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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #1a1a2e;
    color: #e0e0e0;
    line-height: 1.6;
}

/* ── Header ── */
header {
    background-color: #0f0f1a;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 40px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 12px rgba(0,0,0,.5);
}

header h1 {
    font-size: 1.6rem;
    color: #7ba1e8;
    font-weight: 700;
    letter-spacing: .5px;
    flex: 1;
    text-align: center;
}

.badge-btn {
    display: inline-block;
    padding: 8px 22px;
    background: #2d5daa;
    color: #fff;
    text-decoration: none;
    border-radius: 20px;
    font-size: .95rem;
    font-weight: 600;
    transition: background .25s;
}

.badge-btn:hover {
    background: #3a6fcc;
}

/* ── Hero / intro ── */
.hero {
    text-align: center;
    padding: 50px 20px 30px;
}

.hero p {
    font-size: 1.25rem;
    color: #b0b0c8;
    max-width: 700px;
    margin: 0 auto;
}

/* ── Video ── */
.video-section {
    text-align: center;
    padding: 10px 20px 40px;
}

.video-section iframe {
    width: 100%;
    max-width: 720px;
    aspect-ratio: 16/9;
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,.4);
}

/* ── Feature rows (alternating) ── */
.features {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px 20px 60px;
}

.feature-row {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 50px;
}

.feature-row.reverse {
    flex-direction: row-reverse;
}

.feature-text {
    flex: 1;
    font-size: 1.05rem;
    color: #c8c8dc;
}

.feature-text h3 {
    color: #7ba1e8;
    margin-bottom: 10px;
    font-size: 1.15rem;
}

.feature-img {
    flex: 1;
    text-align: center;
}

.feature-img img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0,0,0,.35);
}

.feature-img .placeholder {
    width: 100%;
    aspect-ratio: 16/10;
    background: #2a2a44;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #555;
    font-size: .9rem;
    border: 2px dashed #444;
}

/* ── Footer ── */
footer {
    background-color: #0f0f1a;
    text-align: center;
    padding: 20px;
    color: #666;
    font-size: .85rem;
}

/* ── Contact page ── */
.contact-section {
    max-width: 620px;
    margin: 60px auto;
    padding: 0 20px;
}

.contact-section h2 {
    color: #7ba1e8;
    font-size: 1.4rem;
    margin-bottom: 6px;
    text-align: center;
}

.contact-section .subtitle {
    text-align: center;
    color: #999;
    margin-bottom: 30px;
}

.contact-form label {
    display: block;
    margin-bottom: 5px;
    color: #b0b0c8;
    font-weight: 600;
    font-size: .95rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 14px;
    margin-bottom: 20px;
    border: 1px solid #3a3a5a;
    border-radius: 8px;
    background: #22223a;
    color: #e0e0e0;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color .2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #5a8ad8;
}

.contact-form textarea {
    min-height: 160px;
    resize: vertical;
}

.contact-form button {
    display: block;
    width: 100%;
    padding: 14px;
    background: #2d5daa;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .25s;
}

.contact-form button:hover {
    background: #3a6fcc;
}

.msg-ok {
    background: #1a3a1a;
    color: #6dda6d;
    padding: 14px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 20px;
    display: none;
}

.msg-err {
    background: #3a1a1a;
    color: #da6d6d;
    padding: 14px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 20px;
    display: none;
}

/* ── Responsive ── */
@media (max-width: 700px) {
    header {
        padding: 14px 20px;
    }

    header h1 {
        font-size: 1.15rem;
    }

    .feature-row,
    .feature-row.reverse {
        flex-direction: column;
    }

    .feature-row {
        gap: 20px;
    }
}