:root {
   
    --primary: #0A1AFF;
    --secondary: #00D4FF;
    --dark: #0B0F1A;
    --light-bg: #F8FAFF;
    --text-dark: #1A1A1A;
    --text-light: #FFFFFF;
    --gradient-primary: linear-gradient(135deg, #0A1AFF 0%, #00D4FF 100%);
    --gradient-dark: linear-gradient(135deg, #0B0F1A 0%, #1a2040 100%);
    
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 50px;
    
    /* Shadows */
    --shadow-sm: 0 2px 10px rgba(10, 26, 255, 0.1);
    --shadow-md: 0 5px 25px rgba(10, 26, 255, 0.15);
    --shadow-lg: 0 10px 40px rgba(10, 26, 255, 0.2);
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--light-bg);
    overflow-x: hidden;
    padding-top: 80px; /* Fixed navbar spacing */
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: #555;
}

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

a:hover {
    color: var(--secondary);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

/* Section Styles */
.section {
    padding: var(--spacing-xl) 0;
}

.section-dark {
    background: var(--gradient-dark);
    color: var(--text-light);
}

.section-dark h2,
.section-dark h3,
.section-dark p {
    color: var(--text-light);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.section-header p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: var(--spacing-sm) auto 0;
}

/* Page Header - Fixed spacing for navbar */
.page-header {
    padding-top: 120px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-normal);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    color: var(--text-light);
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: var(--text-light);
    transform: translateY(-3px);
}

.btn-light {
    background: var(--text-light);
    color: var(--primary);
}

.btn-light:hover {
    background: var(--light-bg);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-sm {
    padding: 10px 24px;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 18px 40px;
    font-size: 1.1rem;
}

/* Cards */
.card {
    background: var(--text-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-card);
    transition: var(--transition-normal);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Flex Utilities */
.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-dark { color: var(--text-dark); }
.text-light { color: var(--text-light); }
.text-muted { color: #777; }

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Background Utilities */
.bg-primary { background-color: var(--primary); }
.bg-dark { background-color: var(--dark); }
.bg-light { background-color: var(--light-bg); }
.bg-white { background-color: var(--text-light); }
.bg-gradient { background: var(--gradient-primary); }

/* 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); }

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

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: var(--radius-sm);
    background: var(--text-light);
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(10, 26, 255, 0.1);
}

.form-control::placeholder {
    color: #aaa;
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23555' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
}

/* Alert Messages */
.alert {
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Overlay */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(11, 15, 26, 0.7);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 998;
}

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

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: var(--transition-slow);
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--secondary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Floating Action Buttons */
.whatsapp-btn,
.back-to-top {
    position: fixed;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-normal);
    z-index: 997;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

/* WhatsApp Button */
.whatsapp-btn {
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: var(--text-light);
    font-size: 1.8rem;
    box-shadow: 0 5px 20px rgba(37, 211, 102, 0.4);
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    color: var(--text-light);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

/* Back to Top Button */
.back-to-top {
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--text-light);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    font-size: 1.2rem;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* Selection */
::selection {
    background: var(--primary);
    color: var(--text-light);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

/* Fixed Header Spacing - Complete Fix */
.page-header {
    padding-top: 120px;
}

body {
    padding-top: 80px;
}

/* Ensure navbar is always visible */
.header {
    height: 80px;
}

.navbar {
    height: 80px;
}

/* Prevent scroll when mobile menu is open */
body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }

    .page-header {
        padding-top: 100px;
    }

    .header {
        height: 70px;
    }

    .navbar {
        height: 70px;
    }

    /* Mobile floating buttons */
    .whatsapp-btn {
        bottom: 20px;
        right: 20px;
        width: 55px;
        height: 55px;
        font-size: 1.5rem;
    }

    .back-to-top {
        bottom: 85px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    /* Extra small screens */
    .whatsapp-btn {
        bottom: 15px;
        right: 15px;
        width: 50px;
        height: 50px;
        font-size: 1.3rem;
    }

    .back-to-top {
        bottom: 75px;
        right: 15px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}