/* ===== GLOBAL STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Times New Roman', Times, serif;
}

body {
    background: linear-gradient(135deg, #f5f7fa 0%, #e1e6ed 100%);
    font-family: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333;
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
    min-height: 100vh;
}

.page-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

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

/* ===== TYPOGRAPHY ===== */
h1,
h2,
h3 {
    margin-bottom: 15px;
    color: #2c3e50;
    font-weight: 600;
}

p {
    margin-bottom: 15px;
}

.section-title {
    text-align: center;
    margin-bottom: 30px;
}

.section-title h2 {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 10px;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #3498db, #1abc9c);
    margin: 0 auto;
    border-radius: 2px;
}

/* ===== CARDS ===== */
.card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

/* ===== HEADER ===== */
header {
    background: linear-gradient(135deg, #1a252f, #2c3e50);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    position: sticky;
    top: 20px;
    z-index: 10;
    size: 20px;
    width: auto;
    border-radius: 120px;
    margin: 20px;
}

header:hover{
    background: linear-gradient(135deg, #3c444b, #464c53);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

#mainTitle {
    color: white;
    text-decoration: none;
    font-size: 2.2rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

/* Navigation */
.menu {
    list-style: none;
    display: flex;
    gap: 10px;
}

.menu li a {
    display: block;
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 500;
    transition: background-color 0.3s, transform 0.2s;
}

.menu li a:hover {
    background: linear-gradient(135deg, #3498db, #1abc9c);
    transform: scale(1.05);
}

/* ===== HERO SECTION ===== */
.hero {
    margin: 30px 0;
}

.hero-card {
    background: linear-gradient(135deg, #1a252f, #2c3e50);
    color: white;
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.hero-card h2 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.hero-card hr {
    border: 1px solid rgba(255, 255, 255, 0.3);
    width: 50%;
    margin: 20px auto;
}

/* ===== FAVORITES GRID ===== */
.favorites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 20px;
}

.favorites-grid .card {
    height: 100%;
}

.favorites-grid h3 {
    color: #3498db;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.favorites-grid ul,
.favorites-grid ol {
    padding-left: 20px;
}

.favorites-grid li {
    margin-bottom: 8px;
}

.favorites-grid a {
    color: #1abc9c;
    text-decoration: none;
    font-weight: 500;
}

.favorites-grid a:hover {
    text-decoration: underline;
}

/* ===== TABLE ===== */
.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 10px;
    overflow: hidden;
}

th,
td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background: linear-gradient(135deg, #3498db, #1abc9c);
    color: white;
    font-weight: 600;
}

tr:nth-child(even) {
    background-color: #f8f9fa;
}

tr:hover {
    background-color: #e9ecef;
}

/* ===== MEDIA GRID ===== */
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.media-card {
    text-align: center;
}

.media-card figure {
    margin: 0;
}

.media-card img,
.media-card video {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.media-card figcaption {
    margin-top: 10px;
    font-style: italic;
    color: #7f8c8d;
}

/* ===== INTERACTIVE FEATURES ===== */
#interactive-features {
    margin: 40px 0;
}

.features-wrapper {
    background: white;
}

.feature-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

button {
    background: linear-gradient(135deg, #3498db, #2980b9);
    border: none;
    color: white;
    padding: 12px 25px;
    font-size: 1rem;
    border-radius: 50px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    font-weight: 500;
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(52, 152, 219, 0.4);
}

.feature-output {
    background: #ecf0f1;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    min-height: 100px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

#greeting {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 10px;
}

#dateTimeDisplay {
    color: #7f8c8d;
    font-family: monospace;
}

/* ===== FORM ===== */
.contact-section {
    margin: 40px 0;
}

.form-wrapper {
    max-width: 600px;
    margin: 0 auto;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #2c3e50;
}

input[type=text],
input[type=email],
textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

/* ===== FOOTER ===== */
footer {
    background: linear-gradient(135deg, #2c3e50, #1a252f);
    color: white;
    margin: auto;
    padding: 20px 0;
    text-align: center;
    width: auto;
    border-radius: 50px;
    margin: 20px;
}

footer:hover {
    background: linear-gradient(135deg, #1a252f, #2c3e50);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.footer-content p {
    margin: 0;
    opacity: 0.9;
}

/* ===== DARK MODE ===== */
body.dark-mode {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #e0e0e0;
}

body.dark-mode .card {
    background: #1e2a3a;
    color: #e0e0e0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3 {
    color: #ffffff;
}

body.dark-mode .section-title h2 {
    color: #ffffff;
}

body.dark-mode .menu li a:hover {
    background: linear-gradient(135deg, #1abc9c, #16a085);
    color: #000;
}

body.dark-mode .feature-output {
    background: #2a3a4a;
    color: #e0e0e0;
}

body.dark-mode #greeting {
    color: #ffffff;
}

body.dark-mode table {
    background: #1e2a3a;
    color: #e0e0e0;
}

body.dark-mode th {
    background: linear-gradient(135deg, #1abc9c, #16a085);
    color: #000;
}

body.dark-mode td {
    border-color: #3a4a5a;
}

body.dark-mode tr:nth-child(even) {
    background-color: #263238;
}

body.dark-mode tr:hover {
    background-color: #2e3c47;
}

body.dark-mode input,
body.dark-mode textarea {
    background: #263238;
    color: white;
    border-color: #3a4a5a;
}

body.dark-mode label {
    color: #ffffff;
}

body.dark-mode footer {
    background: linear-gradient(135deg, #0f0f1f, #1a1a2e);
}

/* ===== RESPONSIVE ===== */
@media screen and (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }

    .menu {
        justify-content: center;
        margin-top: 10px;
    }

    .hero-card h2 {
        font-size: 2rem;
    }

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

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

    .feature-buttons {
        flex-direction: column;
        align-items: center;
    }

    button {
        width: 100%;
        max-width: 300px;
    }
}