/**
 * নিব্রাস ভি২ — যোগাযোগ ফরম (Contact form)
 * Ported 1:1 from the e-school-panel contact form so it looks exactly the same:
 * soft gradient accents, no hard borders, live 11-digit mobile counter.
 */

.nb-contact-section {
    --nb-contact-color: #1a73e8;
    --nb-contact-color-light: rgba(26,115,232,0.08);
    --nb-contact-color-mid: rgba(26,115,232,0.15);
    --nb-contact-gradient: linear-gradient(135deg, var(--nb-contact-color) 0%, #4285f4 100%);
    --nb-contact-radius: 10px;
    --nb-contact-radius-sm: 8px;
    --nb-contact-shadow: 0 2px 16px rgba(0,0,0,0.05);
    font-family: inherit;
    max-width: 700px;
    margin: 0 auto;
    padding: 36px 20px;
}
@supports (color: color-mix(in srgb, red 50%, blue)) {
    .nb-contact-section {
        --nb-contact-color-light: color-mix(in srgb, var(--nb-contact-color) 8%, transparent);
        --nb-contact-color-mid: color-mix(in srgb, var(--nb-contact-color) 15%, transparent);
    }
}

/* ── Section title — centred, gradient underline ───────────────────────── */
.nb-contact-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--nb-contact-color);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 24px auto 30px;
    padding-bottom: 16px;
    position: relative;
    display: table;
    width: auto;
}
.nb-contact-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: -1px;
    right: -1px;
    height: 3px;
    border-radius: 2px;
    background: var(--nb-contact-gradient);
    opacity: 0.8;
}
.nb-contact-title::before {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 280px;
    height: 28px;
    background: radial-gradient(ellipse at center, var(--nb-contact-color-light) 0%, transparent 70%);
    pointer-events: none;
}

/* ── Form card ─────────────────────────────────────────────────────────── */
.nb-contact-form {
    background: #fff;
    padding: 28px;
    border-radius: var(--nb-contact-radius);
    box-shadow: var(--nb-contact-shadow);
}
/* Honeypot — hidden from people, visible to naive bots. */
.nb-contact-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.nb-contact-fields { margin-bottom: 24px; }
.nb-contact-group { margin-bottom: 12px; }
.nb-contact-group label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: #374151;
    margin-bottom: 7px;
    letter-spacing: 0.2px;
}
.nb-required { color: #dc2626; }
.nb-contact-input, .nb-contact-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid #e5e7eb;
    border-radius: var(--nb-contact-radius-sm);
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
    background: #fafbfc;
    box-sizing: border-box;
}
.nb-contact-input:focus, .nb-contact-textarea:focus {
    outline: none;
    border-color: var(--nb-contact-color);
    box-shadow: 0 0 0 3px var(--nb-contact-color-light);
    background: #fff;
}
.nb-contact-textarea { resize: vertical; }

/* ── Phone number input with the live digit counter ────────────────────── */
.nb-phone-wrap {
    position: relative;
    display: flex;
    align-items: center;
}
.nb-phone-wrap .nb-phone-input {
    padding-right: 46px;
    letter-spacing: 0.5px;
}
.nb-phone-count {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: #dc2626;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    transition: background-color 0.2s ease, transform 0.15s ease;
    pointer-events: none;
    font-family: inherit;
}
.nb-phone-count.nb-phone-count-ok {
    background: #4ade80;
    color: #064e3b;
}
.nb-phone-hint {
    margin: 6px 0 0;
    font-size: 12px;
    color: #6b7280;
}
.nb-phone-input.nb-phone-invalid {
    border-color: #dc2626 !important;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.12) !important;
}

/* ── Submit button ─────────────────────────────────────────────────────── */
.nb-contact-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 28px;
    border: none;
    border-radius: var(--nb-contact-radius-sm);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.25s cubic-bezier(.4,0,.2,1);
    text-decoration: none;
    letter-spacing: 0.3px;
    background: linear-gradient(135deg, #1a73e8 0%, #4285f4 100%);
    color: #fff;
    box-shadow: 0 3px 12px rgba(26,115,232,0.22);
}
.nb-contact-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(26,115,232,0.32); }
.nb-contact-btn:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(26,115,232,0.2); }
.nb-contact-btn[disabled] { opacity: .7; cursor: progress; transform: none; }
.nb-contact-submit { margin-top: 20px; }

/* ── Result box ────────────────────────────────────────────────────────── */
.nb-contact-result {
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    padding: 24px;
    border-radius: var(--nb-contact-radius);
    margin-top: 20px;
    box-shadow: var(--nb-contact-shadow);
}
.nb-contact-result .nb-contact-ok {
    color: #2e7d32;
    margin: 0 0 8px;
    font-size: 18px;
    font-weight: 700;
}
.nb-contact-result .nb-contact-note { color: #666; font-size: 14px; margin: 0; }
.nb-contact-result .nb-contact-err { color: #b3261e; margin: 0; font-weight: 600; }

/* ── The contact page itself ───────────────────────────────────────────── */
.nb-contact-page { max-width: 880px; margin: 0 auto; padding: 8px 0 56px; }
.nb-contact-page h1 { margin: 0 0 6px; }
.nb-contact-page .nb-contact-lead {
    font-size: 18px;
    color: var(--nb-heading);
    margin: 0 0 10px;
}
.nb-contact-page .nb-contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
    margin: 18px 0 4px;
}
.nb-contact-page .nb-contact-info div {
    padding: 14px 16px;
    border: 1px solid #ECEEF1;
    border-radius: 12px;
    background: var(--nb-soft);
    font-size: 14px;
}
.nb-contact-page .nb-contact-info strong { display: block; color: var(--nb-heading); margin-bottom: 4px; }
.nb-contact-page .nb-contact-info a { color: var(--nb-primary); font-weight: 600; }

@media (max-width: 600px) {
    .nb-contact-form { padding: 20px 16px; }
    .nb-contact-section { padding: 24px 4px; }
    .nb-contact-title { font-size: 21px; }
}