/* === Reset === */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  background: var(--surface-page-light);
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background: var(--surface-page-light);
  background-image:
    radial-gradient(circle at 20% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(147, 51, 234, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(251, 188, 5, 0.03) 0%, transparent 60%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100dvh;
  letter-spacing: -0.005em;
  overflow-x: hidden;
}

body.app-auth {
  background: #f8fafc;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--text-link);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-default);
}

a:hover {
  color: var(--color-primary-700);
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  line-height: var(--leading-tight);
  font-weight: var(--font-bold);
  letter-spacing: -0.02em;
}

/* === Focus === */
:focus-visible {
  outline: 2px solid var(--color-primary-400);
  outline-offset: 2px;
}

/* === Background Mesh (soft floating blobs) === */
.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

body.app-auth .bg-mesh {
  display: none;
}

#app {
  position: relative;
  z-index: 1;
}

.bg-shape {
  position: absolute;
  border-radius: 50%;
  will-change: transform;
}

.bg-shape-1 {
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, rgba(59, 130, 246, 0.03) 38%, transparent 72%);
  filter: blur(80px);
  top: -15%;
  right: -10%;
  animation: float-1 18s ease-in-out infinite;
}

.bg-shape-2 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(147, 51, 234, 0.08) 0%, rgba(147, 51, 234, 0.02) 38%, transparent 72%);
  filter: blur(80px);
  bottom: -10%;
  left: -10%;
  animation: float-2 23s ease-in-out infinite;
}

.bg-shape-3 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(251, 188, 5, 0.08) 0%, rgba(251, 188, 5, 0.02) 40%, transparent 72%);
  filter: blur(80px);
  top: 40%;
  left: 35%;
  animation: float-3 20s ease-in-out infinite;
}

@keyframes float-1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(-60px, 40px) scale(1.08); }
  50% { transform: translate(-20px, 80px) scale(0.95); }
  75% { transform: translate(40px, -30px) scale(1.03); }
}

@keyframes float-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(50px, -50px) scale(1.1); }
  50% { transform: translate(80px, 20px) scale(0.92); }
  75% { transform: translate(-30px, 40px) scale(1.05); }
}

@keyframes float-3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(-40px, -50px) scale(1.12); }
  50% { transform: translate(50px, -20px) scale(0.88); }
  75% { transform: translate(30px, 40px) scale(1.06); }
}

/* === Entrance animations === */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in-scale {
  from {
    opacity: 0;
    transform: scale(0.92);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 16px rgba(59, 130, 246, 0.16); }
  50% { box-shadow: 0 0 26px rgba(59, 130, 246, 0.24), 0 0 40px rgba(147, 51, 234, 0.08); }
}

.material-symbols-outlined {
  font-variation-settings: "FILL" 0, "wght" 350, "GRAD" 0, "opsz" 20;
}

/* === Scrollbar (light glass feel) === */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  transition: background var(--duration-fast) var(--ease-default);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-300);
}

/* === Utilities === */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.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;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-sm { font-size: var(--text-sm); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-secondary { color: var(--text-secondary); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

.grid {
  display: grid;
  gap: var(--space-6);
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  line-height: var(--leading-normal);
  border-radius: var(--radius-2xl);
  transition: all var(--duration-normal) var(--ease-default);
  white-space: nowrap;
  position: relative;
}

.btn:active:not(:disabled) {
  transform: scale(0.95);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-primary-600);
  color: var(--text-inverse);
  border: none;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-500);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.5);
  color: var(--color-gray-700);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(255, 255, 255, 0.8);
  transform: translateY(-1px);
}

.btn-danger {
  background: var(--color-error);
  color: var(--text-inverse);
  border: none;
  box-shadow: 0 2px 12px rgba(248, 113, 113, 0.3);
}

.btn-danger:hover:not(:disabled) {
  box-shadow: 0 4px 20px rgba(248, 113, 113, 0.4);
  transform: translateY(-1px);
}

.btn-ghost {
  color: var(--color-gray-500);
}

.btn-ghost:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.5);
  color: var(--text-primary);
}

.btn-sm {
  padding: 0.35rem 0.85rem;
  font-size: var(--text-sm);
  gap: 0.3rem;
  border-radius: var(--radius-xl);
}

.btn-lg {
  padding: var(--space-3) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-2xl);
}

/* === Form elements === */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  padding: var(--space-3) var(--space-4);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-2xl);
  font-size: var(--text-sm);
  background: rgba(255, 255, 255, 0.4);
  transition: all var(--duration-fast) var(--ease-default);
  color: var(--text-primary);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-400);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);
  background: rgba(255, 255, 255, 0.6);
  border-color: transparent;
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
  border-radius: var(--radius-xl);
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-error);
}

/* === Hidden utility === */
[hidden] {
  display: none !important;
}