/* ===================================
   Batendo Lata — PWA Styles
   Mobile-first, no frameworks
   =================================== */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--asphalt);
  color: var(--off-white);
  min-height: 100vh;
  min-height: 100dvh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 16px; }

/* ---------- CSS Variables ---------- */
:root {
  --asphalt: #14181C;
  --asphalt-2: #1D2329;
  --off-white: #F3F1EA;
  --yellow: #F2B705;
  --green: #2F9E44;
  --concrete: #7B838A;
  --yellow-hover: #FFC81E;
  --green-hover: #38B554;
  --danger: #E5484D;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,.35);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.45);
  --transition: .3s cubic-bezier(.4,0,.2,1);
  --max-w: 480px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  letter-spacing: .02em;
}

.mono { font-family: 'JetBrains Mono', monospace; }

/* ---------- Layout Helpers ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

.page {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  max-width: var(--max-w);
  margin: 0 auto;
  position: relative;
}

.page--center {
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 24px 20px;
}

/* ---------- Screen (full-screen entry) ---------- */
.screen {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px 24px;
  position: relative;
  overflow: hidden;
}

.screen__bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 20%, rgba(242,183,5,.06) 0%, transparent 60%),
              radial-gradient(ellipse at 50% 90%, rgba(47,158,68,.05) 0%, transparent 50%);
  pointer-events: none;
}

/* ---------- Logo ---------- */
.logo {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: clamp(2.4rem, 12vw, 3.2rem);
  line-height: 1;
  color: var(--off-white);
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo__icon {
  width: clamp(48px, 14vw, 64px);
  height: clamp(48px, 14vw, 64px);
  flex-shrink: 0;
}

.logo__text { letter-spacing: .03em; }

.logo__text span { color: var(--yellow); }

.logo--sm { font-size: 1.4rem; }
.logo--sm .logo__icon { width: 32px; height: 32px; }

/* ---------- Tagline ---------- */
.tagline {
  margin-top: 12px;
  font-size: 1rem;
  color: var(--concrete);
  max-width: 280px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 24px;
  border-radius: var(--radius);
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: .03em;
  transition: all var(--transition);
  width: 100%;
  min-height: 56px;
  position: relative;
  overflow: hidden;
}

.btn:active { transform: scale(.97); }

.btn--yellow {
  background: var(--yellow);
  color: var(--asphalt);
  box-shadow: 0 4px 16px rgba(242,183,5,.3);
}
.btn--yellow:hover { background: var(--yellow-hover); box-shadow: 0 6px 24px rgba(242,183,5,.4); }

.btn--green {
  background: var(--green);
  color: var(--off-white);
  box-shadow: 0 4px 16px rgba(47,158,68,.3);
}
.btn--green:hover { background: var(--green-hover); box-shadow: 0 6px 24px rgba(47,158,68,.4); }

.btn--outline {
  background: transparent;
  color: var(--off-white);
  border: 2px solid var(--concrete);
}
.btn--outline:hover { border-color: var(--off-white); background: rgba(255,255,255,.05); }

.btn--ghost {
  background: transparent;
  color: var(--concrete);
  padding: 10px 16px;
  min-height: 40px;
  font-size: .95rem;
}
.btn--ghost:hover { color: var(--off-white); }

.btn--block { width: 100%; }
.btn--disabled, .btn:disabled { opacity: .45; pointer-events: none; }

.btn__icon { width: 22px; height: 22px; flex-shrink: 0; }

/* ---------- Entry Screen Actions ---------- */
.entry-actions {
  width: 100%;
  max-width: 360px;
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.entry-link {
  margin-top: 20px;
  font-size: .95rem;
  color: var(--concrete);
  transition: color var(--transition);
}
.entry-link:hover { color: var(--yellow); }

/* ---------- Forms ---------- */
.form { width: 100%; max-width: 400px; margin: 0 auto; }

.form__title {
  font-size: 1.6rem;
  margin-bottom: 6px;
}

.form__subtitle {
  color: var(--concrete);
  font-size: .9rem;
  margin-bottom: 28px;
}

.field { margin-bottom: 18px; position: relative; }

.field__label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--concrete);
  margin-bottom: 6px;
  font-family: 'JetBrains Mono', monospace;
}

.field__input,
.field__select {
  width: 100%;
  padding: 14px 16px;
  background: var(--asphalt-2);
  border: 1.5px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--off-white);
  outline: none;
  transition: all var(--transition);
}

.field__input::placeholder { color: rgba(123,131,138,.6); }

.field__input:focus,
.field__select:focus {
  border-color: var(--green);
  background: rgba(47,158,68,.05);
  box-shadow: 0 0 0 3px rgba(47,158,68,.15);
}

.field__input--error { border-color: var(--danger); }
.field__input--error:focus { box-shadow: 0 0 0 3px rgba(229,72,77,.15); }

.field__error {
  font-size: .78rem;
  color: var(--danger);
  margin-top: 4px;
  display: none;
}
.field__error--show { display: block; }

.field__icon {
  position: absolute;
  right: 14px;
  top: 38px;
  width: 20px;
  height: 20px;
  color: var(--concrete);
  pointer-events: none;
}

.field__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237B838A' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 20px;
  padding-right: 40px;
}

