/* =====================================================
   UTILITY CLASSES - Helper klase
   ===================================================== */

/* Display */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }
.d-grid { display: grid !important; }

/* Responsive Display */
@media (max-width: 575px) {
    .d-sm-none { display: none !important; }
    .d-sm-block { display: block !important; }
    .d-sm-flex { display: flex !important; }
}

@media (max-width: 767px) {
    .d-md-none { display: none !important; }
    .d-md-block { display: block !important; }
    .d-md-flex { display: flex !important; }
}

@media (max-width: 991px) {
    .d-lg-none { display: none !important; }
    .d-lg-block { display: block !important; }
    .d-lg-flex { display: flex !important; }
}

@media (min-width: 992px) {
    .d-desktop-none { display: none !important; }
}

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.static { position: static; }

/* Z-Index */
.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }
.z-auto { z-index: auto; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-scroll { overflow: scroll; }
.overflow-visible { overflow: visible; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-justify { text-align: justify; }

/* Text Transform */
.uppercase { text-transform: uppercase; }
.lowercase { text-transform: lowercase; }
.capitalize { text-transform: capitalize; }
.normal-case { text-transform: none; }

/* Font Weight */
.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }

/* Font Size */
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }
.text-5xl { font-size: 3rem; }

/* Line Height */
.leading-none { line-height: 1; }
.leading-tight { line-height: 1.25; }
.leading-snug { line-height: 1.375; }
.leading-normal { line-height: 1.5; }
.leading-relaxed { line-height: 1.625; }
.leading-loose { line-height: 2; }

/* Text Colors */
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--primary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-info { color: var(--info); }

/* Gradient Text */
.text-gradient {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 30%, #ffb347 60%, #ffd700 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Static Gradient Text (no animation) */
.text-gradient-static {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 50%, #ffd700 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Background Colors */
.bg-transparent { background-color: transparent; }
.bg-primary { background-color: var(--primary); }
.bg-secondary { background-color: var(--bg-secondary); }
.bg-accent { background: var(--gradient-primary); }
.bg-glass { 
    background: var(--glass-bg);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

/* Width */
.w-full { width: 100%; }
.w-screen { width: 100vw; }
.w-auto { width: auto; }
.w-fit { width: fit-content; }
.w-min { width: min-content; }
.w-max { width: max-content; }

/* Height */
.h-full { height: 100%; }
.h-screen { height: 100vh; }
.h-auto { height: auto; }
.h-fit { height: fit-content; }

/* Min/Max */
.min-h-screen { min-height: 100vh; }
.max-w-full { max-width: 100%; }
.max-h-full { max-height: 100%; }

/* Margin */
.m-0 { margin: 0; }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.my-auto { margin-top: auto; margin-bottom: auto; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-10 { margin-top: 2.5rem; }
.mt-12 { margin-top: 3rem; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }

/* Padding */
.p-0 { padding: 0; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-5 { padding: 1.25rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.p-10 { padding: 2.5rem; }
.p-12 { padding: 3rem; }

.px-0 { padding-left: 0; padding-right: 0; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }

.py-0 { padding-top: 0; padding-bottom: 0; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }

/* Border Radius */
.rounded-none { border-radius: 0; }
.rounded-sm { border-radius: var(--radius-sm, 6px); }
.rounded { border-radius: var(--radius-md, 10px); }
.rounded-lg { border-radius: var(--radius-lg, 14px); }
.rounded-xl { border-radius: var(--radius-xl, 20px); }
.rounded-2xl { border-radius: var(--radius-2xl, 28px); }
.rounded-full { border-radius: 9999px; }

/* Shadows */
.shadow-none { box-shadow: none; }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-glow { box-shadow: var(--shadow-glow); }

/* Opacity */
.opacity-0 { opacity: 0; }
.opacity-25 { opacity: 0.25; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }
.cursor-not-allowed { cursor: not-allowed; }
.cursor-wait { cursor: wait; }

/* Pointer Events */
.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }

/* User Select */
.select-none { -webkit-user-select: none; user-select: none; }
.select-text { -webkit-user-select: text; user-select: text; }
.select-all { -webkit-user-select: all; user-select: all; }

/* Visibility */
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Truncate Text */
.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Aspect Ratio */
.aspect-square { aspect-ratio: 1 / 1; }
.aspect-video { aspect-ratio: 16 / 9; }
.aspect-4-3 { aspect-ratio: 4 / 3; }

/* Object Fit */
.object-cover { object-fit: cover; }
.object-contain { object-fit: contain; }
.object-fill { object-fit: fill; }
.object-none { object-fit: none; }

/* Transitions */
.transition-none { transition: none; }
.transition-all { transition: all var(--transition-normal, 0.3s ease); }
.transition-transform { transition: transform var(--transition-normal, 0.3s ease); }
.transition-opacity { transition: opacity var(--transition-normal, 0.3s ease); }
.transition-colors { transition: color var(--transition-normal, 0.3s ease), background-color var(--transition-normal, 0.3s ease), border-color var(--transition-normal, 0.3s ease); }

/* Hover Effects */
.hover-lift:hover { transform: translateY(-4px); }
.hover-scale:hover { transform: scale(1.02); }
.hover-glow:hover { box-shadow: var(--shadow-glow); }
.hover-bright:hover { filter: brightness(1.1); }

/* Divider */
.divider {
    width: 100%;
    height: 1px;
    background: var(--glass-border);
    margin: 1.5rem 0;
}

.divider--gradient {
    background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge--primary {
    background: rgba(255, 107, 53, 0.15);
    color: var(--primary);
}

.badge--success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.badge--warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.badge--danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.badge--info {
    background: rgba(59, 130, 246, 0.15);
    color: var(--info);
}

/* Avatar */
.avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--text-primary);
    font-weight: 600;
    overflow: hidden;
}

.avatar--sm { width: 32px; height: 32px; font-size: 0.75rem; }
.avatar--md { width: 40px; height: 40px; font-size: 0.875rem; }
.avatar--lg { width: 48px; height: 48px; font-size: 1rem; }
.avatar--xl { width: 64px; height: 64px; font-size: 1.25rem; }

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Skeleton Loader */
.skeleton {
    background: linear-gradient(90deg, 
        rgba(255,255,255,0.05) 25%, 
        rgba(255,255,255,0.1) 50%, 
        rgba(255,255,255,0.05) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Loading Spinner */
.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--glass-border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner--sm { width: 16px; height: 16px; }
.spinner--lg { width: 32px; height: 32px; }
.spinner--xl { width: 48px; height: 48px; }

@keyframes spin {
    to { transform: rotate(360deg); }
}