/* ==========================================================================
   GeekTraders — Digital Business Cards
   Designed for B2B oil & gas traders, optimized for users 50+:
   - 18–20px body text, 32–44px headings
   - 56–64px touch targets, generous spacing
   - High-contrast labels (no icon-only buttons)
   ========================================================================== */

.page-contacts {
    --card-radius: 24px;
    --btn-radius: 14px;
    --btn-height: 64px;
    --btn-height-sm: 56px;
    --gap-sm: 12px;
    --gap-md: 16px;
    --gap-lg: 24px;
    --color-whatsapp: #25D366;
    --color-telegram: #229ED9;
}

.page-contacts body,
body.page-contacts {
    background:
        radial-gradient(1200px 600px at 50% -200px, rgba(59, 130, 246, 0.18), transparent 60%),
        var(--color-bg-primary);
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.contacts-hero {
    padding: 140px 0 32px;
    text-align: center;
}

.contacts-hero-title {
    font-size: clamp(2.25rem, 5vw, 3.25rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.contacts-hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.55;
    color: var(--color-text-secondary);
    max-width: 620px;
    margin: 0 auto;
}

@media (max-width: 640px) {
    .contacts-hero { padding: 110px 0 24px; }
    .contacts-hero-subtitle { font-size: 1rem; }
}

/* --------------------------------------------------------------------------
   Cards container
   -------------------------------------------------------------------------- */
.cards-wrap {
    padding: 32px 0 96px;
}

.cards-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    max-width: 520px;
    margin: 0 auto;
}

/* --------------------------------------------------------------------------
   Business Card
   -------------------------------------------------------------------------- */
.biz-card {
    position: relative;
    background:
        linear-gradient(180deg, rgba(59, 130, 246, 0.06) 0%, transparent 30%),
        var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    padding: 32px 24px 28px;
    overflow: hidden;
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.04) inset,
        0 24px 48px -16px rgba(0, 0, 0, 0.45);
}

.biz-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent) 0%, #60a5fa 50%, var(--color-accent) 100%);
}

@media (min-width: 480px) {
    .biz-card { padding: 36px 32px 32px; }
}

/* Top: photo + identity */
.biz-card-top {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    text-align: center;
    margin-bottom: 28px;
}

.biz-card-photo-wrap {
    position: relative;
    width: 132px;
    height: 132px;
    border-radius: 50%;
    padding: 4px;
    background: linear-gradient(135deg, var(--color-accent) 0%, #60a5fa 100%);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.35);
    flex-shrink: 0;
}

.biz-card-photo {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    background: var(--color-bg-tertiary);
    display: block;
}

.biz-card-id { display: flex; flex-direction: column; gap: 6px; align-items: center; }

.biz-card-name {
    font-size: clamp(1.75rem, 5vw, 2.25rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.01em;
    margin: 0;
}

.biz-card-role {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    margin: 0;
    font-weight: 500;
}

.biz-card-role:empty { display: none; }

.biz-card-company {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin: 0;
    font-weight: 500;
}

.biz-card-langs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 4px;
    padding: 0;
    list-style: none;
}

.biz-card-langs li {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--color-text-secondary);
    background: rgba(148, 163, 184, 0.08);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 4px 10px;
    text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.biz-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    min-height: var(--btn-height);
    padding: 12px 20px;
    border: 1px solid transparent;
    border-radius: var(--btn-radius);
    font-family: inherit;
    font-size: 1.0625rem;
    font-weight: 600;
    line-height: 1.2;
    text-align: center;
    text-decoration: none;
    color: var(--color-text-primary);
    background: transparent;
    cursor: pointer;
    transition: transform 0.15s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}

.biz-btn:focus-visible {
    outline: 3px solid #60a5fa;
    outline-offset: 3px;
}

.biz-btn svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

.biz-btn:active { transform: translateY(1px); }

/* Primary: Save Contact */
.biz-btn--primary {
    background: linear-gradient(135deg, var(--color-accent) 0%, #2563eb 100%);
    color: #fff;
    font-size: 1.125rem;
    font-weight: 700;
    box-shadow:
        0 4px 12px rgba(59, 130, 246, 0.4),
        0 1px 0 rgba(255, 255, 255, 0.2) inset;
}

