/* ===== PROFESSIONAL HOTEL PORTAL STYLES ===== */
/* Clean white design with elegant blue and gold accents */

/* Import Professional Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    /* Primary Hotel Color Palette */
    --primary-navy: #ad1706;
    --primary-blue: #800606;
    --accent-gold: #f50f0b;
    --light-gold: #710903;
    --dark-navy: #760808;
    
    /* Neutral Colors */
    --white: #ffffff;
    --off-white: #fafafa;
    --light-gray: #f8fafc;
    --medium-gray: #64748b;
    --dark-gray: #334155;
    --border-gray: #e2e8f0;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-gradient: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --text-on-dark: #ffffff;
    --placeholder-text: #94a3b8;
    
    /* Status Colors */
    --success-color: #10b981;
    --error-color: #650404;
    --warning-color: #f59e0b;
    --info-color: #f6ce3b;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index layers */
    --z-background: -1;
    --z-base: 1;
    --z-elevated: 10;
    --z-modal: 100;
}

/* ===== GLOBAL RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}

/* Subtle background pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(59, 130, 246, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(245, 158, 11, 0.02) 0%, transparent 50%);
    background-size: 200px 200px, 300px 300px;
    z-index: var(--z-background);
    animation: subtleFloat 15s ease-in-out infinite;
}

/* ===== HEADER LINE ===== */
.header-line {
    height: 4px;
    background: linear-gradient(90deg, var(--primary-navy), var(--accent-gold), var(--primary-blue));
    border-radius: 2px;
    margin-bottom: 20px;
    animation: headerLineExpand 1s ease-out;
}

/* ===== PORTAL TITLE ===== */
.portal-title {
    text-align: center;
    font-family: 'Playfair Display', serif;
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    animation: fadeInDown 0.6s ease-out;
}

/* ===== MAIN CONTAINER ===== */
.container {
    position: relative;
    width: 100%;
    max-width: 480px;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 40px;
    text-align: center;
    border: 1px solid var(--border-gray);
    animation: containerSlideUp 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
    overflow: hidden;
}

.container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-navy), var(--accent-gold), var(--primary-blue));
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.container::after {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.03) 0%, transparent 70%);
    border-radius: 50%;
    z-index: var(--z-background);
    animation: floatCircle 20s ease-in-out infinite;
}

/* ===== TYPOGRAPHY ===== */
h1 {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    position: relative;
    animation: titleFadeIn 0.6s ease-out 0.2s both;
}

h1::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-navy), var(--accent-gold));
    border-radius: 1px;
    animation: underlineGrow 0.8s ease-out 0.8s both;
}

h2 {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--primary-navy);
    margin-bottom: 20px;
    animation: fadeInUp 0.5s ease-out;
}

p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.7;
    animation: fadeInUp 0.5s ease-out 0.1s both;
}

/* ===== PIN INPUT STYLES ===== */
.pin-container {
    display: flex;
    justify-content: center;
    margin: 30px 0;
    perspective: 1000px;
}

.pin-input {
    width: 280px;
    height: 60px;
    font-size: 1.8rem;
    font-weight: 500;
    text-align: center;
    letter-spacing: 0.8rem;
    border: 2px solid var(--border-gray);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-normal);
    position: relative;
    box-shadow: var(--shadow-sm);
    animation: inputSlideIn 0.6s ease-out 0.4s both;
}

.pin-input::placeholder {
    color: var(--placeholder-text);
    font-weight: 400;
    letter-spacing: 0.2rem;
}

.pin-input:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1), var(--shadow-md);
    outline: none;
    transform: translateY(-2px);
    background: var(--light-gray);
}

.pin-input:focus::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--primary-blue), var(--accent-gold), var(--primary-navy));
    border-radius: var(--radius-md);
    z-index: -1;
    opacity: 0.1;
    animation: focusGlow 2s ease-in-out infinite;
}

/* ===== KEYPAD STYLES ===== */
.pin-keypad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    max-width: 300px;
    margin: 25px auto;
    transform-style: preserve-3d;
}

.pin-key {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-gray);
    border-radius: var(--radius-sm);
    padding: 16px;
    font-size: 1.2rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

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

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

.pin-key.delete {
    grid-column: span 3;
    background: var(--bg-primary);
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

.pin-key.delete:hover {
    background: var(--error-color);
    color: var(--text-on-dark);
}

/* ===== BUTTON STYLES ===== */
.button-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 25px 0;
}

.button {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    overflow: hidden;
    z-index: var(--z-base);
    animation: buttonFadeIn 0.5s ease-out;
}

