/* Design Utilities - Buttons & Components */

/* ===================================
   BUTTON SYSTEM
   =================================== */

/* Base Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 500; /* LOCKED: Always medium */
  line-height: 1.25; /* LOCKED */
  letter-spacing: 0; /* LOCKED */
  text-align: center;
  text-transform: none; /* LOCKED: Sentence case */
  white-space: nowrap;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: 2px solid transparent;
  /* border-radius controlled by utility classes (rounded-md, rounded-lg, etc.) */
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn:focus {
  outline: 2px solid var(--clr-neutral-light);
  outline-offset: 4px;
}

.btn:focus:not(:focus-visible) {
  outline: none;
}

/* Button Sizes - LOCKED TO 3 SIZES ONLY */
.btn-sm {
  padding: 8px 16px; /* LOCKED */
  font-size: 14px; /* LOCKED */
  min-height: 36px; /* LOCKED */
}

.btn-md {
  padding: 12px 24px; /* LOCKED */
  font-size: 16px; /* LOCKED */
  min-height: 44px; /* LOCKED */
}

.btn-lg {
  padding: 16px 32px; /* LOCKED */
  font-size: 16px; /* LOCKED */
  min-height: 52px; /* LOCKED */
}

/* DEPRECATED: Do not use */
.btn-xs,
.btn-xl {
  display: none !important; /* Force removal of deprecated sizes */
}

/* Filled Button Styles */
.btn-filled-primary {
  background-color: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
}

.btn-filled-secondary {
  background-color: var(--clr-secondary);
  color: var(--clr-black);
  border-color: var(--clr-secondary);
}

.btn-filled-tertiary {
  background-color: var(--clr-tertiary);
  color: var(--clr-white);
  border-color: var(--clr-tertiary);
}

.btn-filled-quaternary {
  background-color: var(--clr-quaternary);
  color: var(--clr-white);
  border-color: var(--clr-quaternary);
}

/* Accent Color Filled Buttons */
.btn-filled-accent-1 {
  background-color: var(--clr-accent-1);
  color: var(--clr-white);
  border-color: var(--clr-accent-1);
}

.btn-filled-accent-2 {
  background-color: var(--clr-accent-2);
  color: var(--clr-black);
  border-color: var(--clr-accent-2);
}

.btn-filled-accent-3 {
  background-color: var(--clr-accent-3);
  color: var(--clr-white);
  border-color: var(--clr-accent-3);
}

.btn-filled-accent-4 {
  background-color: var(--clr-accent-4);
  color: var(--clr-white);
  border-color: var(--clr-accent-4);
}

.btn-filled-accent-5 {
  background-color: var(--clr-accent-5);
  color: var(--clr-white);
  border-color: var(--clr-accent-5);
}

.btn-filled-accent-6 {
  background-color: var(--clr-accent-6);
  color: var(--clr-white);
  border-color: var(--clr-accent-6);
}

.btn-filled-accent-7 {
  background-color: var(--clr-accent-7);
  color: var(--clr-white);
  border-color: var(--clr-accent-7);
}

.btn-filled-success {
  background-color: var(--clr-success);
  color: var(--clr-white);
  border-color: var(--clr-success);
}

.btn-filled-warning {
  background-color: var(--clr-warning);
  color: var(--clr-white);
  border-color: var(--clr-warning);
}

.btn-filled-error {
  background-color: var(--clr-error);
  color: var(--clr-white);
  border-color: var(--clr-error);
}

.btn-filled-info {
  background-color: var(--clr-info);
  color: var(--clr-white);
  border-color: var(--clr-info);
}

/* Neutral Filled Buttons */
.btn-filled-neutral {
  background-color: var(--clr-neutral);
  color: var(--clr-white);
  border-color: var(--clr-neutral);
}

.btn-filled-neutral-light {
  background-color: var(--clr-neutral-light);
  color: var(--clr-black);
  border-color: var(--clr-neutral-light);
}

