/* ===================================
   ERROR PAGES - PROFESSIONAL DESIGN
   =================================== */

:root {
    /* Color Palette - Elegant & Professional */
    --color-primary: #1a1a2e;
    --color-secondary: #16213e;
    --color-accent: #0f4c75;
    --color-accent-light: #3282b8;
    --color-success: #2ecc71;
    --color-warning: #f39c12;
    --color-error: #e74c3c;
    
    /* Neutral Colors */
    --color-bg: #f8f9fa;
    --color-surface: #ffffff;
    --color-text-primary: #2c3e50;
    --color-text-secondary: #7f8c8d;
    --color-border: #e1e8ed;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Typography */
    --font-display: 'Playfair Display', serif;
    --font-body: 'DM Sans', sans-serif;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
    
    /* Animations */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===================================
   RESET & BASE STYLES
   =================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

/* Grain Overlay Effect */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.03;
    z-index: 1;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    animation: grain 8s steps(10) infinite;
}

@keyframes grain {
    0%, 100% { transform: translate(0, 0); }
    10% { transform: translate(-5%, -10%); }
    20% { transform: translate(-15%, 5%); }
    30% { transform: translate(7%, -25%); }
    40% { transform: translate(-5%, 25%); }
    50% { transform: translate(-15%, 10%); }
    60% { transform: translate(15%, 0%); }
    70% { transform: translate(0%, 15%); }
    80% { transform: translate(3%, 35%); }
    90% { transform: translate(-10%, 10%); }
}

/* ===================================
   CONTAINER & LAYOUT
   =================================== */

.container {
    width: 100%;
    max-width: 1200px;
    padding: var(--spacing-lg);
    position: relative;
    z-index: 10;
}

.content-wrapper {
    position: relative;
    background: var(--color-surface);
    border-radius: 24px;
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: fadeInUp 0.8s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   DECORATIVE ELEMENTS
   =================================== */

.decoration-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.05;
    pointer-events: none;
}

.circle-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    top: -200px;
    right: -200px;
    animation: float 20s ease-in-out infinite;
}

.circle-2 {
    width: 300px;
    height: 300px;
    background: linear-gradient(225deg, var(--color-accent-light), var(--color-accent));
    bottom: -150px;
    left: -150px;
    animation: float 25s ease-in-out infinite reverse;
}

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

.decoration-line {
    position: absolute;
    width: 2px;
    height: 100px;
    background: linear-gradient(to bottom, transparent, var(--color-accent), transparent);
    opacity: 0.1;
}

.line-1 {
    top: 10%;
    left: 10%;
    animation: lineSlide 3s ease-in-out infinite;
}

.line-2 {
    bottom: 10%;
    right: 10%;
    animation: lineSlide 4s ease-in-out infinite reverse;
}

@keyframes lineSlide {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(20px); }
}

/* ===================================
   MAIN CONTENT
   =================================== */

.main-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

/* Error Code Display */
.error-code {
    font-family: var(--font-display);
    font-size: clamp(6rem, 15vw, 10rem);
    font-weight: 900;
    color: var(--color-accent);
    opacity: 0.1;
    line-height: 1;
    margin-bottom: -80px;
    position: relative;
    z-index: 0;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.1; }
    50% { opacity: 0.15; }
}

/* Icon Wrapper */
.icon-wrapper {
    margin: var(--spacing-xl) auto;
    animation: fadeIn 1s ease 0.3s both;
}

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

.maintenance-icon,
.error-icon {
    width: 120px;
    height: 120px;
    color: var(--color-accent);
    animation: iconFloat 3s ease-in-out infinite;
}

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

/* Title */
.title {
    margin: var(--spacing-lg) 0;
    animation: fadeIn 1s ease 0.5s both;
}

.title-main {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-xs);
}

.title-sub {
    display: block;
    font-size: clamp(1rem, 2vw, 1.25rem);
    font-weight: 500;
    color: var(--color-text-secondary);
    letter-spacing: 0.5px;
}

/* Description */
.description {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin: var(--spacing-lg) 0;
    animation: fadeIn 1s ease 0.7s both;
}

/* ===================================
   COUNTDOWN TIMER
   =================================== */

.countdown {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
    animation: fadeIn 1s ease 0.9s both;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.countdown-value {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    min-width: 80px;
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.countdown-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

.countdown-separator {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.5;
}

/* ===================================
   PROGRESS BAR
   =================================== */

.progress-wrapper {
    margin: var(--spacing-xl) 0;
    animation: fadeIn 1s ease 1.1s both;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--color-border);
    border-radius: 100px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    border-radius: 100px;
    transition: width 1s ease;
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-text {
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* ===================================
   INFO BOX
   =================================== */

.info-box {
    background: var(--color-bg);
    border-radius: 16px;
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    text-align: left;
    animation: fadeIn 1s ease 0.9s both;
}

