/**
 * MekryPro – Enhanced button styles
 * Modern buttons with hover effects, loading states, and better accessibility
 * @author Kaido Mägi
 * @copyright 2026
 */

/* Base – common reset and shape */
body.mekry-app .mekry-btn,
body.mekry-app .mekry-btn-primary,
body.mekry-app .mekry-btn-secondary,
body.mekry-app .mekry-btn-danger,
body.mekry-app .mekry-btn-success,
body.mekry-app .mekry-btn-ghost,
body.mekry-auth-page .mekry-btn,
body.mekry-auth-page .mekry-btn-primary,
body.mekry-auth-page .mekry-btn-secondary,
body.mekry-auth-page .mekry-btn-danger,
body.mekry-auth-page .mekry-btn-success {
    box-sizing: border-box;
    font-family: var(--mekry-font);
    padding: 0.625rem 1.25rem;
    font-size: var(--text-sm);
    font-weight: 500;
    border-radius: var(--radius-xs);
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    min-height: 44px; /* Touch-friendly */
    white-space: nowrap;
    user-select: none;
}

/* Focus styles for better accessibility */
body.mekry-app .mekry-btn:focus-visible,
body.mekry-app .mekry-btn-primary:focus-visible,
body.mekry-app .mekry-btn-secondary:focus-visible,
body.mekry-app .mekry-btn-danger:focus-visible,
body.mekry-app .mekry-btn-success:focus-visible,
body.mekry-app .mekry-btn-ghost:focus-visible,
body.mekry-auth-page .mekry-btn:focus-visible,
body.mekry-auth-page .mekry-btn-primary:focus-visible,
body.mekry-auth-page .mekry-btn-secondary:focus-visible,
body.mekry-auth-page .mekry-btn-danger:focus-visible,
body.mekry-auth-page .mekry-btn-success:focus-visible {
    outline: 2px solid var(--accent-main);
    outline-offset: 2px;
}

/* Primary – MekryPro outline (app + auth): accent gradient, mint border/text */
body.mekry-app .mekry-btn-primary,
body.mekry-auth-page .mekry-btn-primary {
    background: var(--accent-button-bg);
    color: var(--accent-toggle-text);
    border: 1px solid var(--accent-border);
    box-shadow: var(--shadow-button);
}

body.mekry-app .mekry-btn-primary:hover:not(:disabled),
body.mekry-auth-page .mekry-btn-primary:hover:not(:disabled) {
    background: linear-gradient(180deg, rgba(54, 211, 165, 0.22), rgba(54, 211, 165, 0.14));
    border-color: var(--accent-hover);
    color: var(--accent-toggle-text);
    box-shadow: var(--shadow-button-hover);
    transform: translateY(-1px);
}

body.mekry-app .mekry-btn-primary:active:not(:disabled),
body.mekry-auth-page .mekry-btn-primary:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: var(--shadow-button);
}

body.mekry-app .mekry-btn-primary:disabled,
body.mekry-auth-page .mekry-btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Secondary – subtle outline button */
body.mekry-app .mekry-btn-secondary,
body.mekry-auth-page .mekry-btn-secondary {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-default);
    box-shadow: none;
}

body.mekry-app .mekry-btn-secondary:hover:not(:disabled),
body.mekry-auth-page .mekry-btn-secondary:hover:not(:disabled) {
    background: var(--panel-bg-2);
    border-color: var(--border-strong);
    color: var(--text-main);
    box-shadow: var(--shadow-button);
}

body.mekry-app .mekry-btn-secondary:active:not(:disabled),
body.mekry-auth-page .mekry-btn-secondary:active:not(:disabled) {
    transform: translateY(0);
}

body.mekry-app .mekry-btn-secondary:disabled,
body.mekry-auth-page .mekry-btn-secondary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Danger – for destructive actions */
body.mekry-app .mekry-btn-danger,
body.mekry-auth-page .mekry-btn-danger {
    background: var(--danger-soft);
    color: var(--danger-main);
    border: 1px solid var(--danger-border);
    box-shadow: none;
}

body.mekry-app .mekry-btn-danger:hover:not(:disabled),
body.mekry-auth-page .mekry-btn-danger:hover:not(:disabled) {
    background: rgba(232, 92, 92, 0.18);
    border-color: var(--danger-main);
    color: var(--danger-main);
    box-shadow: 0 2px 8px rgba(232, 92, 92, 0.2);
    transform: translateY(-1px);
}

body.mekry-app .mekry-btn-danger:active:not(:disabled),
body.mekry-auth-page .mekry-btn-danger:active:not(:disabled) {
    transform: translateY(0);
}

body.mekry-app .mekry-btn-danger:disabled,
body.mekry-auth-page .mekry-btn-danger:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Success – for positive actions */
body.mekry-app .mekry-btn-success,
body.mekry-auth-page .mekry-btn-success {
    background: rgba(16, 185, 129, 0.12);
    color: var(--status-success);
    border: 1px solid rgba(16, 185, 129, 0.24);
    box-shadow: none;
}

body.mekry-app .mekry-btn-success:hover:not(:disabled),
body.mekry-auth-page .mekry-btn-success:hover:not(:disabled) {
    background: rgba(16, 185, 129, 0.18);
    border-color: var(--status-success);
    color: var(--status-success);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.2);
    transform: translateY(-1px);
}