.biz-btn--primary:hover {
    box-shadow:
        0 6px 20px rgba(59, 130, 246, 0.55),
        0 1px 0 rgba(255, 255, 255, 0.2) inset;
    transform: translateY(-1px);
}

.biz-btn--primary svg { width: 24px; height: 24px; }

/* Ghost: 4-up grid items */
.biz-btn--ghost {
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    min-height: 96px;
    padding: 14px 10px;
    background: rgba(148, 163, 184, 0.05);
    border-color: var(--color-border);
    color: var(--color-text-primary);
    text-align: center;
}

.biz-btn--ghost:hover {
    background: rgba(148, 163, 184, 0.1);
    border-color: var(--color-border-hover);
}

.biz-btn--ghost svg { width: 26px; height: 26px; color: var(--color-text-primary); }

.biz-btn-label {
    font-size: 0.9375rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.biz-btn-sub {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-muted);
    line-height: 1.2;
    word-break: break-word;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 100%;
}

.biz-btn--whatsapp svg { color: var(--color-whatsapp); }
.biz-btn--telegram svg { color: var(--color-telegram); }

.biz-btn--whatsapp:hover { border-color: rgba(37, 211, 102, 0.5); background: rgba(37, 211, 102, 0.08); }
.biz-btn--telegram:hover { border-color: rgba(34, 158, 217, 0.5); background: rgba(34, 158, 217, 0.08); }

/* Share buttons (3-grid): horizontal layout, smaller */
.biz-card-section--share .biz-btn--ghost {
    flex-direction: row;
    min-height: var(--btn-height-sm);
    gap: 10px;
    padding: 10px 14px;
}

.biz-card-section--share .biz-btn--ghost svg { width: 20px; height: 20px; }
.biz-card-section--share .biz-btn-label { font-size: 0.9375rem; }

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */
.biz-card-section {
    margin-top: 24px;
}

.biz-card-section-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin: 0 0 14px;
    text-align: center;
}

.biz-grid {
    display: grid;
    gap: var(--gap-sm);
}

.biz-grid--4 { grid-template-columns: repeat(2, 1fr); }
.biz-grid--3 { grid-template-columns: 1fr; }

@media (min-width: 480px) {
    .biz-grid--4 { grid-template-columns: repeat(4, 1fr); }
    /* auto-fit handles both 3-button (no Web Share) and 4-button cases gracefully */
    .biz-grid--3 { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
}

/* --------------------------------------------------------------------------
   QR
   -------------------------------------------------------------------------- */
.biz-qr {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.biz-qr-canvas {
    width: 188px;
    height: 188px;
    padding: 12px;
    background: #fff;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.biz-qr-canvas img,
.biz-qr-canvas canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.biz-qr-caption {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin: 0;
    word-break: break-all;
    max-width: 320px;
    text-align: center;
}

/* --------------------------------------------------------------------------
   Extras: LinkedIn link, address
   -------------------------------------------------------------------------- */
.biz-card-extras {
    border-top: 1px solid var(--color-border);
    padding-top: 20px;
    text-align: center;
}

.biz-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    margin-bottom: 8px;
}

.biz-link:hover { color: var(--color-accent); }
.biz-link svg { width: 18px; height: 18px; color: #0A66C2; }

.biz-card-address {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin: 6px 0 0;
    line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Skeleton
   -------------------------------------------------------------------------- */
.card-skeleton {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}

.skeleton-circle {
    width: 132px;
    height: 132px;
    border-radius: 50%;
    background: rgba(148, 163, 184, 0.1);
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.skeleton-line {
    height: 16px;
    border-radius: 8px;
    background: rgba(148, 163, 184, 0.1);
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.skeleton-line--lg { width: 60%; height: 28px; }
.skeleton-line--md { width: 45%; }
.skeleton-line--sm { width: 30%; }

@keyframes skeleton-pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* --------------------------------------------------------------------------
   Toast
   -------------------------------------------------------------------------- */
.toast {
    position: fixed;
    left: 50%;
    bottom: 32px;
    transform: translate(-50%, 16px);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-hover);
    color: var(--color-text-primary);
    font-size: 0.9375rem;
    font-weight: 500;
    padding: 14px 20px;
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 1000;
    max-width: calc(100vw - 32px);
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}

