/* Modern CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-50: #fff7ed;
    --primary-100: #ffedd5;
    --primary-200: #fed7aa;
    --primary-300: #fdba74;
    --primary-400: #fb923c;
    --primary-500: #f97316;
    --primary-600: #ea580c;
    --primary-700: #c2410c;
    --primary-800: #9a3412;
    --primary-900: #7c2d12;
    
    --secondary-50: #f0f9ff;
    --secondary-100: #e0f2fe;
    --secondary-200: #bae6fd;
    --secondary-300: #7dd3fc;
    --secondary-400: #38bdf8;
    --secondary-500: #0ea5e9;
    --secondary-600: #0284c7;
    --secondary-700: #0369a1;
    --secondary-800: #075985;
    --secondary-900: #0c4a6e;
    
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background: linear-gradient(135deg, var(--primary-50) 0%, #ffffff 50%, var(--secondary-50) 100%);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

/* Animated background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.3) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

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

/* Header Styles */
.header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.logo-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: 8px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--gray-600);
    font-weight: 500;
    padding: 10px 16px;
    border-radius: 10px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s;
}

.nav-link:hover::before {
    left: 100%;
}

.nav-link:hover {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Main Content */
.main {
    flex: 1;
    padding: 2rem 0;
}

.hero {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary-100), var(--primary-200));
    color: var(--primary-700);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease-out;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 900;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
    line-height: 1.1;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-600), var(--secondary-600));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.gradient-text::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    border-radius: 2px;
    animation: underline 2s ease-in-out infinite;
}

@keyframes underline {
    0%, 100% { transform: scaleX(1); }
    50% { transform: scaleX(1.1); }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

/* Search Container */
.search-container {
    margin-bottom: 4rem;
    animation: fadeInUp 0.6s ease-out 0.6s both;
}

.search-wrapper {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.search-wrapper:focus-within {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.1);
}

.search-input {
    flex: 1;
    padding: 20px 24px;
    border: none;
    font-size: 1.1rem;
    outline: none;
    background: transparent;
    color: var(--gray-800);
}

.search-input::placeholder {
    color: var(--gray-400);
}

.search-btn {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    border: none;
    padding: 20px 32px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.search-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.search-btn:hover::before {
    left: 100%;
}

.search-btn:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Popular Categories */
.popular-categories {
    margin-bottom: 4rem;
    animation: fadeInUp 0.6s ease-out 0.8s both;
}

.popular-categories h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 2rem;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.category-item {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    padding: 2rem 1.5rem;
    border-radius: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.4s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.category-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.category-item:hover::before {
    opacity: 0.1;
}

.category-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary-300);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.category-item:hover .category-icon {
    transform: scale(1.2) rotate(5deg);
}

.category-item span {
    font-weight: 600;
    color: var(--gray-700);
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.category-item:hover span {
    color: var(--primary-700);
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    animation: fadeInUp 0.6s ease-out 1s both;
}

.feature-item {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    background: rgba(255, 255, 255, 0.8);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

.feature-item:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-item h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--gray-900), var(--gray-800));
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: auto;
    flex-shrink: 0;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 24px;
    width: 90%;
    max-width: 450px;
    position: relative;
    box-shadow: var(--shadow-2xl);
    animation: slideUp 0.3s ease;
    overflow: hidden;
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    color: white;
    padding: 2rem;
    text-align: center;
}

.modal-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.modal-header p {
    opacity: 0.9;
}

.close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    color: var(--gray-400);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
    z-index: 10;
}

.close:hover {
    color: var(--primary-500);
}

form {
    padding: 2rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--gray-700);
}

.input-wrapper {
    position: relative;
}

.input-wrapper i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    z-index: 1;
}

.input-wrapper input {
    width: 100%;
    padding: 16px 16px 16px 48px;
    border: 2px solid var(--gray-200);
    border-radius: 12px;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
    background: var(--gray-50);
}

.input-wrapper input:focus {
    border-color: var(--primary-500);
    background: white;
    box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.1);
}

.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    border: none;
    padding: 16px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.signup-link {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--gray-600);
}

.signup-link a {
    color: var(--primary-600);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.signup-link a:hover {
    color: var(--primary-700);
}

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

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .search-wrapper {
        flex-direction: column;
    }
    
    .search-btn {
        border-radius: 0 0 16px 16px;
    }
    
    .category-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1rem;
    }
    
    .category-item {
        padding: 1.5rem 1rem;
    }
    
    .features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .nav {
        gap: 4px;
    }
    
    .nav-link {
        padding: 8px 12px;
        font-size: 0.9rem;
    }
    
    .nav-link span {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
    }
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-500);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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