/* Root Variables */
:root {
    /* Primary Colors */
    --primary-color: #2c6ecb;
    --primary-dark: #1c4d94;
    --primary-light: #4a8deb;
    
    /* Accent Colors */
    --accent-color: #34d399;
    --accent-dark: #10b981;
    --accent-light: #6ee7b7;
    
    /* Neutral Colors */
    --dark: #111827;
    --medium: #4b5563;
    --light: #f9fafb;
    --white: #ffffff;
    
    /* Gradient Colors */
    --gradient-start: rgba(44, 110, 203, 0.9);
    --gradient-end: rgba(52, 211, 153, 0.8);
    --gradient-overlay: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    
    /* Dark Overlay */
    --dark-overlay: linear-gradient(to bottom, rgba(0,0,0,0.5), rgba(0,0,0,0.7));
    
    /* Typography */
    --heading-font: 'Inter', sans-serif;
    --body-font: 'IBM Plex Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1);
    
    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-border: 1px solid rgba(255, 255, 255, 0.2);
    --glass-blur: 10px;
}

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

body {
    font-family: var(--body-font);
    color: var(--medium);
    line-height: 1.6;
    background-color: var(--light);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--dark);
}

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

a:hover {
    color: var(--primary-dark);
}

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

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

.section {
    padding: var(--spacing-lg) 0;
}

.section-title {
    position: relative;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    text-align: center;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-image: var(--gradient-overlay);
    border-radius: var(--radius-md);
}

/* Button Styles */
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-family: var(--heading-font);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-medium);
    border: none;
    outline: none;
}

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

.button.is-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.button.is-outlined {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.button.is-outlined:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.button.is-large {
    font-size: 1.25rem;
    padding: 1rem 2rem;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--white) !important;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-medium);
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all var(--transition-medium);
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow: var(--shadow-sm);
}

.navbar {
    padding: 1rem 0;
}

.logo {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-menu {
    display: flex;
    align-items: center;
}

.navbar-item {
    padding: 0.5rem 1rem;
    color: var(--medium);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.navbar-item:hover {
    color: var(--primary-color);
}

.navbar-burger {
    display: none;
    cursor: pointer;
}

@media screen and (max-width: 1023px) {
    .navbar-burger {
        display: block;
    }
    
    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        box-shadow: var(--shadow-md);
        padding: 1rem 0;
    }
    
    .navbar-menu.is-active {
        display: block;
    }
    
    .navbar-end {
        flex-direction: column;
    }
    
    .navbar-item {
        display: block;
        padding: 0.75rem 1.5rem;
    }
}

/* Hero Section */
.hero {
    position: relative;
    padding-top: 80px;
    background: url(/image/about-2.jpg);
    background-size: cover;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -1;
}

.hero-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: var(--dark-overlay);
}

.hero-body {
    display: flex;
    align-items: center;
    min-height: calc(100vh - 80px);
    padding: var(--spacing-lg) 0;
}

.hero-title {
    color: var(--white);
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s;
    animation-fill-mode: both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: var(--spacing-md);
    animation: fadeInUp 1s ease 0.4s;
    animation-fill-mode: both;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--white);
    animation: bounce 2s infinite;
}

.hero-scroll-indicator span {
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    opacity: 0.8;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-bottom: 2px solid var(--white);
    border-right: 2px solid var(--white);
    transform: rotate(45deg);
    animation: pulse 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-20px) translateX(-50%);
    }
    60% {
        transform: translateY(-10px) translateX(-50%);
    }
}

@keyframes pulse {
    0% {
        opacity: 0.4;
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0.4;
    }
}

/* About Section */
.about-section {
    background-color: var(--white);
}

.about-image-container {
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-medium);
}

.about-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.about-image-container:hover img {
    transform: scale(1.05);
}

.about-content {
    padding: var(--spacing-sm);
}

.progress-indicators {
    margin-top: var(--spacing-md);
}

.progress-item {
    margin-bottom: var(--spacing-sm);
}

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

.progress {
    height: 8px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.progress::-webkit-progress-bar {
    background-color: #f0f0f0;
}

.progress::-webkit-progress-value {
    background-image: var(--gradient-overlay);
    transition: width 1s ease-in-out;
}

/* Team Section */
.team-section {
    background-color: var(--light);
}

.team-card, .instructor-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.team-card:hover, .instructor-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.image-container {
    width: 100%;
    height: 300px;
    overflow: hidden;
    position: relative;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.team-card:hover .image-container img, .instructor-card:hover .image-container img {
    transform: scale(1.1);
}

.card-content {
    padding: var(--spacing-md);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.social-links {
    margin-top: auto;
    padding-top: var(--spacing-sm);
}

.social-links a {
    font-weight: 500;
    transition: color var(--transition-fast);
}

.social-links a:hover {
    color: var(--accent-color);
}

.expertise-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--spacing-sm);
}

.tag {
    background-color: var(--primary-light);
    color: var(--white);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
}

/* Projects Section */
.projects-section {
    background-color: var(--white);
}

.project-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

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

/* Resources Section */
.resources-section {
    background-color: var(--light);
}

.resource-card {
    height: 100%;
    padding: var(--spacing-md);
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

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

/* Blog Section */
.blog-section {
    background-color: var(--white);
}

.blog-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

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

.blog-card .image-container {
    height: 200px;
}

/* Careers Section */
.careers-section {
    background-color: var(--light);
}

.career-card {
    height: 100%;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

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

/* Contact Section */
.contact-section {
    background-color: var(--white);
}

.contact-info {
    padding: var(--spacing-sm);
}

.info-item {
    margin-bottom: var(--spacing-md);
}

.map-container {
    width: 100%;
    height: 300px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-top: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.map-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.contact-form-container {
    background-color: var(--light);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-form {
    margin-top: var(--spacing-sm);
}

.field {
    margin-bottom: var(--spacing-sm);
}

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

.input, .textarea, .select select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius-md);
    font-family: var(--body-font);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input:focus, .textarea:focus, .select select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 110, 203, 0.2);
}

.checkbox {
    display: flex;
    align-items: center;
}

.checkbox input {
    margin-right: 0.5rem;
}

/* Footer */
.footer {
    background-color: var(--dark);
    color: var(--light);
    padding: var(--spacing-lg) 0;
}

.footer .title {
    color: var(--white);
}

.footer-links {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

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

.footer-links a {
    color: var(--light);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-color);
}

.newsletter {
    margin-top: var(--spacing-md);
}

.newsletter-form {
    margin-top: var(--spacing-sm);
}

.has-addons {
    display: flex;
}

.control.is-expanded {
    flex-grow: 1;
}

.copyright {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Success Page */
.success-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--light);
}

.success-container {
    max-width: 600px;
    padding: var(--spacing-lg);
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* Privacy & Terms Pages */
.privacy-page, .terms-page {
    padding-top: 100px;
    padding-bottom: var(--spacing-lg);
}

.privacy-container, .terms-container {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
}

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

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

/* Responsive Styles */
@media screen and (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .image-container {
        height: 250px;
    }
}

@media screen and (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section {
        padding: var(--spacing-md) 0;
    }
    
    .image-container {
        height: 200px;
    }
}