/* blaze-data — mobile-first dark theme
 * Defaults target phone (≤ ~700px effective width). Desktop styles under
 * @media (min-width: 700px). Palette mirrors bdata for family look. */

:root {
    --bg:       #0e0f13;
    --panel:    #171a21;
    --panel-2: #1e2129;
    --border:   #2a2e39;
    --text:     #d7dbe4;
    --text-dim: #b0b8c8;
    --accent:   #ff9f4a;
    --accent-2: #4aa3ff;
    --success:  #4ac67a;
    --warn:     #d9a441;
    --danger:   #dc3545;

    /* Mobile-first tap target minimum */
    --tap: 44px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
    margin: 0; padding: 0;
    background: var(--bg); color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    /* iOS auto-zooms on focus if input font < 16px — use 16px baseline. */
    font-size: 16px; line-height: 1.5;
    /* Prevent horizontal bounce on iOS */
    overscroll-behavior-x: none;
    /* Respect notch */
    padding: env(safe-area-inset-top) env(safe-area-inset-right)
             env(safe-area-inset-bottom) env(safe-area-inset-left);
}

body { min-height: 100vh; min-height: 100dvh; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { margin: 0 0 12px; line-height: 1.2; }
h1 { font-size: 26px; font-weight: 700; }
h2 { font-size: 20px; font-weight: 700; }
h3 { font-size: 16px; font-weight: 600; }

.muted     { color: var(--text-dim); }
.text-sm   { font-size: 13px; }
.text-lg   { font-size: 18px; }

/* ── Inputs & buttons ────────────────────────────────────────────────── */
input[type="text"],
input[type="password"],
input[type="search"],
input[type="date"],
textarea,
select {
    -webkit-appearance: none;
    appearance: none;
    background: var(--panel-2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 14px;
    font-size: 16px;     /* prevent iOS zoom on focus */
    font-family: inherit;
    min-height: var(--tap);
}
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(255,159,74,0.2);
}

.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 8px;
    min-height: var(--tap);
    padding: 12px 20px;
    border-radius: 8px;
    border: 1px solid transparent;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: filter .15s ease, background .15s ease;
    background: var(--panel-2);
    color: var(--text);
}
.btn:active { filter: brightness(1.15); }
.btn-primary { background: var(--accent); color: #000; border-color: var(--accent); }
.btn-primary:active { filter: brightness(1.1); }
.btn-ghost   { background: transparent; color: var(--text-dim); border-color: var(--border); }
.btn-danger  { background: var(--danger); color: #fff; border-color: var(--danger); }

/* ── Alerts ──────────────────────────────────────────────────────────── */
.alert { padding: 12px 14px; border-radius: 8px; margin-bottom: 12px; font-size: 14px; }
.alert-error   { background: rgba(220,53,69,0.15);  color: #ffb1b7; border: 1px solid rgba(220,53,69,0.5); }
.alert-success { background: rgba(74,198,122,0.15); color: #b3e8c5; border: 1px solid rgba(74,198,122,0.5); }
.alert-info    { background: rgba(74,163,255,0.15); color: #a8caf7; border: 1px solid rgba(74,163,255,0.5); }

/* ── Layout: centered card (sign-in / redeem screens) ────────────────── */
.page-centered {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex; align-items: center; justify-content: center;
    padding: 24px 16px;
}
.centered-card {
    width: 100%;
    max-width: 420px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
}

/* ── App shell: sticky header + main scroll area ─────────────────────── */
.app-shell { padding: 0; }   /* header handles its own safe-area */
.app-header {
    position: sticky; top: 0; z-index: 20;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    padding: calc(env(safe-area-inset-top) + 12px) 16px 12px;
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.app-brand {
    font-weight: 700; font-size: 16px; letter-spacing: 0.3px;
    color: var(--accent);
}
.app-user  { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-dim); }
.app-avatar { width: 26px; height: 26px; border-radius: 50%; }
.app-link  { color: var(--text-dim); font-size: 13px; }
.app-link:hover { color: var(--accent); }
.app-main  { padding: 16px; padding-bottom: calc(env(safe-area-inset-bottom) + 24px); }

/* Layouts used inside .app-main sometimes want the centered-card look */
.app-main .centered-card { margin: 0 auto; }

/* ── Desktop overrides ───────────────────────────────────────────────── */
@media (min-width: 700px) {
    body { font-size: 15px; }
    h1 { font-size: 30px; }
    h2 { font-size: 22px; }

    .app-header { padding: 12px 24px; }
    .app-main   { padding: 24px; max-width: 1200px; margin: 0 auto; }

    /* Wider cards look better on desktop */
    .centered-card { max-width: 480px; padding: 28px; }
}