/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 640px) {
    .container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .container {
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

/* Layout */
.page-container {
    min-height: calc(100vh - 64px - 80px); /* subtract header and footer heights */
    padding: 2rem 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 1.5rem;
}

.col-span-1 { grid-column: span 1 / span 1; }
.col-span-2 { grid-column: span 2 / span 2; }
.col-span-3 { grid-column: span 3 / span 3; }
.col-span-4 { grid-column: span 4 / span 4; }
.col-span-5 { grid-column: span 5 / span 5; }
.col-span-6 { grid-column: span 6 / span 6; }
.col-span-7 { grid-column: span 7 / span 7; }
.col-span-8 { grid-column: span 8 / span 8; }
.col-span-9 { grid-column: span 9 / span 9; }
.col-span-10 { grid-column: span 10 / span 10; }
.col-span-11 { grid-column: span 11 / span 11; }
.col-span-12 { grid-column: span 12 / span 12; }

@media (min-width: 640px) {
    .sm\:col-span-1 { grid-column: span 1 / span 1; }
    .sm\:col-span-2 { grid-column: span 2 / span 2; }
    .sm\:col-span-3 { grid-column: span 3 / span 3; }
    .sm\:col-span-4 { grid-column: span 4 / span 4; }
    .sm\:col-span-5 { grid-column: span 5 / span 5; }
    .sm\:col-span-6 { grid-column: span 6 / span 6; }
    .sm\:col-span-7 { grid-column: span 7 / span 7; }
    .sm\:col-span-8 { grid-column: span 8 / span 8; }
    .sm\:col-span-9 { grid-column: span 9 / span 9; }
    .sm\:col-span-10 { grid-column: span 10 / span 10; }
    .sm\:col-span-11 { grid-column: span 11 / span 11; }
    .sm\:col-span-12 { grid-column: span 12 / span 12; }
}

@media (min-width: 768px) {
    .md\:col-span-1 { grid-column: span 1 / span 1; }
    .md\:col-span-2 { grid-column: span 2 / span 2; }
    .md\:col-span-3 { grid-column: span 3 / span 3; }
    .md\:col-span-4 { grid-column: span 4 / span 4; }
    .md\:col-span-5 { grid-column: span 5 / span 5; }
    .md\:col-span-6 { grid-column: span 6 / span 6; }
    .md\:col-span-7 { grid-column: span 7 / span 7; }
    .md\:col-span-8 { grid-column: span 8 / span 8; }
    .md\:col-span-9 { grid-column: span 9 / span 9; }
    .md\:col-span-10 { grid-column: span 10 / span 10; }
    .md\:col-span-11 { grid-column: span 11 / span 11; }
    .md\:col-span-12 { grid-column: span 12 / span 12; }
}

@media (min-width: 1024px) {
    .lg\:col-span-1 { grid-column: span 1 / span 1; }
    .lg\:col-span-2 { grid-column: span 2 / span 2; }
    .lg\:col-span-3 { grid-column: span 3 / span 3; }
    .lg\:col-span-4 { grid-column: span 4 / span 4; }
    .lg\:col-span-5 { grid-column: span 5 / span 5; }
    .lg\:col-span-6 { grid-column: span 6 / span 6; }
    .lg\:col-span-7 { grid-column: span 7 / span 7; }
    .lg\:col-span-8 { grid-column: span 8 / span 8; }
    .lg\:col-span-9 { grid-column: span 9 / span 9; }
    .lg\:col-span-10 { grid-column: span 10 / span 10; }
    .lg\:col-span-11 { grid-column: span 11 / span 11; }
    .lg\:col-span-12 { grid-column: span 12 / span 12; }
}

/* Flex Utilities */
.flex {
    display: flex;
}

.inline-flex {
    display: inline-flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-end {
    justify-content: flex-end;
}

.flex-1 {
    flex: 1 1 0%;
}

.flex-shrink-0 {
    flex-shrink: 0;
}

.flex-grow {
    flex-grow: 1;
}

.gap-1 {
    gap: 0.25rem;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-3 {
    gap: 0.75rem;
}

.gap-4 {
    gap: 1rem;
}

.gap-5 {
    gap: 1.25rem;
}

.gap-6 {
    gap: 1.5rem;
}

/* Spacing Utilities */
.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-1 { padding-left: 0.25rem; padding-right: 0.25rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.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-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-5 { padding-top: 1.25rem; padding-bottom: 1.25rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }
.py-10 { padding-top: 2.5rem; padding-bottom: 2.5rem; }
.py-12 { padding-top: 3rem; padding-bottom: 3rem; }

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

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

.m-0 { margin: 0; }
.m-1 { margin: 0.25rem; }
.m-2 { margin: 0.5rem; }
.m-3 { margin: 0.75rem; }
.m-4 { margin: 1rem; }
.m-5 { margin: 1.25rem; }
.m-6 { margin: 1.5rem; }
.m-8 { margin: 2rem; }
.m-10 { margin: 2.5rem; }
.m-12 { margin: 3rem; }

