:root {
    --teal: #007777;
    --teal-dark: #005a5a;
    --teal-light: #17a2a2;
    --orange: #ff9f43;
    --sand: #f4f7f7;
    --slate: #203040;
    --text: #1f2a37;
    --muted: #5f6b7a;
    --border: rgba(31, 42, 55, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Montserrat', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--sand);
    color: var(--text);
    line-height: 1.6;
}

.tag {
    text-transform: uppercase;
    letter-spacing: 0.15rem;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--orange);
}

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

img {
    max-width: 100%;
    display: block;
}

header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

header .logo img {
    height: 36px;
}

header nav {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    overflow-x: auto;
}

header nav a {
    padding: 0.3rem 0.4rem;
    white-space: nowrap;
    font-weight: 600;
    color: var(--muted);
}

header nav a.active {
    color: var(--teal);
}

.btn,
button {
    font-family: inherit;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    background: var(--teal);
    color: #fff;
    font-weight: 600;
    border-radius: 999px;
    padding: 0.85rem 1.5rem;
    border: none;
    cursor: pointer;
    box-shadow: 0 12px 24px rgba(0, 119, 119, 0.18);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn.outline {
    background: transparent;
    color: var(--teal);
    border: 1px solid rgba(0, 119, 119, 0.3);
    box-shadow: none;
}

.btn.small {
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
}

.btn:active {
    transform: translateY(1px);
    box-shadow: 0 8px 18px rgba(0, 119, 119, 0.15);
}

main {
    padding: 1rem;
}

.section {
    background: #fff;
    border-radius: 22px;
    padding: 1.75rem;
    margin-bottom: 1.25rem;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.07);
    border: 1px solid var(--border);
}

.section h2 {
    margin: 0 0 0.5rem;
    font-size: 1.55rem;
    color: var(--slate);
}

.section p {
    margin: 0.5rem 0 0;
    color: var(--muted);
}

.progress-card {
    background: #f9fbfb;
    border-radius: 20px;
    border: 1px solid rgba(0, 119, 119, 0.12);
    padding: 1.5rem;
    margin-top: 1rem;
}

.progress-bar {
    width: 100%;
    height: 10px;
    border-radius: 999px;
    background: rgba(0, 119, 119, 0.15);
    margin: 0.75rem 0 0.5rem;
    overflow: hidden;
}

.progress-bar span {
    display: block;
    height: 100%;
    width: 68%;
    background: linear-gradient(90deg, var(--teal), var(--teal-light));
}

.hero {
    text-align: center;
    padding: 3rem 1.5rem 2.5rem;
    background: linear-gradient(135deg, rgba(0, 119, 119, 0.95), rgba(17, 65, 65, 0.95));
    border-radius: 26px;
    margin-bottom: 1.25rem;
    color: #fff;
}

.hero h1 {
    font-size: 2.1rem;
    margin: 0.4rem 0 0.7rem;
}

.hero p {
    color: rgba(255, 255, 255, 0.88);
    font-size: 1.05rem;
}

.hero-actions {
    margin-top: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.metric-card {
    background: rgba(255, 255, 255, 0.09);
    padding: 1rem;
    border-radius: 18px;
    text-align: left;
}

.metric-card span {
    display: block;
    font-size: 1.4rem;
    font-weight: 700;
}

.perk-list,
.bullet-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.perk-list li,
.bullet-list li {
    display: flex;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--muted);
}

.perk-list strong {
    color: var(--slate);
}

.card-grid {
    display: grid;
    gap: 0.85rem;
}

.card-grid .card {
    background: #f9fbfb;
    border-radius: 18px;
    padding: 1rem;
    border: 1px solid rgba(0, 119, 119, 0.1);
}

.video-frame {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
    margin-top: 1rem;
}

.video-frame iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.testimonial {
    background: #fefefe;
    border-radius: 18px;
    padding: 1.25rem;
    border: 1px solid var(--border);
}

.testimonial p {
    margin: 0;
}

.testimonial span {
    display: block;
    margin-top: 0.9rem;
    font-weight: 600;
    color: var(--slate);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1rem;
}

.testimonial-author img {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.15);
}

.testimonial-author strong {
    display: block;
    color: var(--slate);
    font-weight: 600;
}

.testimonial-author small {
    display: block;
    color: var(--muted);
    font-size: 0.85rem;
}

.info-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.info-list li {
    display: flex;
    gap: 0.75rem;
}

.info-list i {
    color: var(--teal);
    font-size: 1.2rem;
}

.pitch-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.pitch-list li {
    display: flex;
    gap: 0.65rem;
    color: var(--muted);
}

.pitch-list i {
    color: var(--teal);
    margin-top: 0.2rem;
}

footer {
    text-align: center;
    padding: 2rem 1rem 3rem;
    color: var(--muted);
    font-size: 0.9rem;
}

footer nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

footer nav a {
    color: var(--teal);
    font-weight: 600;
}

.notice {
    text-align: center;
    font-size: 0.95rem;
    color: var(--muted);
}

.notice button {
    background: none;
    border: none;
    color: var(--teal);
    font-weight: 600;
    cursor: pointer;
}

.accordion {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.accordion details {
    background: #f9fbfb;
    border-radius: 18px;
    padding: 1rem;
    border: 1px solid rgba(0, 119, 119, 0.15);
}

.accordion summary {
    font-weight: 600;
    cursor: pointer;
}

.cta-banner {
    text-align: center;
    background: linear-gradient(135deg, rgba(0, 119, 119, 0.9), rgba(26, 157, 157, 0.9));
    color: #fff;
}

.cta-banner p {
    color: rgba(255, 255, 255, 0.85);
}

@media (min-width: 768px) {
    body {
        max-width: 540px;
        margin: 0 auto;
        background: linear-gradient(135deg, #f3f7f8, #e8f4f5);
    }

    main {
        padding: 2rem 0 3rem;
    }
}