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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #374151;
    background-color: #ffffff;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e5e7eb;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #1e3a8a, #3b82f6);
    border-radius: 10px;
    padding: 4px;
    box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
    transition: all 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(30, 58, 138, 0.4);
}

.logo svg {
    width: 28px;
    height: 28px;
}

.logo svg path {
    stroke: white;
}

.logo svg circle {
    fill: white;
}

.nav-brand h2 {
    color: #1e3a8a;
    font-weight: 700;
    font-size: 24px;
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: #6b7280;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #1e3a8a;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 0;
    right: 0;
    height: 2px;
    background: #1e3a8a;
}

.admin-link {
    background: #1e3a8a;
    color: white !important;
    padding: 8px 16px;
    border-radius: 6px;
    transition: background-color 0.3s ease;
}

.admin-link:hover {
    background: #1e40af;
    color: white !important;
}

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

.hamburger span {
    width: 24px;
    height: 3px;
    background: #1e3a8a;
    margin: 3px 0;
    transition: 0.3s;
}

/* Main Content */
.main-content {
    margin-top: 64px;
}

.section {
    display: block;
    min-height: auto;
    padding: 80px 0;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    color: #1e3a8a;
    text-align: center;
    margin-bottom: 64px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 120px 0 80px;
    text-align: center;
}

.hero-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 32px;
}

.hero-logo svg {
    background: linear-gradient(135deg, #1e3a8a, #3b82f6);
    border-radius: 20px;
    padding: 16px;
    box-shadow: 0 12px 40px rgba(30, 58, 138, 0.3);
    animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.hero-title {
    font-size: 64px;
    font-weight: 700;
    color: #1e3a8a;
    margin-bottom: 16px;
}

.hero-tagline {
    font-size: 24px;
    font-weight: 500;
    color: #6b7280;
    margin-bottom: 32px;
    font-style: italic;
}

.hero-description {
    font-size: 18px;
    color: #6b7280;
    max-width: 800px;
    margin: 0 auto 48px;
    line-height: 1.7;
}

.cta-button {
    background: #1e3a8a;
    color: white;
    border: none;
    padding: 16px 32px;
    font-size: 18px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
}

.cta-button:hover {
    background: #1e40af;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(30, 58, 138, 0.3);
}

/* Features */
.features {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: white;
    border-radius: 20px;
    padding: 48px 40px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid #f1f5f9;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
}

.feature-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.feature-card-icon {
    width: 100px;
    height: 100px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 32px;
    color: white;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

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

.feature-card h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.feature-card p {
    color: #6b7280;
    line-height: 1.7;
    font-size: 16px;
    margin-bottom: 28px;
}

.feature-badge {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    margin-top: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.badge-text {
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Free Card Specific Styling */
.free-card {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}

.free-card::before {
    background: linear-gradient(90deg, #16a34a, #22c55e);
}

.free-card .feature-card-icon {
    background: linear-gradient(135deg, #16a34a, #22c55e);
    box-shadow: 0 12px 32px rgba(34, 197, 94, 0.4);
}

.free-card h3 {
    color: #16a34a;
}

.free-card .feature-badge {
    background: rgba(34, 197, 94, 0.15);
    color: #16a34a;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

/* Mentorship Card Specific Styling */
.mentorship-card {
    background: linear-gradient(135deg, #fef7ff 0%, #f3e8ff 100%);
}

.mentorship-card::before {
    background: linear-gradient(90deg, #7c3aed, #a855f7);
}

.mentorship-card .feature-card-icon {
    background: linear-gradient(135deg, #7c3aed, #a855f7);
    box-shadow: 0 12px 32px rgba(168, 85, 247, 0.4);
}

.mentorship-card h3 {
    color: #7c3aed;
}

.mentorship-card .feature-badge {
    background: rgba(168, 85, 247, 0.15);
    color: #7c3aed;
    border: 1px solid rgba(168, 85, 247, 0.3);
}

/* Research Card Specific Styling */
.research-card {
    background: linear-gradient(135deg, #fff7ed 0%, #fed7aa 100%);
}

.research-card::before {
    background: linear-gradient(90deg, #ea580c, #f97316);
}

.research-card .feature-card-icon {
    background: linear-gradient(135deg, #ea580c, #f97316);
    box-shadow: 0 12px 32px rgba(249, 115, 22, 0.4);
}

.research-card h3 {
    color: #ea580c;
}

.research-card .feature-badge {
    background: rgba(249, 115, 22, 0.15);
    color: #ea580c;
    border: 1px solid rgba(249, 115, 22, 0.3);
}

/* Responsive Design for Feature Cards */
@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .feature-card {
        padding: 40px 32px;
    }
    