.mx-0 { margin-left: 0; margin-right: 0; }
.mx-1 { margin-left: 0.25rem; margin-right: 0.25rem; }
.mx-2 { margin-left: 0.5rem; margin-right: 0.5rem; }
.mx-3 { margin-left: 0.75rem; margin-right: 0.75rem; }
.mx-4 { margin-left: 1rem; margin-right: 1rem; }
.mx-5 { margin-left: 1.25rem; margin-right: 1.25rem; }
.mx-6 { margin-left: 1.5rem; margin-right: 1.5rem; }
.mx-8 { margin-left: 2rem; margin-right: 2rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

.my-0 { margin-top: 0; margin-bottom: 0; }
.my-1 { margin-top: 0.25rem; margin-bottom: 0.25rem; }
.my-2 { margin-top: 0.5rem; margin-bottom: 0.5rem; }
.my-3 { margin-top: 0.75rem; margin-bottom: 0.75rem; }
.my-4 { margin-top: 1rem; margin-bottom: 1rem; }
.my-5 { margin-top: 1.25rem; margin-bottom: 1.25rem; }
.my-6 { margin-top: 1.5rem; margin-bottom: 1.5rem; }
.my-8 { margin-top: 2rem; margin-bottom: 2rem; }
.my-10 { margin-top: 2.5rem; margin-bottom: 2.5rem; }
.my-12 { margin-top: 3rem; margin-bottom: 3rem; }

.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-5 { margin-top: 1.25rem; }
.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-5 { margin-bottom: 1.25rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }

/* Border Radius */
.rounded-none { border-radius: 0; }
.rounded-sm { border-radius: 0.125rem; }
.rounded { border-radius: 0.25rem; }
.rounded-md { border-radius: 0.375rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-3xl { border-radius: 1.5rem; }
.rounded-full { border-radius: 9999px; }

/* Border */
.border { border-width: 1px; }
.border-0 { border-width: 0; }
.border-2 { border-width: 2px; }
.border-4 { border-width: 4px; }
.border-t { border-top-width: 1px; }
.border-r { border-right-width: 1px; }
.border-b { border-bottom-width: 1px; }
.border-l { border-left-width: 1px; }

.border-solid { border-style: solid; }
.border-dashed { border-style: dashed; }
.border-dotted { border-style: dotted; }

.border-primary { border-color: var(--primary-color); }
.border-secondary { border-color: var(--secondary-color); }
.border-success { border-color: var(--success); }
.border-error { border-color: var(--error); }
.border-warning { border-color: var(--warning); }
.border-neutral-200 { border-color: var(--neutral-200); }
.border-neutral-300 { border-color: var(--neutral-300); }

/* Background Colors */
.bg-white { background-color: white; }
.bg-primary { background-color: var(--primary-color); }
.bg-primary-light { background-color: var(--primary-light); }
.bg-secondary { background-color: var(--secondary-color); }
.bg-secondary-light { background-color: var(--secondary-light); }
.bg-success { background-color: var(--success); }
.bg-success-light { background-color: var(--success-light); }
.bg-error { background-color: var(--error); }
.bg-error-light { background-color: var(--error-light); }
.bg-warning { background-color: var(--warning); }
.bg-warning-light { background-color: var(--warning-light); }
.bg-neutral-50 { background-color: var(--neutral-50); }
.bg-neutral-100 { background-color: var(--neutral-100); }
.bg-neutral-200 { background-color: var(--neutral-200); }

/* Text Colors */
.text-white { color: white; }
.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.text-warning { color: var(--warning); }
.text-neutral-500 { color: var(--neutral-500); }
.text-neutral-600 { color: var(--neutral-600); }
.text-neutral-700 { color: var(--neutral-700); }
.text-neutral-800 { color: var(--neutral-800); }
.text-neutral-900 { color: var(--neutral-900); }

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

/* Display */
.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }
.hidden { display: none; }

/* Width/Height */
.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

/* Positioning */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }

/* Transitions */
.transition { transition-property: all; transition-timing-function: ease; transition-duration: 0.3s; }
.transition-transform { transition-property: transform; transition-timing-function: ease; transition-duration: 0.3s; }
.transition-colors { transition-property: background-color, border-color, color, fill, stroke; transition-timing-function: ease; transition-duration: 0.3s; }
.transition-opacity { transition-property: opacity; transition-timing-function: ease; transition-duration: 0.3s; }
.transition-shadow { transition-property: box-shadow; transition-timing-function: ease; transition-duration: 0.3s; }

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

/* Focus Outline */
.focus-outline {
    outline: 2px solid transparent;
    outline-offset: 2px;
}

.focus-outline:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 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; }

/* Animations */
.animate-fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

.animate-slide-up {
    animation: slideUp 0.3s ease-in-out;
}

.animate-slide-down {
    animation: slideDown 0.3s ease-in-out;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes fadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

@keyframes slideUp {
    0% { transform: translateY(10px); opacity: 0; }
    100% { transform: translateY(0); opacity: 1; }
}

@keyframes slideDown {
    0% { transform: translateY(-10px); opacity: 0; }
    100% { transform: translateY(0); opacity: 1; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

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

/* Line clamp (limit to N lines) */
.line-clamp-1 {
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

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