/* ============================================================
   CSS VARIABLES — tweak colors here, nowhere else
   ============================================================ */
:root {
    --color-bg:           #ffffff;
    --color-surface:      #ffffff;
    --color-text:         #0a0a0a;
    --color-text-muted:   #6b7280;
    --color-border:       #f0f0f0;

    /* Brand accent colors */
    --color-green:        #00bf63;
    --color-green-glow:   rgba(0, 191, 99, 0.15);
    --color-blue:         #2563eb;
    --color-blue-glow:    rgba(37, 99, 235, 0.15);
    --color-teal:         #0d9488;
    --color-teal-glow:    rgba(13, 148, 136, 0.15);

    /* Shadows */
    --shadow-card:        0 4px 24px rgba(0, 0, 0, 0.07), 0 1px 4px rgba(0, 0, 0, 0.04);
    --shadow-card-hover:  0 16px 48px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-btn:         0 4px 16px rgba(0, 0, 0, 0.15);

    /* Typography */
    --font:               'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Layout */
    --max-width:          1100px;
    --radius:             16px;
    --radius-sm:          10px;

    /* Transitions */
    --transition:         0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* Screen-reader only utility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
    padding: 96px 24px 72px;
    text-align: center;
}

.hero__inner {
    max-width: 640px;
    margin: 0 auto;
}

/* Avatar */
.hero__avatar {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    margin: 0 auto 32px;
    overflow: hidden;
    background-color: var(--color-border);
    box-shadow: var(--shadow-card);
    position: relative;
}

.hero__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.hero__avatar-placeholder {
    display: none;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-text-muted);
    background: var(--color-border);
    border-radius: 50%;
}

.hero__headline {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--color-text);
}

.hero__sub {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    font-weight: 400;
    color: var(--color-text-muted);
    line-height: 1.55;
}

/* ============================================================
   ADVENTURE CARDS
   ============================================================ */
.cards {
    padding: 16px 24px 80px;
}

.cards__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: var(--max-width);
    margin: 0 auto;
}

/* Base card */
.card {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 40px 32px;
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    border: 1.5px solid var(--color-border);
    cursor: pointer;
    transition:
        transform var(--transition),
        box-shadow var(--transition),
        border-color var(--transition),
        background-color var(--transition);
    will-change: transform;
    outline-offset: 4px;
}

.card:focus-visible {
    outline: 3px solid var(--color-blue);
}

.card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition), color var(--transition);
    background-color: var(--color-border);
    color: var(--color-text-muted);
}

.card__headline {
    font-size: clamp(1.15rem, 2vw, 1.35rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.25;
    color: var(--color-text);
}

.card__body {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.65;
    flex: 1;
}

.card__cta {
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    color: var(--color-text-muted);
    transition: color var(--transition);
    margin-top: 8px;
}

/* ---- Green card hover ---- */
.card--green:hover,
.card--green:focus-visible {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover), 0 0 0 3px var(--color-green-glow);
    border-color: var(--color-green);
    background-color: #f0fff8;
}
.card--green:hover .card__icon,
.card--green:focus-visible .card__icon {
    background-color: var(--color-green-glow);
    color: var(--color-green);
}
.card--green:hover .card__cta,
.card--green:focus-visible .card__cta { color: var(--color-green); }

/* ---- Blue card hover ---- */
.card--blue:hover,
.card--blue:focus-visible {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover), 0 0 0 3px var(--color-blue-glow);
    border-color: var(--color-blue);
    background-color: #eff6ff;
}
.card--blue:hover .card__icon,
.card--blue:focus-visible .card__icon {
    background-color: var(--color-blue-glow);
    color: var(--color-blue);
}
.card--blue:hover .card__cta,
.card--blue:focus-visible .card__cta { color: var(--color-blue); }

/* ---- Teal card hover ---- */
.card--teal:hover,
.card--teal:focus-visible {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover), 0 0 0 3px var(--color-teal-glow);
    border-color: var(--color-teal);
    background-color: #f0fdfa;
}
.card--teal:hover .card__icon,
.card--teal:focus-visible .card__icon {
    background-color: var(--color-teal-glow);
    color: var(--color-teal);
}
.card--teal:hover .card__cta,
.card--teal:focus-visible .card__cta { color: var(--color-teal); }

/* ============================================================
   FOOTER / LEAD GEN
   ============================================================ */
.footer {
    background-color: #fafafa;
    border-top: 1.5px solid var(--color-border);
}

.footer__inner {
    max-width: 600px;
    margin: 0 auto;
    padding: 80px 24px 64px;
    text-align: center;
}

.footer__eyebrow {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.footer__headline {
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 16px;
    color: var(--color-text);
}

.footer__sub {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 40px;
    line-height: 1.6;
}

/* Form */
.lead-form__group {
    display: flex;
    gap: 12px;
    width: 100%;
    margin-bottom: 12px;
}

.lead-form__input {
    flex: 1;
    height: 54px;
    padding: 0 20px;
    font-family: var(--font);
    font-size: 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
    box-shadow: var(--shadow-card);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.lead-form__input::placeholder {
    color: #b0b7c3;
}

.lead-form__input:focus {
    border-color: var(--color-blue);
    box-shadow: 0 0 0 4px var(--color-blue-glow), var(--shadow-card);
}

.lead-form__btn {
    height: 54px;
    padding: 0 28px;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    white-space: nowrap;
    background-color: var(--color-text);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    box-shadow: var(--shadow-btn);
    transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.lead-form__btn:hover {
    background-color: #222;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.lead-form__btn:active {
    transform: translateY(0);
}

.lead-form__disclaimer {
    font-size: 0.8rem;
    color: #b0b7c3;
}

/* Form feedback messages */
.form-message {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 24px;
    text-align: left;
}

.form-message--success {
    background-color: #f0fff8;
    border: 1.5px solid var(--color-green);
    color: #065f46;
}

.form-message--error {
    background-color: #fff5f5;
    border: 1.5px solid #f87171;
    color: #991b1b;
}

/* Footer bottom bar */
.footer__bottom {
    border-top: 1.5px solid var(--color-border);
    padding: 20px 24px;
    text-align: center;
    font-size: 0.82rem;
    color: #b0b7c3;
}

/* ============================================================
   RESPONSIVE — Tablet
   ============================================================ */
@media (max-width: 900px) {
    .cards__grid {
        grid-template-columns: 1fr 1fr;
    }

    .cards__grid .card:last-child {
        grid-column: 1 / -1;
        max-width: 480px;
        justify-self: center;
        width: 100%;
    }
}

/* ============================================================
   RESPONSIVE — Mobile
   ============================================================ */
@media (max-width: 600px) {
    .hero {
        padding: 64px 20px 48px;
    }

    .hero__avatar {
        width: 112px;
        height: 112px;
        margin-bottom: 24px;
    }

    .cards {
        padding: 8px 16px 56px;
    }

    .cards__grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .cards__grid .card:last-child {
        grid-column: auto;
        max-width: none;
        justify-self: auto;
    }

    .card {
        padding: 28px 24px;
    }

    .lead-form__group {
        flex-direction: column;
    }

    .lead-form__btn {
        width: 100%;
    }

    .footer__inner {
        padding: 56px 20px 48px;
    }
}