    .feature-card-icon {
        width: 80px;
        height: 80px;
        border-radius: 20px;
        margin-bottom: 24px;
    }
    
    .feature-card h3 {
        font-size: 24px;
    }
    
    .feature-card p {
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .feature-card {
        padding: 32px 24px;
    }
    
    .feature-card-icon {
        width: 64px;
        height: 64px;
        border-radius: 16px;
    }
    
    .feature-card h3 {
        font-size: 22px;
    }
}

/* About Section */
.about-cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto auto;
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto;
}

.about-cards-grid .mission-card {
    grid-column: 1 / 2;
    grid-row: 1;
}

.about-cards-grid .vision-card {
    grid-column: 2 / 3;
    grid-row: 1;
}

.about-cards-grid .values-card {
    grid-column: 1 / -1;
    grid-row: 2;
}

.about-cards-grid .success-card {
    grid-column: 1 / -1;
    grid-row: 3;
}

.about-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid #f1f5f9;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1e3a8a, #3b82f6);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.about-card-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #1e3a8a, #3b82f6);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: white;
    box-shadow: 0 8px 24px rgba(30, 58, 138, 0.3);
}

.about-card h3 {
    font-size: 24px;
    font-weight: 700;
    color: #1e3a8a;
    margin-bottom: 16px;
    line-height: 1.3;
}

.about-card p {
    color: #6b7280;
    line-height: 1.7;
    font-size: 16px;
    margin-bottom: 24px;
}

/* Mission Card Specific Styling */
.mission-card {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.mission-card::before {
    background: linear-gradient(90deg, #059669, #10b981);
}

.mission-card .about-card-icon {
    background: linear-gradient(135deg, #059669, #10b981);
}

/* Vision Card Specific Styling */
.vision-card {
    background: linear-gradient(135deg, #fef7ff 0%, #f3e8ff 100%);
}

.vision-card::before {
    background: linear-gradient(90deg, #7c3aed, #a855f7);
}

.vision-card .about-card-icon {
    background: linear-gradient(135deg, #7c3aed, #a855f7);
}

/* Values Card Specific Styling */
.values-card {
    background: linear-gradient(135deg, #fff7ed 0%, #fed7aa 100%);
    grid-column: span 2;
}

.values-card::before {
    background: linear-gradient(90deg, #ea580c, #f97316);
}

.values-card .about-card-icon {
    background: linear-gradient(135deg, #ea580c, #f97316);
}

.values-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.value-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid rgba(234, 88, 12, 0.1);
}

.value-item:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.value-icon {
    font-size: 24px;
    min-width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(234, 88, 12, 0.1);
    border-radius: 8px;
}

.value-item strong {
    color: #ea580c;
    font-weight: 600;
    font-size: 16px;
    margin-bottom: 4px;
    display: block;
}

.value-item p {
    color: #6b7280;
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
}

/* Success Card Specific Styling */
.success-card {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}

.success-card::before {
    background: linear-gradient(90deg, #16a34a, #22c55e);
}

.success-card .about-card-icon {
    background: linear-gradient(135deg, #16a34a, #22c55e);
}

.success-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(34, 197, 94, 0.1);
    color: #16a34a;
    padding: 12px 20px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    border: 1px solid rgba(34, 197, 94, 0.2);
    margin-top: 16px;
}

.badge-icon {
    font-size: 16px;
}

/* Responsive Design for About Cards */
@media (max-width: 1024px) {
    .values-card {
        grid-column: span 1;
    }
    
    .values-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .about-cards-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .about-card {
        padding: 32px 24px;
    }
    
    .about-card-icon {
        width: 64px;
        height: 64px;
        border-radius: 16px;
    }
    
    .about-card h3 {
        font-size: 20px;
    }
    
    .values-list {
        gap: 16px;
    }
    
    .value-item {
        padding: 16px;
    }
}

/* Join Section */
.join-content {
    max-width: 1000px;
    margin: 0 auto;
}

.join-process {
    margin-bottom: 64px;
}

.join-process h3 {
    font-size: 32px;
    font-weight: 600;
    color: #1e3a8a;
    text-align: center;
    margin-bottom: 48px;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 32px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.step-number {
    background: #1e3a8a;
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 20px;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 8px;
}

.step-content p {
    color: #6b7280;
    line-height: 1.6;
}

.join-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-bottom: 48px;
}

.detail-card {
    background: #f8fafc;
    padding: 32px;
    border-radius: 12px;
    border-left: 4px solid #1e3a8a;
}

.detail-card h4 {
    font-size: 20px;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 16px;
}

.detail-card ul {
    list-style: none;
    padding: 0;
}

.detail-card li {
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.detail-card li::before {
    content: '✓';
    color: #1e3a8a;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Training Section */
.training-content {
    max-width: 1000px;
    margin: 0 auto;
}

