/* ============================================
   Component Library - URL Shortener Pro
   Reusable UI Components with Modern Design
   ============================================ */

/* ========== Loading Spinners ========== */

.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--primary-indigo);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.spinner-lg {
    width: 60px;
    height: 60px;
    border-width: 6px;
}

/* Gradient Spinner */
.spinner-gradient {
    background: conic-gradient(from 0deg, transparent, var(--primary-indigo));
    border: none;
    -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 4px), white 0);
    mask: radial-gradient(farthest-side, transparent calc(100% - 4px), white 0);
}

/* Dot Spinner */
.spinner-dots {
    display: inline-flex;
    gap: 8px;
}

.spinner-dots span {
    width: 10px;
    height: 10px;
    background: var(--primary-indigo);
    border-radius: 50%;
    animation: dotPulse 1.4s ease-in-out infinite;
}

.spinner-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.spinner-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

/* ========== Progress Bars ========== */

.progress-modern {
    height: 8px;
    background: var(--bg-elevated);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.progress-modern .progress-bar {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    transition: width var(--duration-500) ease-out;
    position: relative;
    overflow: hidden;
}

/* Animated shimmer effect */
.progress-modern .progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.3),
            transparent);
    animation: shimmer 2s infinite;
}

/* Gradient variants */
.progress-success .progress-bar {
    background: var(--success-gradient);
}

.progress-warning .progress-bar {
    background: var(--warning-gradient);
}

.progress-info .progress-bar {
    background: var(--info-gradient);
}

.progress-danger .progress-bar {
    background: var(--danger-gradient);
}

/* ========== Enhanced Alerts ========== */

.alert-modern {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    border: none;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.alert-modern::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
}

.alert-modern i {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.alert-modern-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-light);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-modern-success::before {
    background: var(--success-gradient);
}

.alert-modern-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-light);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.alert-modern-warning::before {
    background: var(--warning-gradient);
}

.alert-modern-info {
    background: rgba(14, 165, 233, 0.1);
    color: var(--info-light);
    border: 1px solid rgba(14, 165, 233, 0.2);
}

.alert-modern-info::before {
    background: var(--info-gradient);
}

.alert-modern-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-light);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-modern-danger::before {
    background: var(--danger-gradient);
}

/* ========== Skeleton Loaders ========== */

.skeleton {
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
}

.skeleton::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.05),
            transparent);
    animation: shimmer 2s infinite;
}

.skeleton-text {
    height: 1rem;
    margin-bottom: 0.5rem;
}

.skeleton-title {
    height: 1.5rem;
    width: 60%;
    margin-bottom: 1rem;
}

.skeleton-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

/* ========== Enhanced Badges ========== */

.badge-gradient {
    background: var(--primary-gradient);
    color: white;
    padding: 0.5em 1em;
    border-radius: var(--radius-full);
    font-weight: var(--font-semibold);
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.badge-gradient-success {
    background: var(--success-gradient);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.badge-gradient-warning {
    background: var(--warning-gradient);
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.badge-gradient-danger {
    background: var(--danger-gradient);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.badge-gradient-info {
    background: var(--info-gradient);
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

/* Animated pulse badge */
.badge-pulse {
    position: relative;
}

.badge-pulse::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: inherit;
    border-radius: inherit;
    opacity: 0.5;
    animation: pulse 2s ease-in-out infinite;
    z-index: -1;
}

/* ========== Toast Notifications ========== */

.toast-modern {
    background: var(--bg-glass-strong);
    backdrop-filter: blur(20px);
    border: var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    padding: var(--space-4);
    min-width: 300px;
}

.toast-modern .toast-header {
    background: transparent;
    border: none;
    padding-bottom: var(--space-2);
}

.toast-modern .toast-body {
    padding: 0;
    color: var(--text-secondary);
}

/* ========== Empty States ========== */

.empty-state {
    text-align: center;
    padding: var(--space-12) var(--space-4);
}

.empty-state-icon {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: var(--space-4);
    opacity: 0.3;
}

.empty-state-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.empty-state-description {
    color: var(--text-muted);
    margin-bottom: var(--space-6);
}

/* ========== Success Checkmark ========== */

.checkmark-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--success-gradient);
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.5);
    animation: scaleIn var(--duration-500) cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.checkmark-circle i {
    font-size: 2.5rem;
    color: white;
}

/* ========== Stat Cards Enhanced ========== */

.stat-card-modern {
    background: var(--bg-card);
    border: var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.stat-card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
}

.stat-card-modern:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.stat-card-modern .stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    margin-bottom: var(--space-3);
    font-size: 1.5rem;
    color: white;
}

.stat-card-modern .stat-value {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.stat-card-modern .stat-label {
    color: var(--text-muted);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========== Button Enhancements ========== */

/* Ripple effect container */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width var(--duration-500) ease, height var(--duration-500) ease;
}

.btn-ripple:active::after {
    width: 300px;
    height: 300px;
}

/* Glow button */
.btn-glow {
    position: relative;
    transition: all var(--transition-base);
}

.btn-glow:hover {
    box-shadow: 0 0 30px currentColor;
}

/* ========== Modal Enhancements ========== */

.modal-modern .modal-content {
    background: var(--bg-glass-strong);
    backdrop-filter: blur(20px);
    border: var(--glass-border);
    border-radius: var(--radius-2xl);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-modern .modal-header {
    border-bottom: var(--glass-border);
    padding: var(--space-6);
}

.modal-modern .modal-body {
    padding: var(--space-6);
}

.modal-modern .modal-footer {
    border-top: var(--glass-border);
    padding: var(--space-6);
}

/* ========== Light Mode Component Overrides ========== */

[data-theme="light"] .skeleton {
    background: #e2e8f0;
}

[data-theme="light"] .skeleton::after {
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.5),
            transparent);
}

[data-theme="light"] .alert-modern-success {
    background: rgba(16, 185, 129, 0.08);
    color: #059669;
}

[data-theme="light"] .alert-modern-warning {
    background: rgba(245, 158, 11, 0.08);
    color: #d97706;
}

[data-theme="light"] .alert-modern-danger {
    background: rgba(239, 68, 68, 0.08);
    color: #dc2626;
}

[data-theme="light"] .alert-modern-info {
    background: rgba(14, 165, 233, 0.08);
    color: #0284c7;
}

[data-theme="light"] .empty-state-icon {
    color: #94a3b8;
    opacity: 0.5;
}

[data-theme="light"] .toast-modern {
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .modal-modern .modal-content {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

/* Checkbox / Radio modern styling */
.form-check-input:checked {
    background-color: var(--primary-indigo);
    border-color: var(--primary-indigo);
}

.form-check-input:focus {
    border-color: var(--primary-indigo);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Form label styling */
.form-label {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}