/* ==========================================================================
   TheraLink PH — Unified Button System
   One canonical button style used across landing, auth, and dashboard.
   Existing class names (.btn-tl-primary, .btn-login, .btn-back) are aliased
   to these canonical styles so no markup changes are needed.
   ========================================================================== */

/* --- Canonical buttons --- */
.tl-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: .65rem 1.4rem;
    font-family: var(--font-body);
    font-size: .9rem;
    font-weight: 600;
    line-height: 1.2;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
    min-height: 44px;
    text-decoration: none;
    white-space: nowrap;
}

.tl-btn-primary {
    background: var(--coral);
    color: #fff;
    box-shadow: 0 4px 16px rgba(239, 120, 96, .25);
}
.tl-btn-primary:hover,
.tl-btn-primary:active {
    background: var(--coral-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(239, 120, 96, .35);
}
.tl-btn-primary:focus-visible {
    outline: 3px solid var(--periwinkle);
    outline-offset: 2px;
}

.tl-btn-outline {
    background: transparent;
    color: var(--coral);
    border: 1.5px solid var(--coral);
}
.tl-btn-outline:hover,
.tl-btn-outline:active {
    background: var(--coral);
    color: #fff;
    transform: translateY(-1px);
}
.tl-btn-outline:focus-visible {
    outline: 3px solid var(--periwinkle);
    outline-offset: 2px;
}

/* --- Auth page buttons: full-width, uppercase, slightly taller --- */
.tl-btn-block {
    width: 100%;
    padding: .95rem;
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    min-height: 48px;
    margin-top: .4rem;
}

/* --- Backward-compat aliases: existing class names map to canonical styles --- */

/* Landing page */
.btn-tl-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
    padding: .65rem 1.4rem;
    font-size: .9rem;
    border: none;
    cursor: pointer;
    background: var(--coral);
    color: var(--ink);
}
.btn-tl-primary:hover {
    background: var(--coral-hover);
    color: var(--ink);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px -4px rgba(239, 120, 96, .45);
}
.btn-tl-primary:focus-visible {
    outline: 3px solid var(--periwinkle);
    outline-offset: 2px;
}

.btn-tl-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: transform var(--transition-fast), background var(--transition-fast);
    padding: .65rem 1.4rem;
    font-size: .9rem;
    border: none;
    cursor: pointer;
    background: transparent;
    color: var(--ink);
    border: 1.5px solid var(--line);
}
.btn-tl-outline:hover {
    border-color: var(--ink);
    transform: translateY(-2px);
}
.btn-tl-outline:focus-visible {
    outline: 3px solid var(--periwinkle);
    outline-offset: 2px;
}

/* Auth pages */
.btn-login {
    width: 100%;
    padding: .95rem;
    background: var(--coral);
    color: #fff;
    font-family: var(--font-body);
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    box-shadow: 0 4px 16px rgba(239, 120, 96, .25);
    margin-top: .4rem;
    min-height: 48px;
}
.btn-login:hover,
.btn-login:active {
    background: var(--coral-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(239, 120, 96, .35);
}
.btn-login:focus-visible {
    outline: 3px solid var(--periwinkle);
    outline-offset: 2px;
}

.btn-back {
    width: 100%;
    padding: .95rem;
    background: transparent;
    color: var(--coral);
    font-family: var(--font-body);
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    border: 1.5px solid var(--coral);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
    margin-top: .8rem;
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.btn-back:hover,
.btn-back:active {
    background: var(--coral);
    color: #fff;
}
.btn-back:focus-visible {
    outline: 3px solid var(--periwinkle);
    outline-offset: 2px;
}

/* Dashboard Bootstrap overrides (already in app_layout.php, restated here
   so the full button system lives in one file for reference) */
.btn-primary {
    background: var(--coral);
    border-color: var(--coral);
    border-radius: var(--radius-sm);
}
.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background: var(--coral-hover) !important;
    border-color: var(--coral-hover) !important;
}
.btn-outline-primary {
    color: var(--coral);
    border-color: var(--coral);
    border-radius: var(--radius-sm);
}
.btn-outline-primary:hover {
    background: var(--coral);
    border-color: var(--coral);
    color: #fff;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .tl-btn, .tl-btn-primary, .tl-btn-outline,
    .btn-tl-primary, .btn-tl-outline,
    .btn-login, .btn-back {
        transition: none !important;
        transform: none !important;
    }
}