.training-overview {
    text-align: center;
    margin-bottom: 64px;
}

.training-overview h3 {
    font-size: 32px;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 16px;
}

.training-overview p {
    font-size: 18px;
    color: #6b7280;
    line-height: 1.7;
    max-width: 800px;
    margin: 0 auto;
}

.curriculum h3 {
    font-size: 28px;
    font-weight: 600;
    color: #1e3a8a;
    text-align: center;
    margin-bottom: 32px;
}

.curriculum-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-bottom: 64px;
}

.curriculum-item {
    background: white;
    padding: 32px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.curriculum-item:hover {
    transform: translateY(-4px);
}

.curriculum-item h4 {
    font-size: 20px;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 16px;
}

.curriculum-item ul {
    list-style: none;
    padding: 0;
}

.curriculum-item li {
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.curriculum-item li::before {
    content: '•';
    color: #1e3a8a;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.training-format h3 {
    font-size: 28px;
    font-weight: 600;
    color: #1e3a8a;
    text-align: center;
    margin-bottom: 32px;
}

.format-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.format-card {
    background: #f8fafc;
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    border-top: 4px solid #1e3a8a;
}

.format-card h4 {
    font-size: 20px;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 16px;
}

.format-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* Research Areas */
.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.research-card {
    background: white;
    padding: 32px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.research-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.research-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 16px;
}

.research-card p {
    color: #6b7280;
    line-height: 1.7;
}

/* Projects Section */
.projects-header {
    text-align: center;
    margin-bottom: 48px;
}

.projects-header p {
    font-size: 18px;
    color: #6b7280;
    margin-bottom: 24px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 32px;
}

.project-card {
    background: white;
    border-radius: 12px;
    padding: 32px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
    position: relative;
}

.project-card:hover {
    transform: translateY(-4px);
}

.project-status {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.project-status.ongoing {
    background: #fef3c7;
    color: #92400e;
}

.project-status.completed {
    background: #d1fae5;
    color: #065f46;
}

.project-status.planning {
    background: #e0e7ff;
    color: #3730a3;
}

.project-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 16px;
    margin-right: 80px;
}

.project-card .abstract {
    color: #6b7280;
    line-height: 1.7;
    margin-bottom: 24px;
}

.project-team {
    border-top: 1px solid #e5e7eb;
    padding-top: 16px;
    color: #6b7280;
    font-size: 14px;
}

.project-team strong {
    color: #1e3a8a;
}

.project-publication {
    border-top: 1px solid #e5e7eb;
    padding-top: 16px;
    margin-top: 16px;
    color: #6b7280;
    font-size: 14px;
}

.project-publication strong {
    color: #1e3a8a;
}

.doi-link {
    color: #1e3a8a;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.doi-link:hover {
    color: #1e40af;
    text-decoration: underline;
}

.project-actions {
    margin-top: 16px;
    display: none;
    gap: 8px;
}

.project-actions button {
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
}

.edit-btn {
    background: #3b82f6;
    color: white;
}

.delete-btn {
    background: #ef4444;
    color: white;
}

/* Team Section */
.team-header {
    text-align: center;
    margin-bottom: 48px;
}

.team-header p {
    font-size: 18px;
    color: #6b7280;
    margin-bottom: 24px;
}

.team-grid {
    display: flex;
    flex-direction: column;
    gap: 64px;
}

.team-section {
    width: 100%;
}

.team-section-title {
    font-size: 32px;
    font-weight: 600;
    color: #1e3a8a;
    text-align: center;
    margin-bottom: 32px;
    position: relative;
}

.team-section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: #1e3a8a;
    border-radius: 2px;
}

.team-section-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.team-card {
    background: white;
    border-radius: 12px;
    padding: 32px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
    position: relative;
}

.team-card:hover {
    transform: translateY(-4px);
}

.team-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 24px;
    object-fit: cover;
    border: 4px solid #e5e7eb;
}

.team-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 8px;
}

.team-role {
    color: #6b7280;
    font-weight: 500;
    margin-bottom: 16px;
}

.team-links {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.team-links a {
    color: #6b7280;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.3s ease;
}

.team-links a:hover {
    color: #1e3a8a;
}

.team-actions {
    margin-top: 16px;
    display: none;
    gap: 8px;
    justify-content: center;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 64px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h3 {
    font-size: 28px;
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 16px;
}

.contact-info p {
    color: #6b7280;
    line-height: 1.7;
    margin-bottom: 32px;
}

.contact-details p {
    margin-bottom: 8px;
}

.contact-form {
    background: #f8fafc;
    padding: 40px;
    border-radius: 12px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 16px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #1e3a8a;
}

