/* ==========================================================================
   BASE.CSS - Reset, Typography & Utilities
   Osteopata - Gestionale Studio Medico
   ========================================================================== */

/* ── Google Fonts ──────────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  min-height: 100vh;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

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

img {
  height: auto;
}

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

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

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

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

ul,
ol {
  list-style: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

hr {
  border: none;
  height: 1px;
  background: var(--border-color);
}

fieldset {
  border: none;
}

legend {
  padding: 0;
}

[hidden] {
  display: none !important;
}

/* ==========================================================================
   SELECTION & SCROLLBAR
   ========================================================================== */
::selection {
  background-color: rgba(var(--color-primary-rgb), 0.3);
  color: var(--text-primary);
}

::-moz-selection {
  background-color: rgba(var(--color-primary-rgb), 0.3);
  color: var(--text-primary);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
  background-clip: content-box;
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

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

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

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--text-primary);
  letter-spacing: var(--letter-spacing-tight);
}

h1 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
}

p {
  margin-bottom: var(--space-4);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

p:last-child {
  margin-bottom: 0;
}

small,
.text-sm {
  font-size: var(--font-size-sm);
}

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

.text-base {
  font-size: var(--font-size-base);
}

.text-md {
  font-size: var(--font-size-md);
}

.text-lg {
  font-size: var(--font-size-lg);
}

.text-xl {
  font-size: var(--font-size-xl);
}

.text-2xl {
  font-size: var(--font-size-2xl);
}

.text-3xl {
  font-size: var(--font-size-3xl);
}

strong, .font-bold {
  font-weight: var(--font-weight-bold);
}

.font-semibold {
  font-weight: var(--font-weight-semibold);
}

.font-medium {
  font-weight: var(--font-weight-medium);
}

.font-normal {
  font-weight: var(--font-weight-normal);
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 0.15em 0.4em;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  color: var(--color-primary-light);
}

/* ==========================================================================
   TEXT UTILITIES
   ========================================================================== */
.text-center   { text-align: center; }
.text-left     { text-align: left; }
.text-right    { text-align: right; }

.text-primary   { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted     { color: var(--text-muted) !important; }
.text-white     { color: #fff !important; }
.text-success   { color: var(--color-success) !important; }
.text-warning   { color: var(--color-warning) !important; }
.text-danger    { color: var(--color-danger) !important; }
.text-info      { color: var(--color-info) !important; }
.text-teal      { color: var(--color-primary) !important; }

.text-uppercase { text-transform: uppercase; letter-spacing: var(--letter-spacing-wider); }
.text-capitalize { text-transform: capitalize; }
.text-truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ==========================================================================
   SPACING UTILITIES
   ========================================================================== */
/* Margin top */
.mt-0  { margin-top: 0 !important; }
.mt-1  { margin-top: var(--space-1) !important; }
.mt-2  { margin-top: var(--space-2) !important; }
.mt-3  { margin-top: var(--space-3) !important; }
.mt-4  { margin-top: var(--space-4) !important; }
.mt-5  { margin-top: var(--space-5) !important; }
.mt-6  { margin-top: var(--space-6) !important; }
.mt-7  { margin-top: var(--space-7) !important; }
.mt-8  { margin-top: var(--space-8) !important; }

/* Margin bottom */
.mb-0  { margin-bottom: 0 !important; }
.mb-1  { margin-bottom: var(--space-1) !important; }
.mb-2  { margin-bottom: var(--space-2) !important; }
.mb-3  { margin-bottom: var(--space-3) !important; }
.mb-4  { margin-bottom: var(--space-4) !important; }
.mb-5  { margin-bottom: var(--space-5) !important; }
.mb-6  { margin-bottom: var(--space-6) !important; }
.mb-7  { margin-bottom: var(--space-7) !important; }
.mb-8  { margin-bottom: var(--space-8) !important; }

/* Margin left */
.ml-0  { margin-left: 0 !important; }
.ml-1  { margin-left: var(--space-1) !important; }
.ml-2  { margin-left: var(--space-2) !important; }
.ml-3  { margin-left: var(--space-3) !important; }
.ml-4  { margin-left: var(--space-4) !important; }
.ml-auto { margin-left: auto !important; }

/* Margin right */
.mr-0  { margin-right: 0 !important; }
.mr-1  { margin-right: var(--space-1) !important; }
.mr-2  { margin-right: var(--space-2) !important; }
.mr-3  { margin-right: var(--space-3) !important; }
.mr-4  { margin-right: var(--space-4) !important; }
.mr-auto { margin-right: auto !important; }

/* Margin x/y */
.mx-auto { margin-left: auto !important; margin-right: auto !important; }
.my-1  { margin-top: var(--space-1) !important; margin-bottom: var(--space-1) !important; }
.my-2  { margin-top: var(--space-2) !important; margin-bottom: var(--space-2) !important; }
.my-3  { margin-top: var(--space-3) !important; margin-bottom: var(--space-3) !important; }
.my-4  { margin-top: var(--space-4) !important; margin-bottom: var(--space-4) !important; }

/* Padding */
.p-0   { padding: 0 !important; }
.p-1   { padding: var(--space-1) !important; }
.p-2   { padding: var(--space-2) !important; }
.p-3   { padding: var(--space-3) !important; }
.p-4   { padding: var(--space-4) !important; }
.p-5   { padding: var(--space-5) !important; }
.p-6   { padding: var(--space-6) !important; }