.btn-filled-neutral-dark {
  background-color: var(--clr-neutral-dark);
  color: var(--clr-white);
  border-color: var(--clr-neutral-dark);
}

.btn-filled-neutral-medium {
  background-color: var(--clr-neutral-medium);
  color: var(--clr-white);
  border-color: var(--clr-neutral-medium);
}

.btn-filled-neutral-lighter {
  background-color: var(--clr-neutral-lighter);
  color: var(--clr-black);
  border-color: var(--clr-neutral-lighter);
}

.btn-filled-black {
  background-color: var(--clr-black);
  color: var(--clr-white);
  border-color: var(--clr-black);
}

.btn-filled-white {
  background-color: var(--clr-white);
  color: var(--clr-black);
  border-color: var(--clr-white);
}

/* Outline Button Styles */
.btn-outline-primary {
  background-color: transparent;
  color: var(--clr-primary);
  border-color: var(--clr-primary);
}

.btn-outline-primary:hover {
  background-color: var(--clr-primary);
  color: var(--clr-white);
}

.btn-outline-secondary {
  background-color: transparent;
  color: var(--clr-secondary);
  border-color: var(--clr-secondary);
}

.btn-outline-secondary:hover {
  background-color: var(--clr-secondary);
  color: var(--clr-black);
}

.btn-outline-tertiary {
  background-color: transparent;
  color: var(--clr-tertiary);
  border-color: var(--clr-tertiary);
}

.btn-outline-tertiary:hover {
  background-color: var(--clr-tertiary);
  color: var(--clr-white);
}

.btn-outline-quaternary {
  background-color: transparent;
  color: var(--clr-quaternary);
  border-color: var(--clr-quaternary);
}

.btn-outline-quaternary:hover {
  background-color: var(--clr-quaternary);
  color: var(--clr-white);
}

/* Accent Color Outline Buttons */
.btn-outline-accent-1 {
  background-color: transparent;
  color: var(--clr-accent-1);
  border-color: var(--clr-accent-1);
}

.btn-outline-accent-1:hover {
  background-color: var(--clr-accent-1);
  color: var(--clr-white);
}

.btn-outline-accent-2 {
  background-color: transparent;
  color: var(--clr-accent-2);
  border-color: var(--clr-accent-2);
}

.btn-outline-accent-2:hover {
  background-color: var(--clr-accent-2);
  color: var(--clr-black);
}

.btn-outline-accent-3 {
  background-color: transparent;
  color: var(--clr-accent-3);
  border-color: var(--clr-accent-3);
}

.btn-outline-accent-3:hover {
  background-color: var(--clr-accent-3);
  color: var(--clr-white);
}

.btn-outline-accent-4 {
  background-color: transparent;
  color: var(--clr-accent-4);
  border-color: var(--clr-accent-4);
}

.btn-outline-accent-4:hover {
  background-color: var(--clr-accent-4);
  color: var(--clr-white);
}

.btn-outline-accent-5 {
  background-color: transparent;
  color: var(--clr-accent-5);
  border-color: var(--clr-accent-5);
}

.btn-outline-accent-5:hover {
  background-color: var(--clr-accent-5);
  color: var(--clr-white);
}

.btn-outline-accent-6 {
  background-color: transparent;
  color: var(--clr-accent-6);
  border-color: var(--clr-accent-6);
}

.btn-outline-accent-6:hover {
  background-color: var(--clr-accent-6);
  color: var(--clr-white);
}

.btn-outline-accent-7 {
  background-color: transparent;
  color: var(--clr-accent-7);
  border-color: var(--clr-accent-7);
}

.btn-outline-accent-7:hover {
  background-color: var(--clr-accent-7);
  color: var(--clr-white);
}

.btn-outline-success {
  background-color: transparent;
  color: var(--clr-success);
  border-color: var(--clr-success);
}

.btn-outline-success:hover {
  background-color: var(--clr-success);
  color: var(--clr-white);
}

.btn-outline-warning {
  background-color: transparent;
  color: var(--clr-warning);
  border-color: var(--clr-warning);
}

