/* =========================
   HEADER
========================= */

.header {
    border-bottom: 1px solid var(--border);
    background: rgba(11, 13, 16, 0.92);

    position: sticky;
    top: 0;
    z-index: 100;

    backdrop-filter: blur(12px);
}

.nav {
    min-height: 72px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 24px;
}

.logo {
    flex-shrink: 0;

    font-size: 24px;
    font-weight: 800;
    letter-spacing: -1px;
}

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

.nav-main {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 20px;
    margin-left: auto;
    flex: 1;
}

.nav nav {
    display: flex;
    gap: 24px;

    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
}

.nav nav a {
    color: var(--muted);
    font-size: 13px;

    transition: 0.2s;
}

.nav nav a:hover {
    color: var(--text);
}

.nav nav a:focus-visible,
.menu-toggle:focus-visible,
.nav-user-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
    border-radius: 6px;
}

.nav nav a:focus-visible {
    color: var(--text);
}

.nav nav a[aria-current="page"] {
    color: var(--accent);
    font-weight: 800;
}

.nav-auth-link,
.nav-auth-only {
    display: none;
}

.nav-auth-link.visible,
.nav-auth-only.visible {
    display: inline-block;
}

.nav nav .nav-auth-link.visible,
.nav nav .nav-auth-only.visible {
    display: block;
}

.nav-user-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    padding: 0;
    color: var(--muted);
    border: 1px solid var(--border);
    border-radius: 50%;
    background: transparent;
    transition:
        color 0.2s,
        border-color 0.2s,
        background 0.2s,
        transform 0.2s;
    flex-shrink: 0;
}

.nav-user-link:hover {
    color: var(--text);
    border-color: #3b424c;
    background: var(--surface-light);
    transform: translateY(-1px);
}

.nav-user-link svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: currentColor;
}

.nav-user-link[aria-current="page"] {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(184, 255, 61, 0.08);
}


/* =========================
   MOBILE MENU
========================= */

.menu-toggle {
    display: none;

    width: 42px;
    height: 42px;

    padding: 9px;

    background: transparent;

    border: 1px solid var(--border);
    border-radius: 8px;

    cursor: pointer;

    flex-direction: column;
    align-items: center;
    justify-content: center;

    gap: 5px;
}

.menu-toggle span {
    display: block;

    width: 20px;
    height: 2px;

    background: var(--text);

    border-radius: 2px;

    transition:
        transform 0.2s,
        opacity 0.2s;
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}


/* =========================
   HERO
========================= */

.hero {
    padding: 130px 0 110px;

    border-bottom: 1px solid var(--border);
}

.hero-content {
    max-width: 900px;
}

.eyebrow {
    color: var(--accent);

    font-size: 12px;
    font-weight: 800;

    letter-spacing: 2px;
}

.hero h1 {
    margin-top: 20px;

    max-width: 900px;

    font-size: clamp(48px, 7vw, 82px);
    line-height: 0.98;

    letter-spacing: -4px;
}

.hero h1 span {
    color: var(--accent);
}

.hero p {
    max-width: 680px;

    margin-top: 28px;

    color: var(--muted);

    font-size: 18px;
}

.hero-actions {
    display: flex;

    align-items: center;

    gap: 12px;

    flex-wrap: wrap;

    margin-top: 36px;
}

.hero-button {
    display: inline-block;

    padding: 14px 22px;

    background: var(--accent);
    color: #080a0c;

    border: 1px solid var(--accent);

    border-radius: 8px;

    font-weight: 800;

    transition: 0.2s;
}

.hero-button:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);

    transform: translateY(-2px);
}

.hero-button.secondary {
    background: transparent;

    color: var(--text);

    border-color: var(--border);
}

.hero-button.secondary:hover {
    background: var(--surface-light);

    border-color: #3b424c;
}


/* =========================
   SECTION HEADING
========================= */

.section-heading {
    margin-bottom: 45px;
}

.section-heading h1,
.section-heading h2 {
    max-width: 700px;

    margin-top: 12px;

    font-size: 42px;
    line-height: 1.05;

    letter-spacing: -2px;
}

.section-heading p {
    max-width: 680px;

    margin-top: 16px;

    color: var(--muted);

    font-size: 16px;
}


/* =========================
   RESPONSIVE
========================= */

@media (max-width: 1100px) {

    .nav {
        padding: 12px 0;
    }

    .nav nav {
        gap: 16px;
    }

}


@media (max-width: 700px) {

    .nav {
        justify-content: space-between;
        position: relative;
    }

    .nav-main {
        align-items: center;
        gap: 12px;
        margin-left: 0;
        flex: none;
    }

    .menu-toggle {
        display: flex;
    }

    .nav nav {
        display: none;

        position: absolute;

        top: 100%;
        left: 0;
        right: 0;

        padding: 8px 0;

        flex-direction: column;
        gap: 0;

        background: rgba(11, 13, 16, 0.98);

        border: 1px solid var(--border);
        border-top: none;

        border-radius: 0 0 10px 10px;

        z-index: 200;
    }

    .nav nav.open {
        display: flex;
    }

    .nav nav a {
        display: block;

        width: 100%;

        padding: 14px 20px;

        font-size: 14px;
    }

    .nav nav .nav-auth-link.visible,
    .nav nav .nav-auth-only.visible {
        display: block;
        width: 100%;
    }

    .nav-user-link {
        width: 42px;
        height: 42px;
    }

    .nav nav a:hover {
        background: var(--surface-light);
    }

}


@media (max-width: 600px) {

    .container {
        width: min(100% - 28px, 1120px);
    }

    .nav {
        height: 62px;
    }

    .hero {
        padding: 90px 0 80px;
    }

    .hero h1 {
        font-size: 48px;

        letter-spacing: -2.5px;
    }

    .hero p {
        font-size: 16px;
    }

    .hero-actions {
        align-items: stretch;

        flex-direction: column;
    }

    .hero-button {
        text-align: center;
    }

    .section-heading h1,
    .section-heading h2 {
        font-size: 34px;
    }

}