/* ==========================================================================
   Buttons — shared component (Sprint 2 Faza C)
   Replaces .btn / .btn-primary / .btn-outline / .btn-outline-dark /
   .btn-outline-light / .btn-secondary / .btn-danger / .btn-sm / .btn-lg /
   .btn-block that used to live in app.css and per-page CSS files.

   Editorial defaults:
   - .btn         base reset, inline-flex, transition
   - .btn-primary terracotta filled (CTA)
   - .btn-outline ink border, transparent fill (secondary)
   - .btn-ghost   text-only with terracotta underline
   - .btn-danger  red for destructive actions
   Sizes: --sm (compact), --lg (hero CTA), --block (full width)
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 11px 22px;
    border-radius: 4px;
    border: none;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    line-height: 1.2;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}

.btn i { font-size: 0.95em; }

/* ----- Variants -------------------------------------------------------- */

.btn-primary {
    background: var(--terracotta);
    color: var(--warm-white);
}

.btn-primary:hover {
    background: var(--terracotta-d);
    filter: none;
    color: var(--warm-white);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--ink);
    color: var(--ink);
}

.btn-outline:hover {
    background: var(--ink);
    color: var(--cream);
}

/* Light outline — for use on dark backgrounds (hero overlays, ink slabs) */
.btn-outline-light {
    background: transparent;
    border: 1px solid var(--cream);
    color: var(--cream);
}

.btn-outline-light:hover {
    background: var(--cream);
    color: var(--ink);
}

/* Dark outline — alias of .btn-outline kept for back-compat in templates */
.btn-outline-dark {
    background: transparent;
    border: 1px solid var(--ink);
    color: var(--ink);
}

.btn-outline-dark:hover {
    background: var(--ink);
    color: var(--cream);
}

/* Outline primary (terracotta) — for soft CTA on cream backgrounds */
.btn-outline-primary {
    background: transparent;
    border: 1px solid var(--terracotta);
    color: var(--terracotta);
}

.btn-outline-primary:hover {
    background: var(--terracotta);
    color: var(--warm-white);
}

/* Ghost / text link — no border, just terracotta underline */
.btn-ghost {
    padding: 8px 0;
    background: transparent;
    color: var(--terracotta);
    border: none;
    border-bottom: 1px solid currentColor;
    border-radius: 0;
}

.btn-ghost:hover {
    color: var(--terracotta-d);
}

/* Secondary — neutral, used on filled CTA contexts */
.btn-secondary {
    background: var(--paper);
    color: var(--ink);
    border: 1px solid var(--hairline-strong);
}

.btn-secondary:hover {
    background: var(--ink);
    color: var(--cream);
    border-color: var(--ink);
}

/* Destructive */
.btn-danger {
    background: #B85044;
    color: var(--cream);
}

.btn-danger:hover {
    background: #8E3D34;
    color: var(--cream);
}

.btn-outline-danger {
    background: transparent;
    border: 1px solid var(--hairline-strong);
    color: var(--taupe);
}

.btn-outline-danger:hover {
    background: #B85044;
    color: var(--cream);
    border-color: #B85044;
}

/* ----- Sizes ----------------------------------------------------------- */
.btn-sm {
    padding: 8px 16px;
    font-size: 0.78rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 0.95rem;
    letter-spacing: 0.1em;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Caps-tracked variant — for primary CTAs that want uppercase */
.btn-caps {
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 0.78rem;
}

/* Disabled state — works on every variant */
.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}