/* style.css - Complete CSS for IDDM Website */
:root {
    --primary: #4361ee;
    --secondary: #3a0ca3;
    --accent: #f72585;
    --light: #f8f9fa;
    --dark: #212529;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --dark-gray: #495057;
    --success: #4cc9f0;
    --warning: #f8961e;
    --danger: #e63946;
    --border-radius: 10px;
    --box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

.dark-theme {
    --primary: #4895ef;
    --secondary: #560bad;
    --light: #121212;
    --dark: #f8f9fa;
    --gray: #adb5bd;
    --light-gray: #1e1e1e;
    --dark-gray: #343a40;
    --box-shadow: 0 10px 20px rgba(0,0,0,0.3);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.6;
    transition: var(--transition);
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Header & Navigation */
header {
    background-color: var(--light);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.dark-theme header {
    background-color: var(--light-gray);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
}

.logo {
    width: 60px;
    height: 60px;
    background-color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 24px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.logo-text {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    font-size: 17px;
    position: relative;
    padding: 5px 0;
    transition: var(--transition);
}

.dark-theme .nav-link {
    color: var(--dark);
}

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

.nav-link.active:after {
    width: 100%;
}

.nav-link:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--accent);
    transition: var(--transition);
}

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

.nav-link:hover:after {
    width: 100%;
}

.theme-toggle {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark);
    cursor: pointer;
    transition: var(--transition);
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dark-theme .theme-toggle {
    color: var(--dark);
}

.theme-toggle:hover {
    color: var(--primary);
    transform: rotate(30deg);
    background-color: rgba(0,0,0,0.05);
}

.hamburger {
    display: none;
    font-size: 24px;
    background: none;
    border: none;
    color: var(--dark);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.dark-theme .hamburger {
    color: var(--dark);
}

.hamburger:hover {
    background-color: rgba(0,0,0,0.05);
}

/* Main Content */
main {
    flex: 1;
    padding: 40px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: var(--primary);
    position: relative;
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background-color: var(--accent);
    border-radius: 2px;
}

/* Buttons */
.btn {
    padding: 15px 30px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--secondary);
    transform: translateY(-5px);
    box-shadow: var(--box-shadow);
}

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

.btn-secondary:hover {
    background-color: var(--primary);
    color: white;
    transform: translateY(-5px);
    box-shadow: var(--box-shadow);
}

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

.btn-accent:hover {
    background-color: #d1166a;
    transform: translateY(-5px);
    box-shadow: var(--box-shadow);
}

.btn-small {
    padding: 10px 20px;
    font-size: 16px;
}

.btn-large {
    padding: 20px 40px;
    font-size: 20px;
}

.btn-full {
    width: 100%;
}

/* Home Page Specific */
.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.1) 0%, rgba(58, 12, 163, 0.05) 100%);
    position: relative;
    overflow: hidden;
}

.dark-theme .hero {
    background: linear-gradient(135deg, rgba(67, 97, 238, 0.15) 0%, rgba(58, 12, 163, 0.1) 100%);
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--primary);
    animation: slideUp 1s ease-out;
}

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

.hero p {
    font-size: 20px;
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--gray);
    animation: slideUp 1s ease-out 0.2s both;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
    animation: slideUp 1s ease-out 0.4s both;
}

.features {
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.feature-card:hover {
    transform: translateY(-15px);
}

.feature-icon {
    font-size: 50px;
    color: var(--primary);
    margin-bottom: 25px;
}

.feature-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--dark);
}

.feature-card p {
    color: var(--gray);
}

/* Resource Curator Page Styles */
.search-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--light-gray);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-top: 30px;
    margin-bottom: 50px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
}

.form-group select, .form-group input, .form-group textarea {
    width: 100%;
    padding: 15px;
    border-radius: var(--border-radius);
    border: 1px solid var(--gray);
    background-color: var(--light);
    color: var(--dark);
    font-size: 16px;
    transition: var(--transition);
}

.dark-theme .form-group select, 
.dark-theme .form-group input,
.dark-theme .form-group textarea {
    background-color: var(--light-gray);
    border-color: var(--dark-gray);
    color: var(--dark);
}