body.mekry-app .mekry-btn-success:active:not(:disabled),
body.mekry-auth-page .mekry-btn-success:active:not(:disabled) {
    transform: translateY(0);
}

body.mekry-app .mekry-btn-success:disabled,
body.mekry-auth-page .mekry-btn-success:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Ghost – minimal button */
body.mekry-app .mekry-btn-ghost,
body.mekry-auth-page .mekry-btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid transparent;
    box-shadow: none;
}

body.mekry-app .mekry-btn-ghost:hover:not(:disabled),
body.mekry-auth-page .mekry-btn-ghost:hover:not(:disabled) {
    background: var(--panel-bg-2);
    color: var(--text-main);
    border-color: var(--border-light);
}

body.mekry-app .mekry-btn-ghost:active:not(:disabled),
body.mekry-auth-page .mekry-btn-ghost:active:not(:disabled) {
    transform: translateY(0);
}

body.mekry-app .mekry-btn-ghost:disabled,
body.mekry-auth-page .mekry-btn-ghost:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Button sizes */
body.mekry-app .mekry-btn-sm,
body.mekry-auth-page .mekry-btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: var(--text-xs);
    min-height: 32px;
}

body.mekry-app .mekry-btn-lg,
body.mekry-auth-page .mekry-btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: var(--text-base);
    min-height: 52px;
}

body.mekry-app .mekry-btn-xl,
body.mekry-auth-page .mekry-btn-xl {
    padding: 1rem 2rem;
    font-size: var(--text-lg);
    min-height: 60px;
}

/* Button groups */
.mekry-btn-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.mekry-btn-group .mekry-btn {
    flex: 1;
}

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

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

/* Loading state for buttons */
.mekry-btn-loading {
    color: transparent !important;
    pointer-events: none;
    position: relative;
}

.mekry-btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: mekry-spin 0.8s linear infinite;
}

/* Icon buttons */
.mekry-btn-icon {
    padding: 0.625rem;
    min-width: 44px;
    min-height: 44px;
}

.mekry-btn-icon-sm {
    padding: 0.375rem;
    min-width: 32px;
    min-height: 32px;
}

.mekry-btn-icon-lg {
    padding: 0.75rem;
    min-width: 52px;
    min-height: 52px;
}

/* Full width buttons */
.mekry-btn-full {
    width: 100%;
}

/* Ripple effect (optional enhancement) */
.mekry-btn-ripple {
    position: relative;
    overflow: hidden;
}

.mekry-btn-ripple::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.mekry-btn-ripple:active::before {
    width: 200px;
    height: 200px;
}

/* Responsive buttons */
@media (max-width: 768px) {
    body.mekry-app .mekry-btn,
    body.mekry-app .mekry-btn-primary,
    body.mekry-app .mekry-btn-secondary,
    body.mekry-app .mekry-btn-danger,
    body.mekry-app .mekry-btn-success,
    body.mekry-app .mekry-btn-ghost,
    body.mekry-auth-page .mekry-btn,
    body.mekry-auth-page .mekry-btn-primary,
    body.mekry-auth-page .mekry-btn-secondary,
    body.mekry-auth-page .mekry-btn-danger,
    body.mekry-auth-page .mekry-btn-success {
        padding: 0.75rem 1rem;
        font-size: var(--text-base);
        min-height: 48px;
    }
    
    .mekry-btn-group {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .mekry-btn-group .mekry-btn {
        width: 100%;
    }
}

/* Ghost – subtle overlay */
body.mekry-app .mekry-btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border-color: var(--border-default);
    padding: 0.5rem 1.25rem;
    font-size: 0.9375rem;
}
body.mekry-app .mekry-btn-ghost:hover:not(:disabled) {
    background: var(--list-hover);
    color: var(--text-main);
    border-color: var(--border-strong);
}

/* Small */
body.mekry-app .mekry-btn-sm {
    padding: 0.35rem 0.85rem;
    font-size: 0.8125rem;
}

/* Secondary – outline gray */
body.mekry-app .mekry-btn-secondary,
body.mekry-auth-page .mekry-btn-secondary {
    background: transparent;
    color: var(--text-muted);
    border-color: var(--border-default);
}
body.mekry-app .mekry-btn-secondary:hover:not(:disabled),
body.mekry-auth-page .mekry-btn-secondary:hover:not(:disabled) {
    background: var(--list-hover);
    color: var(--text-main);
    border-color: var(--border-strong);
}
body.mekry-app .mekry-btn-secondary:disabled,
body.mekry-auth-page .mekry-btn-secondary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Danger – outline red */
body.mekry-app .mekry-btn-danger,
body.mekry-auth-page .mekry-btn-danger {
    background: transparent;
    border: 1px solid var(--danger-border);
    color: var(--danger-main);
}
body.mekry-app .mekry-btn-danger:hover,
body.mekry-auth-page .mekry-btn-danger:hover {
    background: var(--danger-soft);
    border-color: var(--danger-main);
    color: var(--danger-main);
}

/* Success – accent green */
body.mekry-app .mekry-btn-success,
body.mekry-auth-page .mekry-btn-success {
    background: var(--accent-soft);
    border: 1px solid var(--accent-border);
    color: var(--accent-main);
}
body.mekry-app .mekry-btn-success:hover,
body.mekry-auth-page .mekry-btn-success:hover {
    background: var(--accent-soft);
    border-color: var(--accent-hover);
    color: var(--accent-hover);
}