/* ========================================
   GLOBAL STYLES
   Base typography, utilities, layout
   ======================================== */

body {
    font-family: var(--font-body);
    font-weight: var(--fw-regular);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    letter-spacing: var(--tracking-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

/* ---- Selection ---- */
::selection {
    background-color: var(--color-accent);
    color: var(--color-white);
}

/* ---- Focus ---- */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

/* ---- Container ---- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--fw-medium);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    line-height: 1;
    padding: 1rem 1.75rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition:
        background-color var(--duration-fast) var(--ease-out),
        color var(--duration-fast) var(--ease-out),
        border-color var(--duration-fast) var(--ease-out),
        transform var(--duration-fast) var(--ease-out);
    white-space: nowrap;
    position: relative;
}

.btn:active {
    transform: scale(0.97);
}

.btn--primary {
    background-color: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}

.btn--primary:hover {
    background-color: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
}

.btn--secondary {
    background-color: transparent;
    color: var(--color-white);
    border-color: var(--border-light);
}

.btn--secondary:hover {
    border-color: var(--color-grey-300);
    color: var(--color-white);
}

.btn-arrow {
    transition: transform var(--duration-fast) var(--ease-out);
}

.btn:hover .btn-arrow {
    transform: translate(2px, -2px);
}

/* ---- Reveal animation base ---- */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity var(--duration-slow) var(--ease-out),
        transform var(--duration-slow) var(--ease-out);
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

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