.btn-outline-warning:hover {
  background-color: var(--clr-warning);
  color: var(--clr-white);
}

.btn-outline-error {
  background-color: transparent;
  color: var(--clr-error);
  border-color: var(--clr-error);
}

.btn-outline-error:hover {
  background-color: var(--clr-error);
  color: var(--clr-white);
}

.btn-outline-info {
  background-color: transparent;
  color: var(--clr-info);
  border-color: var(--clr-info);
}

.btn-outline-info:hover {
  background-color: var(--clr-info);
  color: var(--clr-white);
}

/* Neutral Outline Buttons */
.btn-outline-neutral {
  background-color: transparent;
  color: var(--clr-neutral);
  border-color: var(--clr-neutral);
}

.btn-outline-neutral:hover {
  background-color: var(--clr-neutral);
  color: var(--clr-white);
}

.btn-outline-neutral-light {
  background-color: transparent;
  color: var(--clr-neutral-light);
  border-color: var(--clr-neutral-light);
}

.btn-outline-neutral-light:hover {
  background-color: var(--clr-neutral-light);
  color: var(--clr-black);
}

.btn-outline-neutral-dark {
  background-color: transparent;
  color: var(--clr-neutral-dark);
  border-color: var(--clr-neutral-dark);
}

.btn-outline-neutral-dark:hover {
  background-color: var(--clr-neutral-dark);
  color: var(--clr-white);
}

.btn-outline-neutral-medium {
  background-color: transparent;
  color: var(--clr-neutral-medium);
  border-color: var(--clr-neutral-medium);
}

.btn-outline-neutral-medium:hover {
  background-color: var(--clr-neutral-medium);
  color: var(--clr-white);
}

.btn-outline-neutral-lighter {
  background-color: transparent;
  color: var(--clr-neutral-lighter);
  border-color: var(--clr-neutral-lighter);
}

.btn-outline-neutral-lighter:hover {
  background-color: var(--clr-neutral-lighter);
  color: var(--clr-black);
}

.btn-outline-black {
  background-color: transparent;
  color: var(--clr-black);
  border-color: var(--clr-black);
}

.btn-outline-black:hover {
  background-color: var(--clr-black);
  color: var(--clr-white);
}

.btn-outline-white {
  background-color: transparent;
  color: var(--clr-white);
  border-color: var(--clr-white);
}

.btn-outline-white:hover {
  background-color: var(--clr-white);
  color: var(--clr-black);
}

/* Ghost Button Styles */
.btn-ghost,
.btn-ghost-primary,
.btn-ghost-secondary,
.btn-ghost-tertiary,
.btn-ghost-quaternary,
.btn-ghost-accent-1,
.btn-ghost-accent-2,
.btn-ghost-accent-3,
.btn-ghost-accent-4,
.btn-ghost-accent-5,
.btn-ghost-accent-6,
.btn-ghost-accent-7,
.btn-ghost-success,
.btn-ghost-warning,
.btn-ghost-error,
.btn-ghost-info,
.btn-ghost-neutral,
.btn-ghost-neutral-light,
.btn-ghost-neutral-dark,
.btn-ghost-neutral-medium,
.btn-ghost-neutral-lighter,
.btn-ghost-black,
.btn-ghost-white {
  background-color: transparent;
  border-color: transparent;
}

