/* ==========================================================================
   Valviconsult — main.css
   Structural layout + components. Tokens live in style.css (root :root vars).
   Deliberately lightweight: developer fills in section-specific styles.
   ========================================================================== */

/* --- Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
body   { margin: 0; background: var(--vc-paper); color: var(--vc-fg-1); font-family: var(--vc-font-ui); font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a    { color: var(--vc-brand); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
::selection { background: var(--vc-mark); color: var(--vc-fg-1); }

/* --- Container ------------------------------------------------------------ */
.vc-container { max-width: var(--vc-container); margin-inline: auto; padding-inline: 24px; }
.vc-container--wide { max-width: 1440px; }
.vc-container--narrow { max-width: 800px; }

/* --- Navigation ----------------------------------------------------------- */
.vc-nav {
    position: sticky; top: 0; z-index: 50;
    background: rgba(250,250,246,.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--vc-dur-base) var(--vc-ease),
                background  var(--vc-dur-base) var(--vc-ease);
}
.vc-nav.is-scrolled { border-bottom-color: var(--vc-border); background: rgba(250,250,246,.95); }
.vc-nav__inner {
    height: var(--vc-nav-h);
    display: flex; align-items: center; gap: 32px;
}
.vc-nav__logo { display: flex; align-items: center; text-decoration: none; flex-shrink: 0; }
.vc-nav__logo img { height: 28px; width: auto; }
.vc-nav__menu { display: flex; gap: 24px; list-style: none; margin: 0; padding: 0; }
.vc-nav__menu a {
    font-size: 14px; font-weight: 500; color: var(--vc-fg-2);
    text-decoration: none; padding: 6px 0;
    transition: color var(--vc-dur-fast) var(--vc-ease);
}
.vc-nav__menu a:hover { color: var(--vc-fg-1); }
.vc-nav__spacer { flex: 1; }

/* --- Buttons -------------------------------------------------------------- */
.vc-btn {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--vc-font-ui); font-weight: 600; font-size: 15px;
    line-height: 1; padding: 11px 18px; border-radius: var(--vc-r-sm);
    border: 1px solid transparent; cursor: pointer; text-decoration: none;
    transition: all var(--vc-dur-fast) var(--vc-ease); white-space: nowrap;
}
.vc-btn--primary  { background: var(--vc-brand);  color: #fff; }
.vc-btn--primary:hover  { background: var(--vc-brand-hover); color: #fff; text-decoration: none; }
.vc-btn--primary:active { background: var(--vc-brand-pressed); }
.vc-btn--secondary { background: var(--vc-card); color: var(--vc-fg-1); border-color: var(--vc-border-strong); }
.vc-btn--secondary:hover { background: var(--vc-paper-2); border-color: var(--vc-fg-3); color: var(--vc-fg-1); text-decoration: none; }
.vc-btn--ghost { background: transparent; color: var(--vc-fg-1); }
.vc-btn--ghost:hover { background: rgba(11,18,32,.04); text-decoration: none; }
.vc-btn--lg   { font-size: 16px; padding: 14px 22px; }
.vc-btn--sm   { font-size: 13px; padding: 7px 12px; }
.vc-btn:disabled, .vc-btn[disabled] { opacity: .45; cursor: not-allowed; pointer-events: none; }

/* --- Typography helpers --------------------------------------------------- */
.vc-display { font-family: var(--vc-font-display); font-weight: 500; font-size: clamp(36px,5vw,64px); line-height: 1.05; letter-spacing: -0.025em; }
.vc-h1      { font-family: var(--vc-font-display); font-weight: 500; font-size: clamp(32px,4vw,48px); line-height: 1.08; letter-spacing: -0.02em; }
.vc-h2      { font-family: var(--vc-font-display); font-weight: 500; font-size: clamp(26px,3vw,36px); line-height: 1.15; letter-spacing: -0.015em; }
.vc-h3      { font-family: var(--vc-font-ui); font-weight: 700; font-size: 22px; line-height: 1.2; }
.vc-h4      { font-family: var(--vc-font-ui); font-weight: 700; font-size: 18px; }
.vc-lead    { font-size: 19px; line-height: 1.5; color: var(--vc-fg-2); }
.vc-caption { font-size: 13px; color: var(--vc-fg-3); }
.vc-eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--vc-fg-3); }
.vc-num     { font-family: var(--vc-font-mono); font-variant-numeric: tabular-nums; }
.vc-mark    { background-image: linear-gradient(180deg,transparent 62%,var(--vc-mark) 62%,var(--vc-mark) 92%,transparent 92%); padding: 0 .05em; }

