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

/* Root Variables */
:root {
    /* Light Mode Colors */
    --primary-color: #0052CC;
    --secondary-color: #003366;
    --accent-color: #0066FF;
    --text-color: #333333;
    --bg-color: #FFFFFF;
    --bg-secondary: #F5F7FA;
    --border-color: #E0E6ED;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 5px 20px rgba(0, 0, 0, 0.15);
    --card-bg: #FFFFFF;
    --input-bg: #FFFFFF;
    --header-bg: #FFFFFF;
    --footer-bg: #003366;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --primary-color: #4A90E2;
    --secondary-color: #2C5282;
    --accent-color: #63B3ED;
    --text-color: #E0E6ED;
    --bg-color: #1A202C;
    --bg-secondary: #2D3748;
    --border-color: #4A5568;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 5px 20px rgba(0, 0, 0, 0.7);
    --card-bg: #2D3748;
    --input-bg: #2D3748;
    --header-bg: #2D3748;
    --footer-bg: #1A202C;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: var(--header-bg);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color);
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    padding: 0.5rem 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 6rem 0;
    text-align: center;
    color: white;
    animation: fadeIn 1s ease;
    position: relative;
    overflow: hidden;
    min-height: 500px;
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    z-index: 10;
    position: relative;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    line-height: 1.2;
    animation: slideInDown 0.8s ease;
}

.hero-slogan {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    opacity: 0.95;
    font-weight: 500;
    animation: slideInUp 0.8s ease;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 5px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

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

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

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

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

/* Cards */
.card {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

/* Sections */
.section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.section-subtitle {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 1.1rem;
    opacity: 0.8;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Services */
.service-card {
    text-align: center;
    padding: 2.5rem;
}

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.service-title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

/* Pricing Cards */
.pricing-card {
    position: relative;
    padding: 2.5rem;
    text-align: center;
}

.pricing-card.popular {
    border: 2px solid var(--primary-color);
}

.popular-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background-color: var(--primary-color);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.price {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin: 1rem 0;
}

.price-duration {
    font-size: 1rem;
    opacity: 0.7;
}

.features-list {
    list-style: none;
    margin: 2rem 0;
}

.features-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.features-list li:last-child {
    border-bottom: none;
}

/* Portfolio */
.portfolio-item {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

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

.portfolio-image-wrapper {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
}

.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.portfolio-item:hover .portfolio-img {
    transform: scale(1.1);
}

.portfolio-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex: 1;
}

.portfolio-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    align-self: flex-start;
}

.portfolio-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
    line-height: 1.4;
}

.portfolio-description {
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.8;
    line-height: 1.6;
    margin: 0;
    flex: 1;
}

.portfolio-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.portfolio-client {
    font-size: 0.85rem;
    color: var(--text-color);
    opacity: 0.7;
}

.portfolio-client i {
    margin-right: 0.25rem;
}

.portfolio-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.portfolio-link:hover {
    color: var(--secondary-color);
}

.portfolio-link i {
    margin-left: 0.25rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-state h3 {
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.empty-state p {
    color: var(--text-color);
    opacity: 0.7;
}

/* Testimonials */
.testimonial-card {
    padding: 2rem;
    background-color: var(--card-bg);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1rem;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h4 {
    color: var(--primary-color);
}

.author-info span {
    font-size: 0.9rem;
    opacity: 0.7;
}

.rating {
    color: #FFD700;
    margin-top: 0.5rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--input-bg);
    color: var(--text-color);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
footer {
    background-color: var(--footer-bg);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: white;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.social-icons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: all 0.3s ease;
}

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

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

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

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

.fade-in {
    animation: fadeIn 0.8s ease;
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

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

/* Alert Messages */
.alert {
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
    animation: slideInDown 0.5s ease;
}

.alert-success {
    background-color: #D4EDDA;
    color: #155724;
    border: 1px solid #C3E6CB;
}

.alert-error {
    background-color: #F8D7DA;
    color: #721C24;
    border: 1px solid #F5C6CB;
}

.alert-warning {
    background-color: #FFF3CD;
    color: #856404;
    border: 1px solid #FFEEBA;
}

.alert-info {
    background-color: #D1ECF1;
    color: #0C5460;
    border: 1px solid #BEE5EB;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--header-bg);
        width: 100%;
        padding: 2rem;
        box-shadow: var(--shadow);
        transition: 0.3s;
        gap: 1rem;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero {
        padding: 4rem 0;
        min-height: 400px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-slogan {
        font-size: 1.3rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.hidden {
    display: none;
}

.w-full {
    width: 100%;
}

.flex {
    display: flex;
}

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

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