.form-group select:focus, .form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.resource-type, .level-type, .skill-type {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.resource-type label, .level-type label, .skill-type label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 12px 20px;
    background-color: var(--light);
    border-radius: var(--border-radius);
    border: 2px solid var(--light-gray);
    transition: var(--transition);
    flex: 1;
    min-width: 150px;
    justify-content: center;
}

.dark-theme .resource-type label,
.dark-theme .level-type label,
.dark-theme .skill-type label {
    background-color: var(--light-gray);
}

.resource-type input[type="radio"],
.level-type input[type="radio"],
.skill-type input[type="checkbox"] {
    display: none;
}

.resource-type input[type="radio"]:checked + label,
.level-type input[type="radio"]:checked + label,
.skill-type input[type="checkbox"]:checked + label {
    border-color: var(--primary);
    background-color: rgba(67, 97, 238, 0.1);
    color: var(--primary);
}

.results-container {
    margin-top: 30px;
    display: none;
}

.resource-result, .plan-result, .project-result {
    background: var(--light-gray);
    border-radius: var(--border-radius);
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--box-shadow);
    animation: slideUp 0.5s ease-out;
}

.level-info {
    color: var(--gray);
    font-style: italic;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--gray);
}

.loading {
    text-align: center;
    padding: 40px;
    display: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--light-gray);
    border-top: 5px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

.video-container iframe {
    width: 100%;
    height: 400px;
    border-radius: var(--border-radius);
    border: none;
}

.questions-container {
    display: grid;
    gap: 30px;
    margin-top: 20px;
}

.question-set h4 {
    color: var(--primary);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary);
}

.question-item {
    background: var(--light);
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 10px;
    border-left: 4px solid var(--primary);
    transition: var(--transition);
}

.dark-theme .question-item {
    background: rgba(255, 255, 255, 0.05);
}

.question-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 10px rgba(0,0,0,0.1);
}

.books-container, .website-container, .project-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.book-card, .website-card, .project-card {
    background: var(--light);
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
    height: 100%;
}

.dark-theme .book-card,
.dark-theme .website-card,
.dark-theme .project-card {
    background: rgba(255, 255, 255, 0.05);
}

.book-card:hover, .website-card:hover, .project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.book-card h4, .website-card h4, .project-card h4 {
    color: var(--primary);
    margin-bottom: 10px;
    font-size: 20px;
}

.book-card p, .website-card p, .project-card p {
    margin-bottom: 8px;
    font-size: 15px;
}

.book-card ul, .website-card ul, .project-card ul {
    margin-left: 20px;
    margin-bottom: 15px;
}

.back-btn {
    margin-top: 30px;
    text-align: center;
}

/* Exam Planner Page Styles */
.days-input {
    display: flex;
    align-items: center;
    gap: 15px;
}

.days-input input {
    max-width: 150px;
}

.subjects-container {
    margin-bottom: 30px;
}

.subject-item {
    background: var(--light);
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    border: 1px solid var(--light-gray);
    transition: var(--transition);
}

.dark-theme .subject-item {
    background: var(--light-gray);
}

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

.subject-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.subject-header h4 {
    margin: 0;
    color: var(--primary);
}

.remove-subject {
    background: var(--danger);
    color: white;
    border: none;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.remove-subject:hover {
    background: #c1121f;
    transform: scale(1.1);
}

.topic-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.topic-tag {
    background: var(--primary);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.topic-tag .remove-topic {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 16px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.plan-container {
    display: grid;
    gap: 30px;
}

.day-plan {
    background: var(--light);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--box-shadow);
    border-left: 5px solid var(--primary);
}

.dark-theme .day-plan {
    background: var(--light-gray);
}

.day-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--primary);
}

.day-header h3 {
    margin: 0;
    color: var(--primary);
}

.day-number {
    background: var(--accent);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.tasks-list {
    list-style: none;
}

.tasks-list li {
    padding: 12px 0;
    border-bottom: 1px dashed var(--gray);
    display: flex;
    align-items: center;
    gap: 15px;
}

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

.task-time {
    font-weight: bold;
    color: var(--primary);
    min-width: 100px;
}

.task-checkbox {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 2px solid var(--primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.task-checkbox.checked {
    background: var(--primary);
    color: white;
}

/* Project Generator Page Styles */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.skill-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: var(--light);
    border-radius: var(--border-radius);
    border: 2px solid var(--light-gray);
    cursor: pointer;
    transition: var(--transition);
}

