/* Global Styles */
:root {
    --primary-color: #4a6cf7;
    --secondary-color: #6c757d;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

ul {
    list-style: none;
}

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

.btn {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 12px 28px;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    text-align: center;
}

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

.section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--dark-color);
}

.section-subtitle {
    text-align: center;
    color: var(--secondary-color);
    max-width: 700px;
    margin: 0 auto 3rem;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.logo-image {
    height: 40px;
    width: auto;
    vertical-align: middle;
    transition: transform 0.3s ease;
}

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

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    padding: 0 20px;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--dark-color);
    font-weight: 500;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    bottom: -5px;
    left: 0;
    transition: var(--transition);
}

.login-button {
    background: var(--primary-color);
    color: white;
    padding: 8px 20px;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
}

.login-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

/* User Info in Navigation */
.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-id-display {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--dark-color);
    background: rgba(74, 108, 247, 0.1);
    padding: 4px 12px;
    border-radius: 15px;
    border: 1px solid rgba(74, 108, 247, 0.2);
}

.logout-button {
    background: #dc3545;
    color: white;
    padding: 6px 16px;
    border: none;
    border-radius: 15px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.85rem;
    transition: var(--transition);
}

.logout-button:hover {
    background: #c82333;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(220, 53, 69, 0.3);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f5f7ff 0%, #f9f9f9 100%);
    padding-top: 80px;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    color: var(--secondary-color);
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

.cta-button {
    background: var(--primary-color);
    color: white;
    padding: 15px 40px;
    border-radius: 30px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-block;
    transition: var(--transition);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--box-shadow);
}

/* About Section */
.about {
    background-color: white;
    text-align: center;
}

.stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 4rem;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.5rem;
}

.stat-text {
    color: var(--secondary-color);
    font-size: 1.1rem;
}

/* Services Section */
.services {
    background-color: #f8f9fa;
    text-align: center;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

/* Auth Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    overflow: auto;
}

.modal-content {
    background-color: #fefefe;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    position: relative;
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1rem;
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--dark-color);
    cursor: pointer;
    transition: var(--transition);
}

.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('../assets/A.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff !important;
    text-align: center;
    position: relative;
}

.hero * {
    color: #ffffff !important;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.7);
}

/* Auth Form Styling */
.auth-form {
    margin-top: 1.5rem;
}

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

.auth-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-color);
}

.auth-form input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.auth-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.2);
}

.login-submit-btn {
    width: 100%;
    padding: 12px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.login-submit-btn:hover {
    background: #3a5bd9;
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

.signup-submit-btn {
    width: 100%;
    padding: 12px 20px;
    background: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

.signup-submit-btn:hover {
    background: #218838;
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

/* LianID Requirements */
.lianid-requirements {
    background: rgba(74, 108, 247, 0.05);
    border: 1px solid rgba(74, 108, 247, 0.2);
    border-radius: 5px;
    padding: 12px;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    line-height: 1.4;
}

.lianid-requirements strong {
    color: var(--primary-color);
}

/* Auth Forms */
.auth-footer {
    margin-top: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Error Messages */
.error-message {
    background-color: #ffebee;
    color: #c62828;
    padding: 0.75rem 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    display: none;
}

.error-message.success {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.error-message.warning {
    background-color: #fff8e1;
    color: #f57f17;
}

.error-message.info {
    background-color: #e3f2fd;
    color: #1565c0;
}

/* Loader */
.loader {
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
    display: none;
    margin: 0 auto;
}

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

/* User Menu */
.user-menu {
    display: none;
    align-items: center;
    gap: 1rem;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    text-transform: uppercase;
}

/* Auth Links */
.auth-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn-auth {
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-weight: 500;
    transition: var(--transition);
}

.btn-login {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-login:hover {
    background-color: rgba(74, 108, 247, 0.1);
}

.btn-signup {
    background-color: var(--primary-color);
    color: white;
    border: 1px solid var(--primary-color);
}

.btn-signup:hover {
    background-color: #3a5bd9;
    border-color: #3a5bd9;
}

/* Contact Section */
.contact {
    padding: 5rem 0;
    background-color: #f8f9fa;
}

.contact .section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
}

.contact-details {
    margin-top: 2rem;
}

.contact-details p {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: 'Inter', sans-serif;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.2);
}

.submit-button {
    width: 100%;
    padding: 15px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.submit-button:hover {
    background: #3a5bd9;
}

/* Footer */
.footer {
    background-color: #1a1a1a;
    color: #fff;
    padding: 3rem 0 1rem;
    position: relative;
}

.footer-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    display: inline-block;
    margin-bottom: 1rem;
}

.footer-logo span {
    color: #4a90e2;
}

.footer p {
    color: #aaa;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.social-links a {
    color: #fff;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #4a90e2;
}

/* Footer Auth Styles */
.footer-auth {
    margin: 1.5rem 0;
}

.footer-auth .auth-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
}

.footer-auth .user-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #fff;
}

.footer-auth .user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: #4a90e2;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 600;
}

.footer-auth .user-name {
    font-size: 0.9rem;
    color: #fff;
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid #333;
    margin-top: 1rem;
}

.footer-bottom p {
    margin: 0;
    color: #777;
    font-size: 0.9rem;
}

@media (max-width: 992px) {
    .contact-content {
        grid-template-columns: 1fr;
    }

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

    .contact-details {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: white;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .user-info {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .user-id-display {
        font-size: 0.8rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .stats {
        flex-direction: column;
        gap: 2rem;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .stats {
        flex-direction: column;
        gap: 2rem;
    }
}