/* DexFlow token system — LearnHub-dialect claymorphism, approved 2026-04-23.
   Palette: Dexterous teal primary + pastel client hues + near-black borders. */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800&family=Open+Sans:wght@300;400;500;600;700&display=swap');

:root {
    /* Brand */
    --brand-primary:       #0F766E;
    --brand-primary-hover: #134E4A;
    --brand-primary-soft:  #F0FDFA;
    --brand-accent-bg:     #CCFBF1;

    /* Surfaces */
    --page-bg:       #FBF7F0;
    --surface:       #FFFFFF;
    --surface-muted: #F7F5F3;

    /* Border & shadow */
    --border-strong: #0f172a;
    --border-soft:   #E2E8F0;

    /* Client hues */
    --clay-sky:      #BFDBFE;  --clay-sky-fg:      #1E3A8A;
    --clay-mint:     #A7F3D0;  --clay-mint-fg:     #065F46;
    --clay-lavender: #C7D2FE;  --clay-lavender-fg: #3730A3;
    --clay-peach:    #FED7AA;  --clay-peach-fg:    #9A3412; /* reserved — Sales Invoicing when ported */
    --clay-butter:   #FEF3C7;  --clay-butter-fg:   #854D0E;

    /* Error */
    --error-bg: #FECACA;  --error-fg: #7F1D1D;

    /* Offset hard shadows */
    --shadow-card:   5px 5px 0 var(--border-strong);
    --shadow-btn:    4px 4px 0 var(--border-strong);
    --shadow-tile:   3px 3px 0 var(--border-strong);
    --shadow-hover:  8px 8px 0 var(--border-strong);
}

* { box-sizing: border-box; }

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

body {
    font-family: 'Open Sans', system-ui, sans-serif;
    background-color: var(--page-bg);
    color: var(--border-strong);
    line-height: 1.55;
    margin: 0;
}

h1, h2, h3, h4, h5, h6, .clay-display {
    font-family: 'Poppins', 'Open Sans', system-ui, sans-serif;
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.1;
    margin: 0;
}

.clay-display { line-height: 1.08; }

.text-brand-accent { color: var(--brand-primary); }

code, .clay-code {
    background: #F1F5F9;
    border: 1px solid #CBD5E1;
    padding: 1px 6px;
    border-radius: 4px;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
    font-size: 0.875em;
    color: var(--border-strong);
}

/* ========= Card ========= */

.clay-card {
    background: var(--surface);
    border: 2.5px solid var(--border-strong);
    border-radius: 20px;
    box-shadow: var(--shadow-card);
    padding: 24px;
    position: relative;
    transition: transform 150ms ease-out, box-shadow 150ms ease-out;
}

a.clay-card, .clay-card-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

a.clay-card:hover, .clay-card-link:hover {
    transform: translate(-2px, -2px);
    box-shadow: var(--shadow-hover);
}

/* ========= Buttons ========= */

.clay-btn, .clay-btn-ghost, .clay-btn-pill, .clay-btn-pill-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 14px;
    line-height: 1.2;
    padding: 11px 22px;
    border: 2.5px solid var(--border-strong);
    text-decoration: none;
    cursor: pointer;
    transition: transform 120ms ease-out, box-shadow 120ms ease-out, background-color 120ms ease-out;
}

.clay-btn          { background: var(--brand-primary); color: #fff; border-radius: 14px;  box-shadow: var(--shadow-btn); }
.clay-btn-ghost    { background: #fff;                 color: var(--border-strong); border-radius: 14px; }
.clay-btn-pill     { background: var(--brand-primary); color: #fff; border-radius: 999px; box-shadow: var(--shadow-btn); }
.clay-btn-pill-ghost { background: #fff;               color: var(--border-strong); border-radius: 999px; }

.clay-btn:hover, .clay-btn-pill:hover { background: var(--brand-primary-hover); transform: translateY(-1px); box-shadow: 5px 5px 0 var(--border-strong); }
.clay-btn-ghost:hover, .clay-btn-pill-ghost:hover { transform: translateY(-1px); box-shadow: var(--shadow-btn); }