/* --- Cards ---------------------------------------------------------------- */
.vc-card {
    background: var(--vc-card);
    border: 1px solid var(--vc-border);
    border-radius: var(--vc-r-md);
    overflow: hidden;
}
.vc-card--dark { background: var(--vc-ink); border-color: transparent; }
.vc-card:not(.vc-card--no-hover) {
    transition: border-color var(--vc-dur-base) var(--vc-ease),
                box-shadow    var(--vc-dur-base) var(--vc-ease),
                transform     var(--vc-dur-base) var(--vc-ease);
}
.vc-card:not(.vc-card--no-hover):hover {
    border-color: var(--vc-border-strong);
    box-shadow: var(--vc-shadow-sm);
    transform: translateY(-1px);
}

/* --- Direct Answer Block -------------------------------------------------- */
.vc-direct-answer {
    background: var(--vc-card);
    border: 1px solid var(--vc-border);
    border-left: 3px solid var(--vc-brand);
    border-radius: 0 var(--vc-r-md) var(--vc-r-md) 0;
    padding: 20px 24px;
    margin-block: 32px;
}
.vc-direct-answer__eyebrow {
    font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
    color: var(--vc-brand); margin: 0 0 10px;
}
.vc-direct-answer__question {
    font-family: var(--vc-font-display); font-weight: 500;
    font-size: clamp(20px,2.5vw,26px); line-height: 1.2; letter-spacing: -0.015em;
    color: var(--vc-fg-1); margin: 0 0 14px;
}
.vc-direct-answer__answer strong { font-size: 16px; font-weight: 700; color: var(--vc-fg-1); }
.vc-direct-answer__answer { margin: 0 0 10px; }
.vc-direct-answer__body { font-size: 15px; line-height: 1.6; color: var(--vc-fg-2); max-width: 64ch; }

/* --- FAQ accordion -------------------------------------------------------- */
.vc-faq-item { border-bottom: 1px solid var(--vc-border); }
.vc-faq-item summary {
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; padding: 20px 0; cursor: pointer; list-style: none;
    font-family: var(--vc-font-display); font-size: 20px; font-weight: 500;
    letter-spacing: -0.015em; color: var(--vc-fg-1);
}
.vc-faq-item summary::-webkit-details-marker { display: none; }
.vc-faq-item summary::after {
    content: '+'; flex-shrink: 0; width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    background: var(--vc-paper-2); border-radius: 6px;
    font-size: 18px; color: var(--vc-fg-2);
    transition: background var(--vc-dur-fast) var(--vc-ease);
}
.vc-faq-item[open] summary::after { content: '−'; background: var(--vc-brand); color: #fff; }
.vc-faq-item__body { padding: 0 56px 20px 0; color: var(--vc-fg-2); font-size: 15px; line-height: 1.65; max-width: 64ch; }
.vc-faq-item__answer { font-weight: 700; color: var(--vc-fg-1); margin-bottom: 8px; }

/* --- Section spacing ------------------------------------------------------ */
.vc-section { padding-block: var(--vc-sp-9); }
.vc-section--sm { padding-block: var(--vc-sp-8); }
.vc-section--lg { padding-block: var(--vc-sp-10); }
.vc-section--ink { background: var(--vc-ink); color: var(--vc-fg-inv); }
.vc-section--paper-2 { background: var(--vc-paper-2); }
.vc-section__header { max-width: 760px; margin-bottom: 40px; }
.vc-section__eyebrow { margin-bottom: 14px; }

