/* ========================================
   EGYPT TOURS ONLINE - MODERN PHARAONIC DESIGN
   Main Stylesheet
   ======================================== */

/* ========================================
   CSS VARIABLES - COLOR PALETTE
   ======================================== */
:root {
    /* Primary Colors - Egyptian Gold & Nile Blue */
    --primary-gold: #D4AF37;
    --primary-gold-dark: #B8941F;
    --primary-gold-light: #E5C965;
    
    --primary-blue: #1E3A5F;
    --primary-blue-dark: #0F1F3A;
    --primary-blue-light: #2E5A8F;
    
    /* Secondary Colors - Sand & Turquoise */
    --sand-beige: #E8D7C3;
    --sand-light: #F5EFE7;
    --sand-dark: #C9B899;
    
    --turquoise: #40E0D0;
    --turquoise-dark: #20B2AA;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --off-white: #FAFAFA;
    --gray-light: #F5F5F5;
    --gray: #666666;
    --gray-dark: #333333;
    --black: #000000;
    
    /* Accent Colors */
    --red-accent: #C41E3A;
    --green-accent: #2E7D32;
    
    /* Gradients */
    --gradient-gold: linear-gradient(135deg, var(--primary-gold) 0%, var(--primary-gold-light) 100%);
    --gradient-blue: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    --gradient-sunset: linear-gradient(135deg, #FF6B35 0%, #F7931E 50%, #FDC830 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.2);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.25);
    
    /* Transitions */
    --transition-fast: 0.2s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Container Widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-xxl: 1536px;
}

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

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

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.01em;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

h5 {
    font-size: 1.125rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--gray);
}

a {
    color: var(--primary-gold);
    text-decoration: none;
    transition: all var(--transition-fast);
}

a:hover {
    color: var(--primary-gold-dark);
}

strong, b {
    font-weight: 600;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.text-gold {
    color: var(--primary-gold);
}

.text-blue {
    color: var(--primary-blue);
}

.text-white {
    color: var(--white);
}

.bg-gold {
    background-color: var(--primary-gold);
}

.bg-blue {
    background-color: var(--primary-blue);
}

.bg-sand {
    background-color: var(--sand-light);
}

.bg-white {
    background-color: var(--white);
}

/* Spacing Utilities */
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.pt-1 { padding-top: var(--spacing-xs); }
.pt-2 { padding-top: var(--spacing-sm); }
.pt-3 { padding-top: var(--spacing-md); }
.pt-4 { padding-top: var(--spacing-lg); }
.pt-5 { padding-top: var(--spacing-xl); }

.pb-1 { padding-bottom: var(--spacing-xs); }
.pb-2 { padding-bottom: var(--spacing-sm); }
.pb-3 { padding-bottom: var(--spacing-md); }
.pb-4 { padding-bottom: var(--spacing-lg); }
.pb-5 { padding-bottom: var(--spacing-xl); }

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    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-primary {
    background: var(--gradient-gold);
    color: var(--primary-blue);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--gradient-blue);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

.btn-outline {
    background: transparent;
    color: var(--primary-gold);
    border: 2px solid var(--primary-gold);
}

.btn-outline:hover {
    background: var(--primary-gold);
    color: var(--white);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn-small {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
}

/* ========================================
   CARDS
   ======================================== */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.card-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.card-body {
    padding: var(--spacing-md);
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.card-text {
    color: var(--gray);
    margin-bottom: var(--spacing-md);
}

/* ========================================
   SECTIONS
   ======================================== */
section {
    padding: var(--spacing-xxl) 0;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-gold);
    border-radius: var(--radius-full);
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

/* ========================================
   PHARAONIC DECORATIVE ELEMENTS
   ======================================== */
.pharaonic-border {
    border: 3px solid var(--primary-gold);
    border-image: repeating-linear-gradient(
        45deg,
        var(--primary-gold),
        var(--primary-gold) 10px,
        var(--primary-blue) 10px,
        var(--primary-blue) 20px
    ) 1;
}

.hieroglyph-pattern {
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0L35 15L30 30L25 15Z M0 30L15 35L30 30L15 25Z M30 30L35 45L30 60L25 45Z M30 30L45 35L60 30L45 25Z' fill='%23D4AF37' fill-opacity='0.05'/%3E%3C/svg%3E");
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
    :root {
        --spacing-xxl: 4rem;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
        --spacing-xxl: 3rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9375rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .btn {
        width: 100%;
        padding: 1rem;
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

.animate-slide-left {
    animation: slideInLeft 0.8s ease-out;
}

.animate-slide-right {
    animation: slideInRight 0.8s ease-out;
}

.animate-scale {
    animation: scaleIn 0.5s ease-out;
}

/* ========================================
   LOADING SPINNER
   ======================================== */
.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--sand-light);
    border-top-color: var(--primary-gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

:focus-visible {
    outline: 3px solid var(--primary-gold);
    outline-offset: 2px;
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
    *, *::before, *::after {
        background: transparent !important;
        color: #000 !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    a, a:visited {
        text-decoration: underline;
    }
    
    img {
        page-break-inside: avoid;
    }
    
    h2, h3, p {
        orphans: 3;
        widows: 3;
    }
    
    h2, h3 {
        page-break-after: avoid;
    }
}