/* ========== UTILITY CLASSES - TAILWIND INSPIRED ========== */

/* ========== SPACING UTILITIES ========== */
.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; }
.p-16 { padding: 4rem; }

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

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

.m-1 { margin: 0.25rem; }
.m-2 { margin: 0.5rem; }
.m-3 { margin: 0.75rem; }
.m-4 { margin: 1rem; }
.m-6 { margin: 1.5rem; }
.m-8 { margin: 2rem; }

.mx-auto { margin-left: auto; margin-right: auto; }
.my-2 { margin-top: 0.5rem; margin-bottom: 0.5rem; }
.my-4 { margin-top: 1rem; margin-bottom: 1rem; }
.my-6 { margin-top: 1.5rem; margin-bottom: 1.5rem; }
.my-8 { margin-top: 2rem; margin-bottom: 2rem; }

/* ========== LAYOUT UTILITIES ========== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.block { display: block; }
.inline-block { display: inline-block; }
.hidden { display: none; }

.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.items-stretch { align-items: stretch; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }

/* ========== TYPOGRAPHY UTILITIES ========== */
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-5xl { font-size: 3rem; line-height: 1; }

.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; }

.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.leading-tight { line-height: 1.25; }
.leading-normal { line-height: 1.5; }
.leading-relaxed { line-height: 1.75; }
.leading-loose { line-height: 2; }

/* ========== COLOR UTILITIES ========== */
.text-primary { color: #333; }
.text-secondary { color: #666; }
.text-muted { color: #999; }
.text-white { color: white; }
.text-accent { color: #4ecdc4; }
.text-danger { color: #ff6b6b; }
.text-info { color: #45b7d1; }

.bg-primary { background-color: #333; }
.bg-secondary { background-color: #666; }
.bg-white { background-color: white; }
.bg-accent { background-color: #4ecdc4; }
.bg-danger { background-color: #ff6b6b; }
.bg-info { background-color: #45b7d1; }

.bg-gradient-primary {
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
}

.bg-gradient-secondary {
    background: linear-gradient(45deg, #4ecdc4, #45b7d1);
}

/* ========== BORDER & RADIUS UTILITIES ========== */
.border { border: 1px solid #e1e8ed; }
.border-2 { border: 2px solid #e1e8ed; }
.border-0 { border: none; }

.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; }

.rounded-t-lg { border-top-left-radius: 0.5rem; border-top-right-radius: 0.5rem; }
.rounded-b-lg { border-bottom-left-radius: 0.5rem; border-bottom-right-radius: 0.5rem; }

/* ========== SHADOW UTILITIES ========== */
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow { box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06); }
.shadow-md { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); }

/* ========== TRANSITION & ANIMATION UTILITIES ========== */
.transition { transition: all 0.3s ease; }
.transition-fast { transition: all 0.15s ease; }
.transition-slow { transition: all 0.5s ease; }

.transform { transform: translateZ(0); }
.scale-95 { transform: scale(0.95); }
.scale-100 { transform: scale(1); }
.scale-105 { transform: scale(1.05); }
.scale-110 { transform: scale(1.1); }

.rotate-0 { transform: rotate(0deg); }
.rotate-90 { transform: rotate(90deg); }
.rotate-180 { transform: rotate(180deg); }

.translate-y-0 { transform: translateY(0); }
.translate-y-1 { transform: translateY(-0.25rem); }
.translate-y-2 { transform: translateY(-0.5rem); }
.translate-y-4 { transform: translateY(-1rem); }

/* ========== POSITION UTILITIES ========== */
.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; }

.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; }

/* ========== RESPONSIVE UTILITIES ========== */
@media (max-width: 640px) {
    .sm\:hidden { display: none; }
    .sm\:block { display: block; }
    .sm\:flex { display: flex; }
    .sm\:text-sm { font-size: 0.875rem; line-height: 1.25rem; }
    .sm\:p-4 { padding: 1rem; }
    .sm\:gap-2 { gap: 0.5rem; }
}

@media (min-width: 641px) and (max-width: 768px) {
    .md\:hidden { display: none; }
    .md\:block { display: block; }
    .md\:flex { display: flex; }
    .md\:text-base { font-size: 1rem; line-height: 1.5rem; }
    .md\:p-6 { padding: 1.5rem; }
    .md\:gap-4 { gap: 1rem; }
}

@media (min-width: 769px) {
    .lg\:hidden { display: none; }
    .lg\:block { display: block; }
    .lg\:flex { display: flex; }
    .lg\:text-lg { font-size: 1.125rem; line-height: 1.75rem; }
    .lg\:p-8 { padding: 2rem; }
    .lg\:gap-6 { gap: 1.5rem; }
}

/* ========== ACCESSIBILITY UTILITIES ========== */
.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;
}

.focus\:outline-none:focus { outline: none; }
.focus\:ring-2:focus { box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.3); }
.focus\:ring-accent:focus { box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.5); }

/* ========== HOVER & INTERACTION STATES ========== */
.hover\:scale-105:hover { transform: scale(1.05); }
.hover\:scale-110:hover { transform: scale(1.1); }
.hover\:translate-y-1:hover { transform: translateY(-0.25rem); }
.hover\:translate-y-2:hover { transform: translateY(-0.5rem); }

.hover\:shadow-lg:hover { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }
.hover\:shadow-xl:hover { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); }

.hover\:bg-accent:hover { background-color: #4ecdc4; }
.hover\:bg-danger:hover { background-color: #ff6b6b; }
.hover\:text-white:hover { color: white; }
.hover\:text-accent:hover { color: #4ecdc4; }

/* ========== BACKDROP & BLUR EFFECTS ========== */
.backdrop-blur-sm { backdrop-filter: blur(4px); }
.backdrop-blur { backdrop-filter: blur(8px); }
.backdrop-blur-md { backdrop-filter: blur(12px); }
.backdrop-blur-lg { backdrop-filter: blur(16px); }
.backdrop-blur-xl { backdrop-filter: blur(24px); }

.bg-white\/90 { background-color: rgba(255, 255, 255, 0.9); }
.bg-white\/95 { background-color: rgba(255, 255, 255, 0.95); }
.bg-white\/98 { background-color: rgba(255, 255, 255, 0.98); }

.bg-black\/10 { background-color: rgba(0, 0, 0, 0.1); }
.bg-black\/20 { background-color: rgba(0, 0, 0, 0.2); }
.bg-black\/30 { background-color: rgba(0, 0, 0, 0.3); }

/* ========== OVERFLOW UTILITIES ========== */
.overflow-hidden { overflow: hidden; }
.overflow-visible { overflow: visible; }
.overflow-scroll { overflow: scroll; }
.overflow-auto { overflow: auto; }

.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-hidden { overflow-y: hidden; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

/* ========== CURSOR UTILITIES ========== */
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }
.cursor-not-allowed { cursor: not-allowed; }

/* ========== SELECT UTILITIES ========== */
.select-none { user-select: none; }
.select-text { user-select: text; }
.select-all { user-select: all; }