.dark-theme .skill-option {
    background: var(--light-gray);
}

.skill-option:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
}

.skill-option.selected {
    border-color: var(--primary);
    background-color: rgba(67, 97, 238, 0.1);
}

.skill-checkbox {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 2px solid var(--gray);
    display: flex;
    align-items: center;
    justify-content: center;
}

.skill-option.selected .skill-checkbox {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.skill-icon {
    font-size: 24px;
    color: var(--primary);
}

.project-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    display: flex;
    flex-direction: column;
}

.project-difficulty {
    display: inline-block;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 15px;
    align-self: flex-start;
}

.difficulty-beginner {
    background: rgba(76, 201, 240, 0.2);
    color: var(--success);
}

.difficulty-intermediate {
    background: rgba(248, 150, 30, 0.2);
    color: var(--warning);
}

.difficulty-advanced {
    background: rgba(230, 57, 70, 0.2);
    color: var(--danger);
}

.project-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
    padding-top: 15px;
}

.skill-tag {
    background: var(--light-gray);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 13px;
    color: var(--gray);
}

.dark-theme .skill-tag {
    background: rgba(255, 255, 255, 0.1);
}

/* Footer */
footer {
    background-color: var(--dark);
    color: var(--light);
    padding: 60px 0 30px;
    margin-top: auto;
}

.dark-theme footer {
    background-color: #000;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 28px;
    font-weight: 800;
    color: white;
    margin-bottom: 20px;
}

.footer-about p {
    margin-bottom: 20px;
    color: #adb5bd;
}

.footer-links h4, .footer-contact h4 {
    font-size: 20px;
    margin-bottom: 25px;
    color: white;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #adb5bd;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.footer-contact p {
    color: #adb5bd;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #adb5bd;
    font-size: 14px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease-out;
}

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

.modal-content {
    background-color: var(--light);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 40px;
    position: relative;
    animation: slideUpModal 0.5s ease-out;
}

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

.dark-theme .modal-content {
    background-color: var(--light-gray);
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 28px;
    background: none;
    border: none;
    color: var(--dark);
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.dark-theme .close-modal {
    color: var(--dark);
}

.close-modal:hover {
    color: var(--accent);
    background-color: rgba(0,0,0,0.05);
    transform: rotate(90deg);
}

.modal h2 {
    margin-bottom: 20px;
    color: var(--primary);
}

.modal p {
    margin-bottom: 25px;
    color: var(--gray);
}

.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: var(--border-radius);
    border: 1px solid var(--gray);
    background-color: var(--light);
    color: var(--dark);
    transition: var(--transition);
    resize: vertical;
}

.dark-theme .contact-form input, 
.dark-theme .contact-form textarea {
    background-color: var(--light-gray);
    border-color: var(--dark-gray);
    color: var(--dark);
}

.contact-form input:focus, .contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.contact-form button {
    width: 100%;
}

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

.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mt-40 { margin-top: 40px; }
.mt-50 { margin-top: 50px; }

.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }
.mb-40 { margin-bottom: 40px; }
.mb-50 { margin-bottom: 50px; }

.p-20 { padding: 20px; }
.p-30 { padding: 30px; }

.hidden { display: none; }

/* Responsive Styles */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 40px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .project-container {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 100px;
        left: 0;
        width: 100%;
        background-color: var(--light);
        flex-direction: column;
        align-items: center;
        padding: 30px 0;
        gap: 25px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        transform: translateY(-150%);
        transition: var(--transition);
        z-index: 999;
    }
    
    .dark-theme .nav-links {
        background-color: var(--light-gray);
        box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    }
    
    .nav-links.active {
        transform: translateY(0);
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .hero-btns {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .search-container {
        padding: 30px 20px;
    }
    
    .resource-type, .level-type, .skill-type {
        flex-direction: column;
    }
    
    .resource-type label, .level-type label, .skill-type label {
        min-width: 100%;
    }
    
    .days-input {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .days-input input {
        max-width: 100%;
    }
    
    .skills-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .project-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 60px 0;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .features, .search-container {
        padding: 60px 0;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
    
    .modal-content {
        padding: 30px 20px;
    }
    
    .book-card, .website-card, .project-card {
        padding: 20px;
    }
    
    .subject-item {
        padding: 15px;
    }
    
    .day-plan {
        padding: 20px;
    }
}