.info-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
}

.info-item:not(:last-child) {
    border-bottom: 1px solid var(--color-border);
}

.info-item svg {
    flex-shrink: 0;
    color: var(--color-accent);
    margin-top: 2px;
}

.info-item h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.info-item p {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===================================
   SEARCH BOX
   =================================== */

.search-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: 12px;
    padding: var(--spacing-sm) var(--spacing-md);
    margin: var(--spacing-xl) 0;
    transition: all var(--transition-base);
    animation: fadeIn 1s ease 0.9s both;
}

.search-box:focus-within {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 4px rgba(15, 76, 117, 0.1);
}

.search-box svg {
    color: var(--color-text-secondary);
    flex-shrink: 0;
}

.search-box input {
    flex: 1;
    border: none;
    background: none;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text-primary);
    outline: none;
}

.search-box input::placeholder {
    color: var(--color-text-secondary);
}

.search-btn {
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: 8px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.search-btn:hover {
    background: var(--color-accent-light);
    transform: translateX(2px);
}

/* ===================================
   QUICK LINKS
   =================================== */

.quick-links {
    margin: var(--spacing-xl) 0;
    text-align: left;
    animation: fadeIn 1s ease 1.1s both;
}

.quick-links h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
}

.quick-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: 12px;
    color: var(--color-text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-base);
}

.quick-link:hover {
    border-color: var(--color-accent);
    background: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.quick-link svg {
    color: var(--color-accent);
    flex-shrink: 0;
}

/* ===================================
   ERROR DETAILS
   =================================== */

.error-details {
    display: grid;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
    animation: fadeIn 1s ease 1s both;
}

.detail-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: 12px;
    text-align: left;
}

.detail-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 12px;
    color: var(--color-accent);
    box-shadow: var(--shadow-sm);
}

.detail-content h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-content p {
    font-size: 1rem;
    color: var(--color-primary);
    font-weight: 500;
}

/* ===================================
   SUGGESTIONS
   =================================== */

.suggestions {
    background: var(--color-bg);
    border-radius: 16px;
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    text-align: left;
    animation: fadeIn 1s ease 1.1s both;
}

.suggestions h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.suggestions ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.suggestions li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.suggestions li svg {
    flex-shrink: 0;
    color: var(--color-accent);
    margin-top: 2px;
}

/* ===================================
   BUTTONS
   =================================== */

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    margin: var(--spacing-xl) 0;
    animation: fadeIn 1s ease 1.3s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 12px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn svg {
    position: relative;
    z-index: 1;
}

.btn span,
.btn-primary,
.btn-secondary {
    position: relative;
    z-index: 1;
}

.btn-primary {
    background: var(--color-accent);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--color-accent-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: white;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
}

.btn-secondary:hover {
    background: var(--color-accent);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===================================
   STATUS BADGES
   =================================== */

.status-info {
    margin-top: var(--spacing-xl);
    animation: fadeIn 1s ease 1.5s both;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.status-badge.error {
    background: rgba(231, 76, 60, 0.1);
    border-color: rgba(231, 76, 60, 0.2);
    color: var(--color-error);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-warning);
    animation: statusPulse 2s ease-in-out infinite;
}

.status-badge.error .status-dot {
    background: var(--color-error);
}

@keyframes statusPulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.1);
    }
}

.security-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(15, 76, 117, 0.05);
    border: 2px solid rgba(15, 76, 117, 0.1);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-accent);
    margin-top: var(--spacing-xl);
}

.security-badge svg {
    color: var(--color-accent);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 768px) {
    :root {
        --spacing-2xl: 2rem;
    }
    
    .content-wrapper {
        padding: var(--spacing-lg);
        border-radius: 16px;
    }
    
    .error-code {
        margin-bottom: -50px;
    }
    
    .countdown {
        gap: var(--spacing-sm);
    }
    
    .countdown-value {
        font-size: 2rem;
        min-width: 60px;
        padding: var(--spacing-sm);
    }
    
    .countdown-label {
        font-size: 0.75rem;
    }
    
    .links-grid {
        grid-template-columns: 1fr;
    }
    
    .actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .info-item {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-md);
    }
    
    .title-main {
        font-size: 1.75rem;
    }
    
    .title-sub {
        font-size: 1rem;
    }
    
    .description {
        font-size: 1rem;
    }
    
    .countdown-item {
        min-width: 50px;
    }
    
    .countdown-value {
        font-size: 1.5rem;
        padding: var(--spacing-xs);
    }
}

/* ===================================
   PRINT STYLES
   =================================== */

@media print {
    .grain-overlay,
    .decoration-circle,
    .decoration-line,
    .actions,
    .search-box {
        display: none;
    }
    
    body {
        background: white;
    }
    
    .content-wrapper {
        box-shadow: none;
        border: 1px solid var(--color-border);
    }
}