/* =================================
   BUTTONS COMPONENT
   Всі типи кнопок: primary, secondary, call button
   БЕЗ .mobile-touch-target (він в mobile-optimizations.css)
   ================================= */

/* ===== BASE BUTTON STYLES ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: var(--font-base);
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal) var(--easing-default);
    text-align: center;
    background: transparent;
    min-width: 140px;
    border-radius: 0;
    text-transform: lowercase;
    letter-spacing: 0.5px;
}

/* ===== BUTTON VARIANTS ===== */

/* Primary button - червона кнопка */
.btn-primary {
    background: var(--color-red);
    color: var(--color-white);
    border-color: var(--color-red);
}

.btn-primary:hover {
    background: var(--color-white);
    color: var(--color-red);
    border-color: var(--color-red);
    transform: translateY(-2px);
    box-shadow: var(--shadow-red-md);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Secondary button - прозора з червоною рамкою */
.btn-secondary {
    background: transparent;
    color: var(--color-red);
    border-color: var(--color-red);
}

.btn-secondary:hover {
    background: var(--color-red);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-red-md);
}

.btn-secondary:active {
    transform: translateY(0);
}

/* ===== FIXED CALL BUTTON ===== */
.call-button {
    position: fixed;
    bottom: var(--space-xs);
    left: var(--space-xs);
    z-index: var(--z-fixed-buttons, 999);
    background: var(--color-red);
    color: var(--color-white);
    padding: 15px 20px;
    border: none;
    font-weight: 600;
    font-size: var(--font-base);
    cursor: pointer;
    transition: all var(--transition-normal) var(--easing-default);
    text-transform: lowercase;
    letter-spacing: 0.5px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
}

.call-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: var(--color-black);
}

.call-button:active {
    transform: translateY(0);
}

/* ===== BUTTON SIZES ===== */

.btn-small {
    padding: 8px 16px;
    font-size: 12px;
    min-width: 100px;
}

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
    min-width: 180px;
}

/* ===== BUTTON STATES ===== */

.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid currentColor;
    border-radius: 50%;
    border-top-color: transparent;
    animation: video-loading-spin 0.6s linear infinite;
}

/* ===== BUTTON GROUPS ===== */

.btn-group {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.btn-group-vertical {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

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

@media (max-width: 767px) {
    .btn {
        min-width: 120px;
        padding: 12px 20px;
        font-size: 14px;
    }

    .btn-large {
        padding: 14px 24px;
        font-size: 15px;
        min-width: 140px;
    }

    .call-button {
        bottom: var(--space-xs);
        left: var(--space-xs);
        right: var(--space-xs);
        width: calc(100% - var(--space-xs) * 2);
        text-align: center;
        padding: 14px 20px;
        /* Враховуємо safe area для iPhone */
        bottom: max(env(safe-area-inset-bottom), var(--space-xs));
    }

    .btn-group {
        flex-direction: column;
    }

    .btn-group .btn {
        width: 100%;
    }
}

/* ===== iOS SAFARI ОПТИМІЗАЦІЇ ===== */

@supports (-webkit-touch-callout: none) {
    .call-button {
        /* Додатковий відступ для iOS Safari */
        bottom: max(env(safe-area-inset-bottom, 20px), 20px);
    }
}