.field__select option { background: var(--asphalt-2); }

/* ---------- Progress Bar (multi-step) ---------- */
.progress {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 20px 20px 0;
}

.progress__bar {
  height: 4px;
  background: var(--asphalt-2);
  border-radius: 2px;
  overflow: hidden;
}

.progress__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--green), var(--yellow));
  border-radius: 2px;
  transition: width .4s cubic-bezier(.4,0,.2,1);
  width: 33%;
}

.progress__steps {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: .72rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--concrete);
}

.progress__step--active { color: var(--yellow); font-weight: 600; }
.progress__step--done { color: var(--green); }

/* ---------- Multi-step Form ---------- */
.steps { flex: 1; padding: 0 20px 20px; }

.step {
  display: none;
  animation: stepIn .35s ease;
}
.step--active { display: block; }

@keyframes stepIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.step__header { margin-bottom: 24px; }

.step__title {
  font-size: 1.4rem;
  margin-bottom: 4px;
}

.step__desc {
  color: var(--concrete);
  font-size: .88rem;
}

.step__nav {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.step__nav .btn { flex: 1; }

/* ---------- Header (panel) ---------- */
.header {
  background: var(--asphalt-2);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--asphalt);
  flex-shrink: 0;
  overflow: hidden;
}

.header__avatar img { width: 100%; height: 100%; object-fit: cover; }

.header__info { flex: 1; min-width: 0; }

.header__name {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header__sub {
  font-size: .78rem;
  color: var(--concrete);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header__action {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.05);
  transition: background var(--transition);
}
.header__action:hover { background: rgba(255,255,255,.1); }

.header__action svg { width: 20px; height: 20px; color: var(--concrete); }

/* ---------- Panel Content ---------- */
.panel { flex: 1; padding: 20px; padding-bottom: calc(80px + var(--safe-bottom)); }

.panel__greeting {
  margin-bottom: 24px;
}

.panel__hello {
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
}

.panel__date {
  font-size: .82rem;
  color: var(--concrete);
  font-family: 'JetBrains Mono', monospace;
}

/* ---------- Cards ---------- */
.card {
  background: var(--asphalt-2);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 14px;
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 16px;
}

.card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--yellow);
  transition: width var(--transition);
}
.card:hover::before { width: 6px; }
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

.card--green::before { background: var(--green); }

.card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(242,183,5,.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.card--green .card__icon { background: rgba(47,158,68,.12); }

.card__icon svg { width: 24px; height: 24px; color: var(--yellow); }
.card--green .card__icon svg { color: var(--green); }

.card__body { flex: 1; min-width: 0; }

.card__title {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 2px;
}

.card__desc {
  font-size: .82rem;
  color: var(--concrete);
}

.card__arrow {
  color: var(--concrete);
  flex-shrink: 0;
}

/* ---------- Stat Cards ---------- */
.stats-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.stat {
  background: var(--asphalt-2);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
}

.stat__value {
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--yellow);
}

.stat__label {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--concrete);
  font-family: 'JetBrains Mono', monospace;
  margin-top: 2px;
}

/* ---------- Bottom Nav ---------- */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--max-w);
  background: var(--asphalt-2);
  border-top: 1px solid rgba(255,255,255,.06);
  display: flex;
  justify-content: space-around;
  padding: 8px 0 calc(8px + var(--safe-bottom));
  z-index: 100;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 6px 16px;
  color: var(--concrete);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .03em;
  text-transform: uppercase;
  font-family: 'JetBrains Mono', monospace;
  transition: color var(--transition);
}

.nav-item svg { width: 24px; height: 24px; }

.nav-item--active { color: var(--yellow); }
.nav-item:hover { color: var(--off-white); }
.nav-item--active:hover { color: var(--yellow); }

/* ---------- Login Page ---------- */
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--asphalt-2);
  border-radius: var(--radius);
  padding: 32px 24px;
  box-shadow: var(--shadow-lg);
}

.login-card .form { max-width: 100%; }

.login-card .field__input { background: var(--asphalt); }

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  color: var(--concrete);
  font-size: .8rem;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,.08);
}

/* ---------- Alert ---------- */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: .88rem;
  margin-bottom: 16px;
  display: none;
  align-items: center;
  gap: 10px;
}
.alert--show { display: flex; }
.alert--error { background: rgba(229,72,77,.12); color: var(--danger); border: 1px solid rgba(229,72,77,.25); }
.alert--success { background: rgba(47,158,68,.12); color: var(--green); border: 1px solid rgba(47,158,68,.25); }

.alert__icon { width: 20px; height: 20px; flex-shrink: 0; }

/* ---------- Spinner ---------- */
.spinner {
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255,255,255,.2);
  border-top-color: var(--off-white);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

.btn--loading .btn__text { visibility: hidden; }
.btn--loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(20,24,28,.2);
  border-top-color: var(--asphalt);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.mb-16 { margin-bottom: 16px; }
.hidden { display: none !important; }
.fade-in { animation: fadeIn .4s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ---------- Responsive (tablet/desktop) ---------- */
@media (min-width: 768px) {
  :root { --max-w: 720px; }
  .stats-row { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  :root { --max-w: 960px; }
}