.clay-btn:active, .clay-btn-ghost:active, .clay-btn-pill:active, .clay-btn-pill-ghost:active {
    transform: translate(2px, 2px);
    box-shadow: none;
}

.clay-btn:disabled, button.clay-btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ========= Chips ========= */

.clay-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border: 2px solid var(--border-strong);
    border-radius: 999px;
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    line-height: 1;
}

.clay-chip--sky      { background: var(--clay-sky);      color: var(--clay-sky-fg); }
.clay-chip--mint     { background: var(--clay-mint);     color: var(--clay-mint-fg); }
.clay-chip--lavender { background: var(--clay-lavender); color: var(--clay-lavender-fg); }
.clay-chip--peach    { background: var(--clay-peach);    color: var(--clay-peach-fg); }
.clay-chip--butter   { background: var(--clay-butter);   color: var(--clay-butter-fg); }
.clay-chip--brand    { background: var(--brand-accent-bg); color: var(--brand-primary); }

.clay-chip--on-card  { position: absolute; top: 16px; right: 16px; }

.clay-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: var(--brand-accent-bg);
    color: var(--brand-primary);
    border: 2px solid var(--border-strong);
    border-radius: 999px;
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.clay-eyebrow::before {
    content: '';
    display: block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--brand-primary);
}

/* ========= Icon tiles ========= */

.clay-tile {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border: 2.5px solid var(--border-strong);
    border-radius: 16px;
    box-shadow: var(--shadow-tile);
    flex-shrink: 0;
}

.clay-tile svg { width: 24px; height: 24px; }

.clay-tile--sky      { background: var(--clay-sky);      color: var(--clay-sky-fg); }
.clay-tile--mint     { background: var(--clay-mint);     color: var(--clay-mint-fg); }
.clay-tile--lavender { background: var(--clay-lavender); color: var(--clay-lavender-fg); }
.clay-tile--peach    { background: var(--clay-peach);    color: var(--clay-peach-fg); }
.clay-tile--butter   { background: var(--clay-butter);   color: var(--clay-butter-fg); }

/* Small logo tile variant */
.clay-tile--sm       { width: 34px; height: 34px; border-width: 2px; border-radius: 10px; box-shadow: none; }
.clay-tile--sm svg   { width: 18px; height: 18px; }

/* ========= Error ========= */

.clay-error {
    background: var(--error-bg);
    color: var(--error-fg);
    border: 2.5px solid var(--error-fg);
    border-radius: 14px;
    padding: 12px 16px;
    box-shadow: 3px 3px 0 var(--error-fg);
    font-weight: 600;
}

.clay-error strong { font-weight: 700; }

/* ========= Dropzone ========= */

.clay-dropzone {
    border: 2.5px dashed #94A3B8;
    border-radius: 14px;
    padding: 28px;
    text-align: center;
    background: #F8FAFC;
    color: #64748B;
    font-size: 14px;
    transition: border-color 150ms, background 150ms;
}

.clay-dropzone:hover,
.clay-dropzone.is-dragover { border-color: var(--brand-primary); background: var(--brand-primary-soft); }

/* ========= Utilities ========= */

.container-1080 { max-width: 1080px; margin-left: auto; margin-right: auto; padding-left: 24px; padding-right: 24px; }
.container-780  { max-width: 780px;  margin-left: auto; margin-right: auto; padding-left: 24px; padding-right: 24px; }
.container-820  { max-width: 820px;  margin-left: auto; margin-right: auto; padding-left: 24px; padding-right: 24px; }

/* ========= Focus visibility ========= */

:focus-visible {
    outline: 3px solid var(--brand-primary);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ========= Reduced motion ========= */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
    a.clay-card:hover, .clay-card-link:hover,
    .clay-btn:hover, .clay-btn:active,
    .clay-btn-pill:hover, .clay-btn-pill:active { transform: none; }
}