.btn-ghost-primary { color: var(--clr-primary); }
.btn-ghost-secondary { color: var(--clr-secondary); }
.btn-ghost-tertiary { color: var(--clr-tertiary); }
.btn-ghost-quaternary { color: var(--clr-quaternary); }
.btn-ghost-accent-1 { color: var(--clr-accent-1); }
.btn-ghost-accent-2 { color: var(--clr-accent-2); }
.btn-ghost-accent-3 { color: var(--clr-accent-3); }
.btn-ghost-accent-4 { color: var(--clr-accent-4); }
.btn-ghost-accent-5 { color: var(--clr-accent-5); }
.btn-ghost-accent-6 { color: var(--clr-accent-6); }
.btn-ghost-accent-7 { color: var(--clr-accent-7); }
.btn-ghost-success { color: var(--clr-success); }
.btn-ghost-warning { color: var(--clr-warning); }
.btn-ghost-error { color: var(--clr-error); }
.btn-ghost-info { color: var(--clr-info); }
.btn-ghost-neutral { color: var(--clr-neutral); }
.btn-ghost-neutral-light { color: var(--clr-neutral-light); }
.btn-ghost-neutral-dark { color: var(--clr-neutral-dark); }
.btn-ghost-neutral-medium { color: var(--clr-neutral-medium); }
.btn-ghost-neutral-lighter { color: var(--clr-neutral-lighter); }
.btn-ghost-black { color: var(--clr-black); }
.btn-ghost-white { color: var(--clr-white); }
.btn-ghost { color: currentColor; }

.btn-ghost:hover,
.btn-ghost-primary:hover,
.btn-ghost-secondary:hover,
.btn-ghost-tertiary:hover,
.btn-ghost-quaternary:hover,
.btn-ghost-accent-1:hover,
.btn-ghost-accent-2:hover,
.btn-ghost-accent-3:hover,
.btn-ghost-accent-4:hover,
.btn-ghost-accent-5:hover,
.btn-ghost-accent-6:hover,
.btn-ghost-accent-7:hover,
.btn-ghost-success:hover,
.btn-ghost-warning:hover,
.btn-ghost-error:hover,
.btn-ghost-info:hover,
.btn-ghost-neutral:hover,
.btn-ghost-neutral-light:hover,
.btn-ghost-neutral-dark:hover,
.btn-ghost-neutral-medium:hover,
.btn-ghost-neutral-lighter:hover,
.btn-ghost-black:hover,
.btn-ghost-white:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

/* ===================================
   IMAGE UTILITIES
   =================================== */

img {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.object-cover { object-fit: cover; }
.object-contain { object-fit: contain; }

/* ===================================
   BADGE COMPONENT
   =================================== */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-base);
  white-space: nowrap;
}

.badge-primary {
  background-color: var(--clr-primary);
  color: var(--clr-white);
}

.badge-secondary {
  background-color: var(--clr-secondary);
  color: var(--clr-black);
}

.badge-success {
  background-color: var(--clr-success);
  color: var(--clr-white);
}

.badge-warning {
  background-color: var(--clr-warning);
  color: var(--clr-white);
}

.badge-error {
  background-color: var(--clr-error);
  color: var(--clr-white);
}

/* ===================================
   CARD COMPONENT
   =================================== */

.card {
  background-color: var(--clr-white);
  border-radius: var(--radius-lg);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: all 0.3s ease;
}

.card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transform: translateY(-4px);
}

/* ===================================
   INPUT STYLES
   =================================== */

.input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-size-base);
  border: 2px solid var(--clr-neutral);
  border-radius: var(--radius-base);
  transition: border-color 0.3s ease;
}

.input:focus {
  outline: none;
  border-color: var(--clr-primary);
}

.input::placeholder {
  color: var(--clr-neutral-dark);
  opacity: 0.6;
}

/* ===================================
   FORM STYLES
   =================================== */

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 500;
  font-size: var(--font-size-sm);
  color: var(--clr-neutral-dark);
}

/* ===================================
   TRANSITION UTILITIES
   =================================== */

.transition-all {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.transition-transform {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.transition-opacity {
  transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===================================
   HOVER EFFECTS
   =================================== */

.hover\:opacity-90:hover {
  opacity: 0.9;
}

.hover\:scale-105:hover {
  transform: scale(1.05);
}

/* ===================================
   RESPONSIVE UTILITIES
   =================================== */

@media (min-width: 768px) {
  .md\:flex { display: flex; }
  .md\:hidden { display: none; }
  .md\:block { display: block; }
}

@media (min-width: 1024px) {
  .lg\:flex { display: flex; }
  .lg\:hidden { display: none; }
  .lg\:block { display: block; }
}