/* ============================================================
   Universal design system — shared across all RE-Frame tools.
   ============================================================ */

html, body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    min-height: 100dvh;
    width: 100dvw;
    background-color: var(--color-page-bg, #FBFDFF);
    color: var(--color-text, #111827);
    font-family: 'Inter', system-ui, sans-serif;
    font-weight: 400;
    font-size: 16px;
    letter-spacing: 0;
    line-height: 1.5;
}

body {
    background-color: var(--color-page-bg, #FBFDFF);
    background-image: var(--gradient-page,
        radial-gradient(ellipse 70% 50% at 0% 0%, rgba(45, 204, 255, 0.10), transparent 55%),
        radial-gradient(ellipse 60% 50% at 100% 100%, rgba(227, 1, 71, 0.05), transparent 55%));
    background-attachment: fixed;
    background-repeat: no-repeat;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading, 'Aleo', Georgia, serif);
    font-weight: var(--font-weight-bold, 700);
    color: var(--color-primary-dark, #002757);
    line-height: 1.15;
    letter-spacing: -0.01em;
    margin: 0 0 var(--space-md, 1rem);
}

h1 { font-size: var(--font-size-title, 2.5rem); }
h2 { font-size: var(--font-size-subtitle, 1.75rem); }
h3 { font-size: var(--font-size-subtext, 1.25rem); }

a {
    font-family: var(--font-ui, 'Montserrat', system-ui, sans-serif);
    color: var(--color-primary, #335279);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover { color: var(--color-accent-1, #2DCCFF); }

/* ── Layout ──────────────────────────────────────────────────── */
.page {
    display: block;
    min-height: 100dvh;
    background-color: transparent;
}

.container {
    padding: var(--space-xl, 2rem) min(5%, var(--space-xl, 2rem));
    padding-bottom: var(--space-2xl, 3rem);
    max-width: 72rem;
    width: 100%;
    margin: 0 auto;
}

/* ── Surfaces ────────────────────────────────────────────────── */
.card {
    padding: var(--space-xl, 2rem);
    border-radius: var(--radius-lg, 16px);
    border: 1px solid var(--color-border, #E5E7EB);
    background: var(--color-surface, #FCFEFF);
    box-shadow: var(--shadow-card, var(--shadow-1));
    transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.card-hoverable:hover {
    box-shadow: var(--shadow-card-hover, var(--shadow-2));
    transform: translateY(-1px);
}

/* ── Section titles (universal pattern with accent indicator) ── */
.section-title,
.qr-section-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm, 0.5rem);
    font-family: var(--font-ui, 'Montserrat', system-ui, sans-serif);
    font-size: var(--font-size-text-sm, 14px);
    font-weight: var(--font-weight-b, 600);
    color: var(--color-primary-dark, #002757);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0 0 var(--space-md, 1rem);
}

/* ── Form controls (universal) ───────────────────────────────── */
.form-input,
input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="url"],
input[type="tel"],
select,
textarea {
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: var(--radius-md, 12px);
    font-family: var(--font-body, 'Inter', system-ui, sans-serif);
    font-size: var(--font-size-text, 16px);
    color: var(--color-text, #111827);
    background: var(--color-surface, #FCFEFF);
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

input:hover:not(:disabled):not(:focus),
select:hover:not(:disabled):not(:focus),
textarea:hover:not(:disabled):not(:focus) {
    border-color: var(--color-border-strong, #CCD4DD);
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--color-accent-1, #2DCCFF);
    box-shadow: var(--ring-focus, 0 0 0 3px rgba(45, 204, 255, 0.30));
}

input[type="file"]::file-selector-button {
    margin-right: 0.75rem;
    padding: 0.375rem 0.875rem;
    border: 1px solid var(--color-border, #E5E7EB);
    border-radius: var(--radius-sm, 4px);
    background: var(--color-surface-subtle, #F3F4F6);
    color: var(--color-text-secondary, #4B5563);
    font-family: var(--font-ui, 'Montserrat', system-ui, sans-serif);
    font-size: var(--font-size-text-sm, 14px);
    font-weight: var(--font-weight-m, 500);
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
}

input[type="file"]::file-selector-button:hover {
    background: var(--color-accent-1-20, #ECF8FE);
    border-color: var(--color-accent-1, #2DCCFF);
}

/* Text utilities */
.text-wrap {
    white-space: normal;
    word-break: break-word;
    overflow-wrap: anywhere;
}

.muted {
    color: var(--color-text-muted, #6B7280);
    font-size: var(--font-size-text-sm, 14px);
}

.error {
    color: var(--color-error, #FF2A04);
    font-size: var(--font-size-text-sm, 14px);
    min-height: 1.2em;
}

.empty {
    color: var(--color-text-muted, #6B7280);
    font-style: italic;
}

/* ── Animations ───────────────────────────────────────────────── */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-8px); }
}

@keyframes fade-up {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.fade-up { animation: fade-up 0.4s ease both; }