/* --------------------------------------------------------------------------
   Lead gate (cold visitor flow)
   -------------------------------------------------------------------------- */
.lead-gate {
    padding: 0 0 32px;
}

.lead-gate-card {
    max-width: 520px;
    margin: 0 auto;
    background:
        linear-gradient(180deg, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
        var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    padding: 32px 24px 28px;
    text-align: center;
    box-shadow: 0 24px 48px -16px rgba(0, 0, 0, 0.45);
}

@media (min-width: 480px) {
    .lead-gate-card { padding: 36px 32px 32px; }
}

.lead-gate-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    border-radius: 14px;
    background: rgba(59, 130, 246, 0.12);
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lead-gate-icon svg { width: 28px; height: 28px; }

.lead-gate-title {
    font-size: clamp(1.5rem, 4vw, 1.875rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0 0 10px;
}

.lead-gate-subtitle {
    font-size: 1rem;
    line-height: 1.55;
    color: var(--color-text-secondary);
    margin: 0 0 24px;
}

.lead-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
    text-align: left;
}

.lead-form-row {
    display: grid;
    gap: 14px;
    grid-template-columns: 1fr;
}

@media (min-width: 480px) {
    .lead-form-row { grid-template-columns: 1fr 1fr; }
}

.lead-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.lead-field-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    letter-spacing: 0.01em;
}

.lead-field-optional {
    font-weight: 400;
    color: var(--color-text-muted);
}

.lead-field input,
.lead-field textarea {
    width: 100%;
    min-height: 56px;
    padding: 14px 16px;
    background: rgba(148, 163, 184, 0.05);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.4;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.lead-field textarea {
    min-height: 96px;
    resize: vertical;
}

.lead-field input::placeholder,
.lead-field textarea::placeholder {
    color: var(--color-text-muted);
}

.lead-field input:focus,
.lead-field textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(59, 130, 246, 0.06);
}

.lead-field input:focus-visible,
.lead-field textarea:focus-visible {
    outline: 3px solid #60a5fa;
    outline-offset: 2px;
}

.lead-field input[aria-invalid="true"],
.lead-field textarea[aria-invalid="true"] {
    border-color: #f87171;
    background: rgba(248, 113, 113, 0.06);
}

.lead-form-submit {
    margin-top: 6px;
}

.lead-form-submit[disabled] {
    opacity: 0.7;
    cursor: not-allowed;
}

.lead-form-note {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    line-height: 1.5;
    margin: 6px 0 0;
    text-align: center;
}

/* Locked card state — only shown when access is not granted */
.biz-card-locked-hint {
    display: none;
    margin: 8px 0 0;
    padding: 14px 16px;
    background: rgba(148, 163, 184, 0.06);
    border: 1px dashed var(--color-border-hover);
    border-radius: 12px;
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.4;
    text-align: center;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.biz-card-locked-hint svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    vertical-align: -3px;
    margin-right: 6px;
    color: var(--color-text-muted);
}

.biz-card.is-locked .biz-card-locked-hint {
    display: block;
}

/* When locked: hide the parts that contain personal contact data */
.biz-card.is-locked > .biz-btn--primary,
.biz-card.is-locked > .biz-card-section {
    display: none;
}

/* Reveal animation when transitioning from locked → unlocked */
@keyframes biz-card-unlock {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.biz-card.just-unlocked > .biz-btn--primary,
.biz-card.just-unlocked > .biz-card-section {
    animation: biz-card-unlock 0.35s ease both;
}

.biz-card.just-unlocked > .biz-card-section:nth-of-type(2) { animation-delay: 0.05s; }
.biz-card.just-unlocked > .biz-card-section:nth-of-type(3) { animation-delay: 0.1s; }
.biz-card.just-unlocked > .biz-card-section:nth-of-type(4) { animation-delay: 0.15s; }

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .biz-btn,
    .biz-btn--primary,
    .skeleton-circle,
    .skeleton-line,
    .toast,
    .lead-field input,
    .lead-field textarea,
    .biz-card.just-unlocked > .biz-btn--primary,
    .biz-card.just-unlocked > .biz-card-section {
        transition: none;
        animation: none;
    }
}