:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #1abc9c;
    --accent-color: #f59e0b;
    --light-bg: #f8fafc;
    --dark-bg: #1f2937;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --gray-color: #6b7280;
    --text-color: #1f2937;
    --border-color: #e5e7eb;
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 8px 25px rgba(37, 99, 235, 0.15);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--light-bg);
    color: var(--text-color);
    line-height: 1.6;
}

/* Navbar styles are defined in header.ejs to avoid conflicts */

/* Dropdown Animation Enhancements */
.dropdown-menu {
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dropdown-menu.show {
    opacity: 1;
    transform: translateY(0);
}

/* Smooth dropdown item animations */
.dropdown-item {
    transition: all 0.2s ease;
    transform: translateX(0);
}

.dropdown-item:hover {
    transform: translateX(5px);
}

/* Submenu animations */
.dropdown-submenu .dropdown-menu {
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.25s ease;
}

.dropdown-submenu .dropdown-menu.show {
    opacity: 1;
    transform: translateX(0);
}

/* Navbar collapse animation */
.navbar-collapse {
    transition: all 0.3s ease;
}

.navbar-collapse.collapsing {
    transition: height 0.3s ease;
}

/* Enhanced hover effects */
.nav-link {
    transition: all 0.3s ease !important;
}

.dropdown-toggle::after {
    transition: transform 0.3s ease;
}

.dropdown.show .dropdown-toggle::after {
    transform: rotate(180deg);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--secondary-color) 100%);
    color: white;
    padding: 6rem 1rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 70vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 30%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.05) 50%, transparent 70%);
    animation: shimmer 3s ease-in-out infinite;
}

.hero .container {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.hero h1 {
    font-weight: 700;
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.9) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.hero p.lead {
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    opacity: 0.95;
    font-weight: 400;
}

.coming-soon {
    font-size: 1.1rem;
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--warning-color) 0%, #fbbf24 100%);
    color: var(--text-color);
    border: none;
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.3);
    transition: var(--transition);
    position: relative;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.coming-soon:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(245, 158, 11, 0.4);
    color: var(--text-color);
    text-decoration: none;
}

.coming-soon span {
    font-weight: 400;
    opacity: 0.9;
}

/* Section Titles */
.section-title {
    position: relative;
    margin-bottom: 3rem;
    font-weight: 700;
    text-align: center;
    font-size: clamp(2rem, 4vw, 2.5rem);
    color: var(--text-color);
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    margin: 20px auto;
    border-radius: 2px;
}

/* Tools Section */
.tools-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
}

.tools-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(245, 158, 11, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

/* Category Headers */
.category-section {
    margin-bottom: 4rem;
}

.h2-mainheader {
    font-size: clamp(1.4rem, 3vw, 1.8rem);
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
    padding-bottom: 0.5rem;
}

.h2-mainheader::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

/* Subcategory Headers */
.subcategory-section {
    margin-bottom: 2.5rem;
}

.h4-subheader {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
    font-weight: 600;
    background: linear-gradient(135deg, #ffffff, #f8fafc);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow-light);
    position: relative;
    overflow: hidden;
}

.h4-subheader::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

/* Cards */
.card {
    transition: var(--transition);
    border: none;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    height: 100%;
    background: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: var(--transition);
    transform-origin: left;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.card:hover::before {
    transform: scaleX(1);
}

.card-body {
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.card-title {
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.25rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-title i {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.card:hover .card-title i {
    color: var(--secondary-color);
    transform: scale(1.1);
}

.card-text {
    color: var(--gray-color);
    font-size: 0.95rem;
    line-height: 1.6;
}

.cursor-pointer {
    cursor: pointer !important;
}

/* Visitor Section */
.visitor-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
}

.visitor-card {
    border: none;
    border-radius: 20px;
    box-shadow: var(--shadow-medium);
    transition: var(--transition);
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.visitor-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 2px;
    border-radius: inherit;
    z-index: -1;
}

.visitor-card::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    bottom: 2px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: calc(20px - 2px);
    z-index: -1;
}

.visitor-card:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
}

#visitor-count {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(1deg);
    }
}

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

/* Scroll animations */
.category-section {
    animation: fadeInUp 0.6s ease-out;
}

.card {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.2s; }
.card:nth-child(3) { animation-delay: 0.3s; }
.card:nth-child(4) { animation-delay: 0.4s; }
.card:nth-child(5) { animation-delay: 0.5s; }
.card:nth-child(6) { animation-delay: 0.6s; }

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        padding: 4rem 1rem;
        min-height: 60vh;
    }

    .tools-section {
        padding: 4rem 0;
    }

    .card-body {
        padding: 1.5rem;
    }

    .h2-mainheader {
        margin-bottom: 1.5rem;
    }

    .h4-subheader {
        padding: 0.75rem 1rem;
        margin-bottom: 1rem;
    }

    .visitor-section {
        padding: 3rem 0;
    }

    .coming-soon {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }

    .coming-soon span {
        display: block;
        margin-top: 0.25rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .card-title {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .h2-mainheader {
        text-align: center;
    }

    .section-title {
        margin-bottom: 2rem;
    }
}

/* Enhanced focus states for accessibility */
.card:focus,
.coming-soon:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading states */
.card.loading {
    opacity: 0.7;
    pointer-events: none;
}

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

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