/* Explain: Styles for reusable UI components like buttons, links, and forms. */
/* ---------- Typographic labels ---------- */
.eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    text-transform: uppercase;
    letter-spacing: var(--track);
    font-size: 0.68rem;
    color: var(--text-muted);
}

.section-title {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: clamp(2.1rem, 5vw, 3.4rem);
    line-height: 1.1;
    letter-spacing: 0.01em;
}

.rule {
    width: 3.25rem;
    height: 1px;
    background: var(--accent-color);
    border: 0;
}

/* ---------- Brand monogram ---------- */
.ac-mono {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border: 1px solid var(--accent-color);
    border-radius: 9999px;
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--text-color);
    flex: none;
}

/* ---------- Buttons ---------- */
.btn-line,
.btn-solid {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    padding: 0.85rem 1.9rem;
    font-family: var(--font-body);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    cursor: pointer;
    border: 1px solid var(--text-color);
    background: transparent;
    color: var(--text-color);
    transition: background-color .35s ease, color .35s ease, border-color .35s ease;
}

.btn-line:hover {
    background: var(--text-color);
    color: #fff;
}

.btn-solid {
    background: var(--text-color);
    color: #fff;
}

.btn-solid:hover {
    background: var(--primary-hover);
}

.btn-solid:disabled {
    opacity: .55;
    cursor: default;
}

.btn-line--light {
    border-color: rgba(255, 255, 255, 0.7);
    color: #fff;
}

.btn-line--light:hover {
    background: #fff;
    color: var(--text-color);
}

.btn-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-color);
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--border-color);
    padding: 0 0 0.25rem;
    cursor: pointer;
    transition: border-color .3s ease, color .3s ease;
}

.btn-link:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* ---------- Navigation ---------- */
.nav-link {
    position: relative;
    display: inline-block;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--text-color);
    padding: 0.35rem 0;
    transition: color .3s ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 1px;
    background: var(--accent-color);
    transition: width .35s ease;
}

.nav-link:hover {
    color: var(--accent-color);
}

.nav-link:hover::after {
    width: 100%;
}

.footer-link {
    transition: color .3s ease;
}

.footer-link:hover {
    color: var(--accent-color);
}

/* ---------- Forms ---------- */
.field {
    width: 100%;
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--border-color);
    padding: 0.7rem 0;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-color);
    transition: border-color .3s ease;
}

.field:focus {
    outline: none;
    border-color: var(--accent-color);
}

.field::placeholder {
    color: #b6b4ac;
}

.form-note {
    font-size: 0.85rem;
    min-height: 1.25rem;
}

.form-note--ok { color: var(--accent-teal); }
.form-note--error { color: #b4453f; }

/* ---------- Social ---------- */
.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.4rem;
    height: 2.4rem;
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    color: var(--text-color);
    background: transparent;
    cursor: pointer;
    transition: background-color .3s ease, color .3s ease, border-color .3s ease;
}

.social-link:hover {
    background: var(--text-color);
    color: #fff;
    border-color: var(--text-color);
}

/* ---------- Toast ---------- */
.app-toast {
    position: fixed;
    left: 50%;
    bottom: 2rem;
    transform: translate(-50%, 1.5rem);
    max-width: 90vw;
    background: var(--text-color);
    color: #fff;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    padding: 0.75rem 1.4rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease, transform .3s ease;
    z-index: 120;
}

.app-toast.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
}

/* ---------- Contact message modal ---------- */
.contact-modal {
    position: fixed;
    inset: 0;
    z-index: 110;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
    background: rgba(8, 8, 8, 0.6);
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s ease, visibility .3s ease;
}

.contact-modal.is-open {
    opacity: 1;
    visibility: visible;
}

.contact-modal__panel {
    position: relative;
    width: 100%;
    max-width: 32rem;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    padding: 2.5rem 1.75rem;
    transform: translateY(1rem);
    transition: transform .35s ease;
}

.contact-modal.is-open .contact-modal__panel {
    transform: translateY(0);
}

.contact-modal__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 9999px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-color);
    cursor: pointer;
    transition: background-color .3s ease, color .3s ease;
}

.contact-modal__close:hover {
    background: var(--text-color);
    color: #fff;
}