.px-1  { padding-left: var(--space-1) !important; padding-right: var(--space-1) !important; }
.px-2  { padding-left: var(--space-2) !important; padding-right: var(--space-2) !important; }
.px-3  { padding-left: var(--space-3) !important; padding-right: var(--space-3) !important; }
.px-4  { padding-left: var(--space-4) !important; padding-right: var(--space-4) !important; }
.px-5  { padding-left: var(--space-5) !important; padding-right: var(--space-5) !important; }
.px-6  { padding-left: var(--space-6) !important; padding-right: var(--space-6) !important; }

.py-1  { padding-top: var(--space-1) !important; padding-bottom: var(--space-1) !important; }
.py-2  { padding-top: var(--space-2) !important; padding-bottom: var(--space-2) !important; }
.py-3  { padding-top: var(--space-3) !important; padding-bottom: var(--space-3) !important; }
.py-4  { padding-top: var(--space-4) !important; padding-bottom: var(--space-4) !important; }
.py-5  { padding-top: var(--space-5) !important; padding-bottom: var(--space-5) !important; }
.py-6  { padding-top: var(--space-6) !important; padding-bottom: var(--space-6) !important; }

.pt-1  { padding-top: var(--space-1) !important; }
.pt-2  { padding-top: var(--space-2) !important; }
.pt-3  { padding-top: var(--space-3) !important; }
.pt-4  { padding-top: var(--space-4) !important; }

.pb-1  { padding-bottom: var(--space-1) !important; }
.pb-2  { padding-bottom: var(--space-2) !important; }
.pb-3  { padding-bottom: var(--space-3) !important; }
.pb-4  { padding-bottom: var(--space-4) !important; }

/* ==========================================================================
   FLEXBOX UTILITIES
   ========================================================================== */
.flex          { display: flex !important; }
.inline-flex   { display: inline-flex !important; }
.flex-col      { flex-direction: column !important; }
.flex-row      { flex-direction: row !important; }
.flex-wrap     { flex-wrap: wrap !important; }
.flex-nowrap   { flex-wrap: nowrap !important; }
.flex-1        { flex: 1 1 0% !important; }
.flex-auto     { flex: 1 1 auto !important; }
.flex-none     { flex: none !important; }
.flex-grow     { flex-grow: 1 !important; }
.flex-shrink-0 { flex-shrink: 0 !important; }

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

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

.self-start    { align-self: flex-start !important; }
.self-center   { align-self: center !important; }
.self-end      { align-self: flex-end !important; }
.self-stretch  { align-self: stretch !important; }

.flex-between  { display: flex; align-items: center; justify-content: space-between; }
.flex-center   { display: flex; align-items: center; justify-content: center; }

/* Gap */
.gap-0   { gap: 0 !important; }
.gap-1   { gap: var(--space-1) !important; }
.gap-2   { gap: var(--space-2) !important; }
.gap-3   { gap: var(--space-3) !important; }
.gap-4   { gap: var(--space-4) !important; }
.gap-5   { gap: var(--space-5) !important; }
.gap-6   { gap: var(--space-6) !important; }

/* ==========================================================================
   DISPLAY UTILITIES
   ========================================================================== */
.block       { display: block !important; }
.inline-block { display: inline-block !important; }
.inline      { display: inline !important; }
.hidden      { display: none !important; }
.visible     { visibility: visible !important; }
.invisible   { visibility: hidden !important; }

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

.relative  { position: relative !important; }
.absolute  { position: absolute !important; }
.fixed     { position: fixed !important; }
.sticky    { position: sticky !important; }

.w-full    { width: 100% !important; }
.h-full    { height: 100% !important; }
.min-h-screen { min-height: 100vh !important; }

.rounded-sm   { border-radius: var(--radius-sm) !important; }
.rounded-md   { border-radius: var(--radius-md) !important; }
.rounded-lg   { border-radius: var(--radius-lg) !important; }
.rounded-xl   { border-radius: var(--radius-xl) !important; }
.rounded-full { border-radius: var(--radius-full) !important; }

.border      { border: 1px solid var(--border-color) !important; }
.border-b    { border-bottom: 1px solid var(--border-color) !important; }
.border-t    { border-top: 1px solid var(--border-color) !important; }
.border-none { border: none !important; }

.shadow-sm   { box-shadow: var(--shadow-sm) !important; }
.shadow-md   { box-shadow: var(--shadow-md) !important; }
.shadow-lg   { box-shadow: var(--shadow-lg) !important; }

.cursor-pointer { cursor: pointer !important; }
.select-none    { user-select: none !important; }
.pointer-events-none { pointer-events: none !important; }

.transition { transition: all var(--transition-normal); }

/* ── 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;
}

/* ── Background Utilities ──────────────────────────────────────────────── */
.bg-primary    { background-color: var(--bg-primary) !important; }
.bg-secondary  { background-color: var(--bg-secondary) !important; }
.bg-tertiary   { background-color: var(--bg-tertiary) !important; }
.bg-card       { background-color: var(--bg-card) !important; }
.bg-transparent { background-color: transparent !important; }