@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg: #050814;
    --card-bg: rgba(11, 16, 32, 0.75);
    --border: #1d2740;
    --gold: #ffd700;
    --purple: #8b3dff;
    --blue: #00b7ff;
    --green: #00ff88;
    --text: #aeb7cc;
    --white: #ffffff;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg);
    color: var(--white);
    overflow-x: hidden;
    min-height: 100vh;
}

/* NAVBAR & LOGO FIX */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
    background: rgba(5, 8, 20, 0.9);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
}

.logo span {
    color: var(--gold);
}

.nav-logo-img, .footer-logo-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 25px;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: 0.3s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--gold);
}

/* PAGE HEADER & LAYOUT */
.page-header {
    text-align: center;
    padding: 50px 20px 20px;
}

.section-small-title {
    color: var(--gold);
    font-size: 12px;
    letter-spacing: 2px;
    font-weight: 600;
    margin-bottom: 5px;
}

.section-title {
    font-size: 32px;
    margin-bottom: 10px;
}

.section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* BUTTON STYLES */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.primary-btn {
    background: linear-gradient(135deg, var(--purple), var(--blue));
    color: var(--white);
    border: none;
    box-shadow: 0 4px 15px rgba(139, 61, 255, 0.4);
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 61, 255, 0.6);
}

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

.outline-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.3);
}

/* SEARCH & FILTER CONTROLS */
.courses-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    flex: 1;
    min-width: 260px;
}

.search-box input {
    width: 100%;
    background: rgba(13, 20, 36, 0.8);
    border: 1px solid var(--border);
    padding: 12px 20px 12px 45px;
    border-radius: 30px;
    color: var(--white);
    outline: none;
    transition: 0.3s;
}

.search-box input:focus {
    border-color: var(--gold);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.3);
}

.search-box i {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text);
}

.course-filter-btns {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.c-filter-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 18px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 12px;
    transition: 0.3s;
}

.c-filter-btn.active, .c-filter-btn:hover {
    background: var(--purple);
    border-color: var(--purple);
    color: var(--white);
    box-shadow: 0 0 15px rgba(139, 61, 255, 0.4);
}

/* COURSES GRID */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 30px;
}

.course-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 30px 25px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    backdrop-filter: blur(10px);
    transition: all 0.4s ease;
}

.course-card:hover {
    transform: translateY(-8px);
    border-color: var(--gold);
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.2);
}

.badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0, 255, 136, 0.1);
    color: var(--green);
    border: 1px solid var(--green);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 10px;
    font-weight: 600;
}

.course-icon-box {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: rgba(139, 61, 255, 0.1);
    border: 1px solid var(--purple);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--purple);
    margin-bottom: 20px;
}

.course-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.course-details {
    color: var(--text);
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border);
    padding-top: 15px;
    margin-bottom: 20px;
    font-size: 12px;
    color: var(--text);
}

.course-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--gold);
}

/* AFFILIATE BOX */
.affiliate-box {
    margin-top: 60px;
    background: linear-gradient(135deg, rgba(18, 12, 36, 0.9), rgba(8, 13, 28, 0.9));
    border: 2px dashed var(--gold);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 0 35px rgba(255, 215, 0, 0.15);
}

/* MODAL POPUP */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: 0.3s ease;
    z-index: 2000;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: #090e1a;
    border: 1px solid var(--gold);
    width: 90%;
    max-width: 480px;
    border-radius: 16px;
    padding: 30px;
    position: relative;
    box-shadow: 0 0 40px rgba(255, 215, 0, 0.3);
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 24px;
    cursor: pointer;
    color: var(--text);
}

.close-modal:hover { color: var(--gold); }

/* FOOTER */
footer {
    text-align: center;
    padding: 30px 20px;
    border-top: 1px solid var(--border);
    margin-top: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

footer p {
    color: var(--text);
    font-size: 13px;
}