/* --- Badge / pill --------------------------------------------------------- */
.vc-badge {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 12px; font-weight: 600; padding: 4px 10px;
    border-radius: var(--vc-r-pill); line-height: 1.4;
}
.vc-badge--brand   { background: var(--vc-brand-tint);  color: var(--vc-brand-ink); }
.vc-badge--success { background: var(--vc-success-tint); color: var(--vc-success); }
.vc-badge--accent  { background: var(--vc-accent-tint);  color: #6B4F00; }
.vc-badge--neutral { background: var(--vc-paper-2); color: var(--vc-fg-2); border: 1px solid var(--vc-border); }

/* --- Forms ---------------------------------------------------------------- */
.vc-label { font-size: 13px; font-weight: 600; color: var(--vc-fg-1); display: block; margin-bottom: 6px; }
.vc-input, .vc-select, .vc-textarea {
    width: 100%; font-family: var(--vc-font-ui); font-size: 15px;
    padding: 11px 14px; background: var(--vc-card); color: var(--vc-fg-1);
    border: 1px solid var(--vc-border-strong); border-radius: var(--vc-r-sm); outline: none;
    transition: border-color var(--vc-dur-fast), box-shadow var(--vc-dur-fast);
}
.vc-input::placeholder, .vc-textarea::placeholder { color: var(--vc-fg-4); }
.vc-input:focus, .vc-select:focus, .vc-textarea:focus {
    border-color: var(--vc-brand);
    box-shadow: 0 0 0 3px rgba(31,78,216,.18);
}
.vc-field { margin-bottom: 16px; }
.vc-field-help  { font-size: 12px; color: var(--vc-fg-3); margin-top: 4px; }
.vc-field-error { font-size: 12px; color: var(--vc-danger); margin-top: 4px; }

/* --- Footer --------------------------------------------------------------- */
.vc-footer { background: var(--vc-ink); color: var(--vc-fg-inv); padding-block: 56px 32px; }
.vc-footer a { color: var(--vc-fg-inv-2); text-decoration: none; }
.vc-footer a:hover { color: var(--vc-fg-inv); }
.vc-footer__grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.vc-footer__col-head { font-size: 12px; font-weight: 700; color: var(--vc-accent); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 16px; }
.vc-footer__links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.vc-footer__links li a { font-size: 14px; }
.vc-footer__bottom { border-top: 1px solid var(--vc-border-ink); padding-top: 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 12px; color: var(--vc-fg-inv-2); }

/* --- Comparison table ----------------------------------------------------- */
.vc-table { width: 100%; border-collapse: collapse; font-family: var(--vc-font-ui); }
.vc-table th, .vc-table td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--vc-hairline); font-size: 14px; }
.vc-table thead th { background: var(--vc-paper-2); font-weight: 700; font-size: 13px; color: var(--vc-fg-1); }
.vc-table .vc-table__ours { background: var(--vc-brand-tint) !important; }
.vc-table thead .vc-table__ours { background: var(--vc-brand-tint-2) !important; color: var(--vc-brand-ink); }
.vc-table .vc-yes { color: var(--vc-success); font-weight: 700; }
.vc-table .vc-no  { color: var(--vc-fg-4); }

/* --- Focus ring ----------------------------------------------------------- */
:focus-visible { outline: 2px solid var(--vc-brand); outline-offset: 2px; border-radius: 2px; }

/* --- Print ---------------------------------------------------------------- */
@media print {
    .vc-nav { position: static !important; }
    .vc-btn { border: 1px solid currentColor !important; }
}

/* --- Responsive ----------------------------------------------------------- */
@media (max-width: 1024px) {
    .vc-footer__grid { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 768px) {
    :root { --vc-nav-h: 56px; }
    .vc-nav__menu { display: none; } /* Mobile menu handled by main.js */
    .vc-footer__grid { grid-template-columns: 1fr 1fr; gap: 28px; }
    .vc-section { padding-block: 64px; }
}
@media (max-width: 480px) {
    .vc-footer__grid { grid-template-columns: 1fr; }
}