/* ============================================================
   HMV DATA — Styles communs
   Office de Tourisme Haute Maurienne Vanoise
   ============================================================ */

:root {
  --snow:      #f4f1ec;
  --ice:       #e8eef5;
  --deep:      #0d1b2a;
  --alpine:    #1a3a5c;
  --summit:    #2d6a9f;
  --glacier:   #5ba3d4;
  --melt:      #a8d4f0;
  --hiver:     #2d6a9f;
  --ete:       #e07b3c;
  --printemps: #4a9e6b;
  --automne:   #b85c38;
  --gold:      #c9a84c;
  --nav-h:     56px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--deep);
  color: var(--snow);
  font-family: 'DM Mono', monospace;
  min-height: 100vh;
  overflow-x: hidden;
  padding-top: var(--nav-h);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(45,106,159,.12) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(91,163,212,.06) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(13,27,42,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.07);
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 32px;
  gap: 0;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  margin-right: 40px;
  flex-shrink: 0;
}

.nav-brand-bar {
  width: 3px;
  height: 22px;
  background: linear-gradient(180deg, var(--glacier), var(--summit));
  border-radius: 2px;
}

.nav-brand-text {
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--glacier);
  font-weight: 500;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.nav-link {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(244,241,236,.45);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 2px;
  transition: all .2s;
  border: 1px solid transparent;
}

.nav-link:hover {
  color: var(--snow);
  background: rgba(255,255,255,.05);
}

.nav-link.active {
  color: var(--glacier);
  border-color: rgba(91,163,212,.3);
  background: rgba(91,163,212,.08);
}

.nav-date {
  font-size: 10px;
  letter-spacing: .15em;
  color: rgba(244,241,236,.2);
  margin-left: auto;
}

/* ---- Layout ---- */
.container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 32px 80px;
}

/* ---- Page header ---- */
.page-header {
  margin-bottom: 48px;
  border-bottom: 1px solid rgba(244,241,236,.08);
  padding-bottom: 32px;
}

.page-header h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(32px, 4vw, 56px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--snow);
  margin-bottom: 8px;
}

.page-header h1 span { color: var(--glacier); }

.page-header .subtitle {
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(244,241,236,.35);
  margin-top: 12px;
}

/* ---- Section ---- */
.section-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 24px;
}

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--snow);
  white-space: nowrap;
}

.section-line {
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,.07);
}

/* ---- KPI Cards ---- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 56px;
}

.kpi-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 4px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: border-color .3s;
}

.kpi-card:hover { border-color: rgba(91,163,212,.35); }

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--summit), var(--glacier));
}

.kpi-label {
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(244,241,236,.4);
  margin-bottom: 10px;
}

.kpi-value {
  font-family: 'Playfair Display', serif;
  font-size: 30px;
  font-weight: 700;
  color: var(--snow);
  line-height: 1;
}

.kpi-sub {
  font-size: 10px;
  color: rgba(244,241,236,.3);
  margin-top: 8px;
}

.kpi-delta { font-size: 11px; margin-top: 8px; font-weight: 500; }
.kpi-delta.up   { color: #6fcf97; }
.kpi-delta.down { color: #eb5757; }

/* ---- Charts ---- */
.chart-wrap {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 4px;
  padding: 28px;
}

.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 56px;
}

@media (max-width: 768px) {
  .charts-row { grid-template-columns: 1fr; }
}

/* ---- Filter tabs ---- */
.filter-bar { margin-bottom: 40px; }

.filter-label {
  font-size: 10px;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: rgba(244,241,236,.3);
  margin-bottom: 10px;
}

.filter-tabs { display: flex; flex-wrap: wrap; gap: 8px; }

.filter-tab {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 7px 16px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 2px;
  background: transparent;
  color: rgba(244,241,236,.45);
  cursor: pointer;
  transition: all .2s;
}

.filter-tab:hover {
  border-color: rgba(91,163,212,.5);
  color: var(--glacier);
  background: rgba(91,163,212,.06);
}

.filter-tab.active {
  border-color: var(--glacier);
  color: var(--snow);
  background: rgba(91,163,212,.15);
}

/* ---- Saison cards ---- */
.saison-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 56px;
}

@media (max-width: 900px) {
  .saison-grid { grid-template-columns: repeat(2, 1fr); }
}

.saison-col-header {
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(244,241,236,.35);
  margin-bottom: 10px;
  padding-left: 4px;
}

.saison-item {
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 3px;
  padding: 14px;
  position: relative;
  transition: all .2s;
}

.saison-item:hover {
  background: rgba(255,255,255,.055);
  border-color: rgba(91,163,212,.25);
}

.saison-item .year  { font-size: 10px; color: rgba(244,241,236,.4); letter-spacing: .1em; margin-bottom: 5px; }
.saison-item .amount { font-family: 'Playfair Display', serif; font-size: 17px; font-weight: 700; }
.saison-item .txn   { font-size: 10px; color: rgba(244,241,236,.3); margin-top: 4px; }
.saison-item .bar   { position: absolute; bottom: 0; left: 0; height: 2px; border-radius: 0 0 3px 3px; transition: width .8s ease; }

.hiver   .bar { background: var(--hiver); }
.ete     .bar { background: var(--ete); }
.printemps .bar { background: var(--printemps); }
.automne .bar { background: var(--automne); }

.hiver   .amount { color: var(--melt); }
.ete     .amount { color: #f0b882; }
.printemps .amount { color: #8fd4a8; }
.automne .amount { color: #e09070; }

/* ---- Legend ---- */
.legend { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 28px; }

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(244,241,236,.45);
}

.legend-dot { width: 8px; height: 8px; border-radius: 50%; }

/* ---- Footer ---- */
.page-footer {
  border-top: 1px solid rgba(255,255,255,.06);
  padding-top: 20px;
  font-size: 10px;
  color: rgba(244,241,236,.18);
  letter-spacing: .15em;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---- Animations ---- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.kpi-card { animation: fadeUp .4s ease both; }
.kpi-card:nth-child(1) { animation-delay: .05s; }
.kpi-card:nth-child(2) { animation-delay: .10s; }
.kpi-card:nth-child(3) { animation-delay: .15s; }
.kpi-card:nth-child(4) { animation-delay: .20s; }