.submit-button {
    background: #1e3a8a;
    color: white;
    border: none;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    width: 100%;
}

.submit-button:hover {
    background: #1e40af;
}

/* Admin Section */
.admin-login,
.admin-panel {
    max-width: 600px;
    margin: 0 auto;
}

.admin-form {
    background: #f8fafc;
    padding: 40px;
    border-radius: 12px;
}

.admin-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 32px;
}

.tab-button {
    padding: 12px 24px;
    border: none;
    background: #f3f4f6;
    color: #6b7280;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tab-button.active {
    background: #1e3a8a;
    color: white;
}

.admin-button {
    background: #1e3a8a;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.admin-button:hover {
    background: #1e40af;
}

.logout-button {
    background: #ef4444;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    margin-top: 32px;
}

.logout-button:hover {
    background: #dc2626;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal {
    background: white;
    border-radius: 12px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.close-modal {
    position: absolute;
    top: 16px;
    right: 24px;
    font-size: 28px;
    cursor: pointer;
    color: #6b7280;
}

.close-modal:hover {
    color: #374151;
}

#modal-content {
    padding: 40px;
}

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-form input,
.modal-form select,
.modal-form textarea {
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 14px;
}

.modal-form button {
    background: #1e3a8a;
    color: white;
    border: none;
    padding: 12px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
}

.modal-form button:hover {
    background: #1e40af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 64px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 32px 0;
        gap: 16px;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-tagline {
        font-size: 20px;
    }

    .section-title {
        font-size: 32px;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .features-grid,
    .research-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

    .curriculum-grid {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 16px;
    }

    .nav-container {
        padding: 0 16px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 80px 0 40px;
    }

    .hero-title {
        font-size: 32px;
    }

    .section {
        padding: 40px 0;
    }

    .section-title {
        font-size: 28px;
        margin-bottom: 32px;
    }

    .modal {
        width: 95%;
    }

    #modal-content {
        padding: 24px;
    }
}

/* Admin styling additions */
.admin-section {
    background: #f8fafc;
    padding: 24px;
    border-radius: 8px;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid #e5e7eb;
}

.admin-header h3 {
    color: #1e3a8a;
    font-size: 20px;
    font-weight: 600;
}

.admin-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.admin-item {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.admin-item-info h4 {
    color: #1e3a8a;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.admin-item-info p {
    color: #6b7280;
    font-size: 14px;
    margin-bottom: 4px;
}

.admin-abstract {
    margin-top: 8px;
    font-style: italic;
}

.admin-links {
    margin-top: 8px;
    display: flex;
    gap: 12px;
}

.admin-links a {
    color: #1e3a8a;
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
}

.admin-links a:hover {
    text-decoration: underline;
}

.admin-item-actions {
    display: flex;
    gap: 8px;
}

.status-ongoing {
    color: #92400e;
    font-weight: 600;
}

.status-completed {
    color: #065f46;
    font-weight: 600;
}

.status-planning {
    color: #3730a3;
    font-weight: 600;
}

.no-data {
    text-align: center;
    color: #6b7280;
    font-style: italic;
    padding: 40px;
}

/* Drag and Drop Styles */
.drag-handle {
    cursor: grab;
    color: #9ca3af;
    padding: 8px;
    margin-right: 12px;
    border-radius: 4px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
}

.drag-handle:hover {
    background: #f3f4f6;
    color: #6b7280;
}

.drag-handle:active {
    cursor: grabbing;
}

.admin-item {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    transition: all 0.2s ease;
    border: 2px solid transparent;
}

.admin-item:hover {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.admin-item.dragging {
    opacity: 0.5;
    transform: rotate(2deg);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border: 2px solid #1e3a8a;
    background: #f8fafc;
}

.admin-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 100px;
}

.admin-item-info {
    flex: 1;
}

.admin-item-actions {
    display: flex;
    gap: 8px;
    margin-left: auto;
}

/* Drag over states */
.admin-list.drag-over {
    background: #f0f9ff;
    border: 2px dashed #1e3a8a;
    border-radius: 8px;
    padding: 8px;
}

/* Visual feedback for drop zones */
.drop-indicator {
    height: 4px;
    background: #1e3a8a;
    border-radius: 2px;
    margin: 8px 0;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.drop-indicator.active {
    opacity: 1;
}

/* Notification styles */
.notification {
    font-family: 'Inter', sans-serif;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #10b981;
}

@media (max-width: 768px) {
    .admin-header {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }
    
    .admin-item {
        flex-direction: column;
        gap: 16px;
    }
    
    .admin-item-actions {
        justify-content: flex-start;
    }
    
    .drag-handle {
        margin-right: 8px;
        min-width: 28px;
        padding: 6px;
    }
    
    .admin-item-content {
        gap: 8px;
    }
}