.button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
    z-index: -1;
}

.button:hover::before {
    left: 100%;
}

/* Primary Button */
.button:not(.secondary) {
    background: linear-gradient(135deg, var(--primary-navy), var(--primary-blue));
    color: var(--text-on-dark);
    box-shadow: var(--shadow-md);
}

.button:not(.secondary):hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--dark-navy), var(--primary-navy));
}

.button:not(.secondary):active {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* Secondary Button */
.button.secondary {
    background: var(--bg-primary);
    color: var(--primary-navy);
    border: 2px solid var(--primary-navy);
    box-shadow: var(--shadow-sm);
}

.button.secondary:hover {
    background: var(--primary-navy);
    color: var(--text-on-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Specialized Hotel Buttons */
.button-maroon {
    background: linear-gradient(135deg, var(--primary-navy), var(--primary-blue));
    color: var(--text-on-dark);
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    width: 100%;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.button-maroon:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--dark-navy), var(--primary-navy));
}

.button-yellow {
    background: linear-gradient(135deg, var(--accent-gold), var(--light-gold));
    color: var(--text-on-dark);
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    width: 100%;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.button-yellow:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #d97706, var(--accent-gold));
}

/* ===== FORM STYLES ===== */
.form-group {
    margin-bottom: 24px;
    text-align: left;
    animation: fadeInUp 0.5s ease-out;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

input[type="text"],
input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-gray);
    border-radius: var(--radius-md);
    font-size: 1rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), var(--shadow-md);
    outline: none;
    transform: translateY(-1px);
    background: var(--light-gray);
}

/* ===== MESSAGE STYLES ===== */
.result-message {
    padding: 16px;
    border-radius: var(--radius-md);
    margin: 20px 0;
    text-align: center;
    font-weight: 500;
    position: relative;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    border-left: 4px solid;
}

.result-message:not(.hidden) {
    opacity: 1;
    transform: translateY(0);
    animation: messageSlideIn 0.5s ease-out;
}

.result-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    border-left-color: var(--error-color);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.1);
}

.result-message.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border-left-color: var(--success-color);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.1);
}

/* ===== UTILITY CLASSES ===== */
.hidden {
    display: none !important;
}

.card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 30px;
    margin-bottom: 20px;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-gray);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.animate-in {
    animation: fadeInUp 0.6s ease-out;
}

/* ===== PIN ANIMATIONS ===== */
.pin-input.success {
    animation: successPulse 0.6s ease-out;
    border-color: var(--success-color);
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
}

.pin-input.error {
    animation: errorShake 0.6s ease-out;
    border-color: var(--error-color);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.2);
}

/* ===== KEYFRAME ANIMATIONS ===== */
@keyframes containerSlideUp {
    0% {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes titleFadeIn {
    0% {
        opacity: 0;
        transform: translateY(-20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes underlineGrow {
    0% {
        width: 0;
    }
    100% {
        width: 60px;
    }
}

@keyframes inputSlideIn {
    0% {
        opacity: 0;
        transform: translateX(-30px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes buttonFadeIn {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    0% {
        opacity: 0;
        transform: translateY(-20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes messageSlideIn {
    0% {
        opacity: 0;
        transform: translateY(15px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes headerLineExpand {
    0% {
        width: 0;
    }
    100% {
        width: 100%;
    }
}

@keyframes focusGlow {
    0%, 100% {
        opacity: 0.1;
    }
    50% {
        opacity: 0.2;
    }
}

@keyframes subtleFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes floatCircle {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(30px, -30px) rotate(120deg);
    }
    66% {
        transform: translate(-20px, 20px) rotate(240deg);
    }
}

@keyframes successPulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
    100% {
        transform: scale(1);
    }
}

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

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .container {
        padding: 30px 25px;
        margin: 15px;
        max-width: 95%;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .pin-input {
        width: 240px;
        height: 50px;
        font-size: 1.6rem;
        letter-spacing: 0.6rem;
    }
    
    .button {
        padding: 12px 24px;
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .container {
        padding: 25px 20px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .pin-input {
        width: 200px;
        height: 45px;
        font-size: 1.4rem;
        letter-spacing: 0.4rem;
    }
    
    .button {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== FOCUS INDICATORS ===== */
.button:focus-visible,
.pin-input:focus-visible,
input:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* ===== LOADING STATES ===== */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.7;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--border-gray);
    border-top: 2px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* ===== HOTEL-SPECIFIC ENHANCEMENTS ===== */
.hotel-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--accent-gold), var(--light-gold));
    color: var(--text-on-dark);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
    animation: badgeSlideIn 0.8s ease-out 0.5s both;
}

@keyframes badgeSlideIn {
    0% {
        opacity: 0;
        transform: translateY(-10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}