/* css/components/buttons.css - Button component styles for Nodaar Web Portal */

/* Base Button */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1.25;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    padding: 0.625rem 1.125rem;
    cursor: pointer;
    transition: all var(--trans-fast);
    user-select: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn:active:not(:disabled) {
    transform: translateY(1px);
}

.btn:disabled,
.btn.disabled {
    opacity: 0.55;
    cursor: not-allowed;
    pointer-events: none;
}

.btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* ==========================================================================
   BUTTON SIZES
   ========================================================================== */
.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: var(--text-xs);
    border-radius: var(--radius-sm);
    gap: 0.375rem;
}
.btn-sm svg {
    width: 15px;
    height: 15px;
}

.btn-md {
    padding: 0.625rem 1.125rem;
    font-size: var(--text-sm);
}

.btn-lg {
    padding: 0.8125rem 1.5rem;
    font-size: var(--text-base);
    border-radius: var(--radius-lg);
    gap: 0.625rem;
}
.btn-lg svg {
    width: 20px;
    height: 20px;
}

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

/* ==========================================================================
   BUTTON VARIANTS
   ========================================================================== */
/* Primary (Nodaar Orange) */
.btn-primary {
    background-color: var(--color-primary-500);
    color: #FFFFFF;
    box-shadow: 0 2px 4px rgba(255, 136, 0, 0.2), 0 1px 2px rgba(255, 136, 0, 0.15);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-600);
    box-shadow: 0 4px 12px rgba(255, 136, 0, 0.35);
    transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
    background-color: var(--color-primary-700);
    transform: translateY(0);
}

/* Secondary (Subtle bordered surface) */
.btn-secondary {
    background-color: var(--surface-card);
    border-color: var(--border-default);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--surface-hover);
    border-color: var(--border-medium);
    color: var(--text-primary);
}

.btn-secondary:active:not(:disabled) {
    background-color: var(--surface-active);
}

/* Ghost (Clean borderless) */
.btn-ghost {
    background-color: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--surface-hover);
    color: var(--text-primary);
}

.btn-ghost:active:not(:disabled) {
    background-color: var(--surface-active);
}

/* Danger (Red) */
.btn-danger {
    background-color: var(--color-error);
    color: #FFFFFF;
    box-shadow: 0 2px 4px rgba(239, 68, 68, 0.2);
}

.btn-danger:hover:not(:disabled) {
    background-color: var(--color-error-dark);
    box-shadow: 0 4px 10px rgba(239, 68, 68, 0.35);
    transform: translateY(-1px);
}

.btn-danger-outline {
    background-color: transparent;
    border-color: var(--color-error);
    color: var(--color-error);
}

.btn-danger-outline:hover:not(:disabled) {
    background-color: var(--color-error-light);
}

/* Success (Green) */
.btn-success {
    background-color: var(--color-success);
    color: #FFFFFF;
}

.btn-success:hover:not(:disabled) {
    background-color: var(--color-success-dark);
}

/* Icon-only Button */
.btn-icon {
    padding: 0.625rem;
    border-radius: var(--radius-md);
    background-color: transparent;
    border: 1px solid var(--border-default);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover:not(:disabled) {
    background-color: var(--surface-hover);
    color: var(--text-primary);
    border-color: var(--border-medium);
}

.btn-icon.btn-sm {
    padding: 0.375rem;
}

.btn-icon.btn-lg {
    padding: 0.75rem;
}

/* ==========================================================================
   LOADING STATE
   ========================================================================== */
.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    top: calc(50% - 9px);
    left: calc(50% - 9px);
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #FFFFFF;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.btn-secondary.btn-loading::after,
.btn-ghost.btn-loading::after {
    border: 2px solid rgba(15, 23, 42, 0.15);
    border-top-color: var(--color-primary-500);
}

html[data-theme="dark"] .btn-secondary.btn-loading::after,
html[data-theme="dark"] .btn-ghost.btn-loading::after {
    border-color: rgba(255, 255, 255, 0.2);
    border-top-color: var(--color-primary-500);
}