: #F59E0B;
    --danger-color: #DC2626;
    --error-color: #DC2626;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, #FFFFFF 0%, #FEF2F2 25%, #FFFFFF 50%, #F0FDF4 75%, #FFFFFF 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    min-height: 100vh;
    color: #1a1a1a;
    line-height: 1.6;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(238, 22, 31, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 215, 0, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(34, 139, 34, 0.02) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.security-container {
    width: 100%;
    max-width: 400px;
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

/* Security Header */
.security-header {
    text-align: center;
    color: var(--white);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.logo i {
    font-size: var(--font-size-3xl);
    color: var(--accent-color);
}

.logo h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--yumyum-red);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.security-subtitle {
    font-size: var(--font-size-lg);
    color: var(--yumyum-red);
    opacity: 0.9;
    font-weight: 500;
}

/* Security Card */
.security-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.security-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--yumyum-red), var(--yumyum-yellow));
}

.security-icon {
    margin-bottom: var(--space-6);
}

.security-icon i {
    font-size: var(--font-size-4xl);
    color: var(--yumyum-red);
    background: var(--yumyum-gray);
    padding: var(--space-4);
    border-radius: var(--radius-full);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.security-card h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--space-2);
}

.security-description {
    color: var(--gray-600);
    margin-bottom: var(--space-8);
    font-size: var(--font-size-base);
}

/* PIN Display */
.pin-display {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}

.pin-dot {
    width: 16px;
    height: 16px;
    border-radius: var(--radius-full);
    border: 2px solid var(--gray-300);
    background: var(--white);
    transition: all 0.3s ease;
    position: relative;
}

.pin-dot.filled {
    border-color: var(--yumyum-red);
    background: var(--yumyum-red);
    transform: scale(1.1);
}

.pin-dot.error {
    border-color: var(--error-color);
    background: var(--error-color);
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Messages */
.error-message, .success-message {
    display: none;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-6);
    font-weight: 500;
    animation: slideDown 0.3s ease-out;
}

.error-message {
    background: #fef2f2;
    color: var(--error-color);
    border: 1px solid #fecaca;
}

.success-message {
    background: #f0fdf4;
    color: var(--success-color);
    border: 1px solid #bbf7d0;
}

.error-message.show, .success-message.show {
    display: flex;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* PIN Keypad */
.pin-keypad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.pin-key {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-800);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60px;
    user-select: none;
}

.pin-key:hover {
    border-color: var(--yumyum-red);
    background: var(--yumyum-gray);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.pin-key:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.pin-key-clear, .pin-key-submit {
    background: var(--yumyum-red);
    color: var(--white);
    border-color: var(--yumyum-red);
}

.pin-key-clear:hover, .pin-key-submit:hover {
    background: var(--yumyum-red-dark);
    border-color: var(--yumyum-red-dark);
}

.pin-key-submit {
    background: var(--yumyum-green);
    border-color: var(--yumyum-green);
}

.pin-key-submit:hover {
    background: var(--yumyum-green-light);
    border-color: var(--yumyum-green-light);
}

/* Security Info */
.security-info {
    background: var(--yumyum-gray);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    text-align: left;
}

.security-info p {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin-bottom: var(--space-2);
}

.security-info p:last-child {
    margin-bottom: 0;
}

.security-info i {
    color: var(--yumyum-red);
    width: 16px;
}

/* Security Footer */
.security-footer {
    text-align: center;
    color: var(--yumyum-red);
    opacity: 0.8;
}

.security-footer p {
    margin-bottom: var(--space-2);
    font-size: var(--font-size-sm);
}

/* Loading Overlay */
.loading-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;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

.loading-spinner {
    text-align: center;
    color: var(--white);
}

.loading-spinner i {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-4);
    color: var(--yumyum-red);
}

.loading-spinner p {
    font-size: var(--font-size-lg);
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 480px) {
    .security-container {
        padding: var(--space-2);
    }
    
    .security-card {
        padding: var(--space-6);
    }
    
    .pin-key {
        min-height: 50px;
        font-size: var(--font-size-lg);
    }
    
    .pin-keypad {
        gap: var(--space-2);
    }
    
    .logo h1 {
        font-size: var(--font-size-2xl);
    }
    
    .security-icon i {
        font-size: var(--font-size-3xl);
        width: 60px;
        height: 60px;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

/* Focus States for Accessibility */
.pin-key:focus {
    outline: 2px solid var(--yumyum-red);
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .pin-dot {
        border-width: 3px;
    }
    
    .pin-key {
        border-width: 3px;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    .pin-dot, .pin-key, .error-message, .success-message {
        transition: none;
    }
    
    .pin-dot.error {
        animation: none;
    }
}