/* ==============================================
   AHMED PAPER DECORATIONS
   Buttons - All Button Styles
   ============================================== */


/* ==========================================
   BASE BUTTON
   ========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-primary);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    line-height: 1;
    letter-spacing: var(--ls-wide);
    text-transform: uppercase;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    white-space: nowrap;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.25);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.btn i {
    font-size: 14px;
}


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

/* Primary - Gold */
.btn-primary {
    background: var(--gradient-gold);
    color: var(--color-black);
    border-color: transparent;
}

.btn-primary:hover {
    background: var(--color-gold-dark);
    color: var(--color-black);
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold-md);
}

/* Secondary - Black */
.btn-secondary {
    background: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
}

.btn-secondary:hover {
    background: var(--color-gold);
    color: var(--color-black);
    border-color: var(--color-gold);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Outline Gold */
.btn-outline-gold {
    background: transparent;
    color: var(--color-gold-dark);
    border-color: var(--color-gold);
}

.btn-outline-gold:hover {
    background: var(--gradient-gold);
    color: var(--color-black);
    transform: translateY(-2px);
}

/* Outline Black */
.btn-outline-black {
    background: transparent;
    color: var(--color-black);
    border-color: var(--color-black);
}

.btn-outline-black:hover {
    background: var(--color-black);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* Outline White */
.btn-outline-white {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.btn-outline-white:hover {
    background: var(--color-white);
    color: var(--color-black);
}

/* WhatsApp Button */
.btn-whatsapp {
    background: var(--color-whatsapp);
    color: var(--color-white);
    border-color: var(--color-whatsapp);
}

.btn-whatsapp:hover {
    background: var(--color-whatsapp-dark);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(37, 211, 102, 0.3);
}

/* Light Button */
.btn-light {
    background: var(--color-white);
    color: var(--color-black);
    border-color: var(--color-gray-200);
}

.btn-light:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gold);
}


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

.btn-xs {
    padding: var(--space-2) var(--space-3);
    font-size: var(--fs-xs);
    letter-spacing: var(--ls-normal);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--fs-xs);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--fs-base);
}

.btn-xl {
    padding: var(--space-5) var(--space-10);
    font-size: var(--fs-md);
}


/* ==========================================
   BUTTON SHAPES
   ========================================== */

.btn-rounded {
    border-radius: var(--radius-full);
}

.btn-square {
    border-radius: 0;
}

.btn-block {
    width: 100%;
}


/* ==========================================
   ICON ONLY BUTTON
   ========================================== */

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.btn-icon.btn-sm {
    width: 36px;
    height: 36px;
}

.btn-icon.btn-lg {
    width: 52px;
    height: 52px;
}


/* ==========================================
   SHIMMER EFFECT
   ========================================== */

.btn-shimmer {
    position: relative;
    overflow: hidden;
}

.btn-shimmer::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    transition: left 0.6s;
}

.btn-shimmer:hover::before {
    left: 100%;
}


/* ==========================================
   ADD TO CART BUTTON (Special)
   ========================================== */

.btn-add-to-cart {
    background: var(--gradient-dark);
    color: var(--color-white);
    border: 2px solid var(--color-black);
    padding: var(--space-3) var(--space-6);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    letter-spacing: var(--ls-wide);
    text-transform: uppercase;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    position: relative;
    overflow: hidden;
}

.btn-add-to-cart::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-gold);
    transition: left 0.4s var(--transition-smooth);
    z-index: -1;
}

.btn-add-to-cart:hover::before {
    left: 0;
}

.btn-add-to-cart:hover {
    color: var(--color-black);
    border-color: var(--color-gold);
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold-md);
}

.btn-add-to-cart i {
    transition: transform 0.3s;
}

.btn-add-to-cart:hover i {
    transform: translateX(3px);
}

/* Cart Button Added State */
.btn-add-to-cart.is-added {
    background: var(--color-success);
    border-color: var(--color-success);
    color: var(--color-white);
}

.btn-add-to-cart.is-loading {
    pointer-events: none;
    opacity: 0.7;
}


/* ==========================================
   BUY NOW BUTTON
   ========================================== */

.btn-buy-now {
    background: var(--gradient-gold);
    color: var(--color-black);
    padding: var(--space-3) var(--space-6);
    font-size: var(--fs-sm);
    font-weight: var(--fw-bold);
    letter-spacing: var(--ls-wide);
    text-transform: uppercase;
    border: 2px solid var(--color-gold);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.btn-buy-now:hover {
    background: var(--color-black);
    color: var(--color-gold);
    border-color: var(--color-black);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}


/* ==========================================
   QUANTITY SELECTOR
   ========================================== */

.quantity-selector {
    display: inline-flex;
    align-items: center;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-white);
}

.quantity-btn {
    width: 40px;
    height: 40px;
    background: var(--color-white);
    border: none;
    color: var(--color-black);
    font-size: var(--fs-base);
    font-weight: var(--fw-bold);
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.quantity-btn:hover {
    background: var(--color-gold);
    color: var(--color-black);
}

.quantity-input {
    width: 50px;
    height: 40px;
    border: none;
    text-align: center;
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--color-black);
    background: var(--color-white);
    -moz-appearance: textfield;
}

.quantity-input::-webkit-outer-spin-button,
.quantity-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.quantity-input:focus {
    outline: none;
    background: var(--color-gold-pale);
}


/* ==========================================
   BUTTON GROUP
   ========================================== */

.btn-group {
    display: inline-flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.btn-group-vertical {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}


/* ==========================================
   LOADING SPINNER IN BUTTON
   ========================================== */

.btn-loader {
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}


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

@media (max-width: 767px) {
    .btn {
        padding: var(--space-3) var(--space-5);
        font-size: var(--fs-xs);
    }
    
    .btn-lg {
        padding: var(--space-3) var(--space-6);
        font-size: var(--fs-sm);
    }
    
    .btn-xl {
        padding: var(--space-4) var(--space-8);
        font-size: var(--fs-base);
    }
    
    .quantity-btn {
        width: 36px;
        height: 36px;
    }
    
    .quantity-input {
        width: 45px;
        height: 36px;
    }
}

@media (max-width: 575px) {
    .btn {
        padding: var(--space-2) var(--space-4);
    }
    
    .btn-icon {
        width: 40px;
        height: 40px;
    }
}