/* ── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', system-ui, sans-serif;
    color: var(--text);
    background: #fff;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a { color: var(--brand); text-decoration: none; }
ul { list-style: none; }
img, svg { display: block; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ── Variables ─────────────────────────────────────────────────── */
:root {
    --brand:       #1d4ed8;
    --brand-d:     #1e3a8a;
    --brand-l:     #3b82f6;
    --brand-xl:    #60a5fa;
    --brand-bg:    #eff6ff;
    --brand-bg2:   #dbeafe;
    --green:       #059669;
    --green-bg:    #ecfdf5;
    --green-text:  #065f46;
    --teal:        #0d9488;
    --teal-bg:     #f0fdfa;
    --purple:      #7c3aed;
    --purple-bg:   #f5f3ff;
    --amber:       #d97706;
    --amber-bg:    #fffbeb;
    --text:        #0f172a;
    --text-2:      #334155;
    --text-3:      #64748b;
    --text-4:      #94a3b8;
    --surface:     #f8fafc;
    --surface-2:   #f1f5f9;
    --border:      #e2e8f0;
    --border-2:    #cbd5e1;
    --radius:      12px;
    --radius-lg:   20px;
    --radius-xl:   28px;
    --shadow-xs:   0 1px 2px rgba(15,23,42,.05);
    --shadow-sm:   0 1px 3px rgba(15,23,42,.08), 0 1px 2px rgba(15,23,42,.06);
    --shadow:      0 4px 16px rgba(15,23,42,.08);
    --shadow-lg:   0 12px 32px rgba(15,23,42,.12);
    --shadow-xl:   0 24px 48px rgba(15,23,42,.16);
    --max-w:       1200px;
    --py:          88px;
}

h1:focus {
    outline: none;
}

/* ── Typography ────────────────────────────────────────────────── */
h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); font-weight: 800; line-height: 1.15; letter-spacing: -.03em; color: var(--text); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.2; letter-spacing: -.025em; color: var(--text); }
h3 { font-size: 1.125rem; font-weight: 600; line-height: 1.3; color: var(--text); }
p  { color: var(--text-2); }

/* ── Container ─────────────────────────────────────────────────── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 clamp(16px, 5vw, 60px); }

/* ── ICT Logo ──────────────────────────────────────────────────── */
.ict-logo {
    font-family: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', Consolas, monospace;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--brand);
    letter-spacing: -.02em;
}
.ict-logo .lt, .ict-logo .gt { color: var(--brand-l); }
.ict-logo .sl { color: var(--text-3); }

/* ── Buttons ───────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 22px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    transition: all .18s ease;
    white-space: nowrap;
}
.btn-primary {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 1px 3px rgba(29,78,216,.3), 0 4px 12px rgba(29,78,216,.2);
}
.btn-primary:hover { background: #1a44c4; box-shadow: 0 2px 6px rgba(29,78,216,.35), 0 8px 20px rgba(29,78,216,.25); transform: translateY(-1px); color: #fff; }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
    background: #fff;
    color: var(--text);
    border: 1.5px solid var(--border-2);
    box-shadow: var(--shadow-xs);
}
.btn-secondary:hover { border-color: var(--brand-l); color: var(--brand); box-shadow: var(--shadow-sm); transform: translateY(-1px); }

.btn-outline-white {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255,255,255,.5);
}
.btn-outline-white:hover { background: rgba(255,255,255,.1); border-color: #fff; color: #fff; }

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
    border-radius: 10px;
}

/* ── Navigation ────────────────────────────────────────────────── */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 clamp(16px, 5vw, 60px);
    height: 64px;
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text) !important;
    text-decoration: none !important;
    flex-shrink: 0;
}
.nav-product {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -.02em;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
}
.nav-links a {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-3);
    transition: color .15s, background .15s;
}
.nav-links a:hover { color: var(--text); background: var(--surface); }
.nav-cta { margin-left: auto; }
@media (max-width: 700px) {
    .nav-links { display: none; }
    .nav-product { display: none; }
}

/* ── Hero ──────────────────────────────────────────────────────── */
.hero {
    background: linear-gradient(160deg, #fff 0%, #f0f6ff 55%, #e8f1ff 100%);
    padding: clamp(48px, 8vw, 100px) 0 clamp(40px, 7vw, 80px);
    overflow: hidden;
}
.hero-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 clamp(16px, 5vw, 60px);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: var(--brand-bg);
    border: 1px solid var(--brand-bg2);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    color: var(--brand);
    margin-bottom: 20px;
}
.hero h1 { margin-bottom: 20px; }
.hero-accent { color: var(--brand); }
.hero-sub {
    font-size: 1.05rem;
    color: var(--text-3);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 520px;
}
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }

/* Hero terminal mockup */
.hero-visual { position: relative; }
.code-terminal {
    background: #0f172a;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(255,255,255,.1);
}
.terminal-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 14px 16px;
    background: #1e293b;
    border-bottom: 1px solid #334155;
}
.t-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.t-red    { background: #ef4444; }
.t-yellow { background: #f59e0b; }
.t-green  { background: #22c55e; }
.t-file   { margin-left: 8px; font-size: 13px; font-weight: 500; color: #64748b; font-family: monospace; }
.terminal-code {
    padding: 24px 20px;
    font-size: 13.5px;
    line-height: 1.75;
    overflow-x: auto;
}
.terminal-code code {
    font-family: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', Consolas, monospace;
    white-space: pre;
}
.tc-comment { color: #64748b; }
.tc-kw      { color: #93c5fd; }
.tc-fn      { color: #67e8f9; }
.tc-str     { color: #86efac; }
.tc-ok      { color: #4ade80; }
.tc-obj     { color: #fcd34d; }
.tc-key     { color: #c4b5fd; }
.tc-plain   { color: #e2e8f0; }

@media (max-width: 900px) {
    .hero-inner { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { order: -1; }
    .hero-sub { max-width: 100%; }
}

/* ── Standards bar ─────────────────────────────────────────────── */
.standards-bar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 18px 0;
}
.standards-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 clamp(16px, 5vw, 60px);
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}
.std-label { font-size: 13px; font-weight: 600; color: var(--text-4); text-transform: uppercase; letter-spacing: .07em; margin-right: 4px; }
.std-chip {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-2);
    letter-spacing: .02em;
}

/* ── Section base ──────────────────────────────────────────────── */
.section { padding: var(--py) 0; }
.section-alt { background: var(--surface); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header p { margin-top: 12px; font-size: 1.05rem; color: var(--text-3); max-width: 560px; margin-left: auto; margin-right: auto; }
.eyebrow {
    display: inline-block;
    font-size: 12.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--brand);
    margin-bottom: 10px;
}

/* ── Features grid ─────────────────────────────────────────────── */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feat-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: box-shadow .22s, transform .22s, border-color .22s;
}
.feat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
    border-color: var(--brand-bg2);
}
.feat-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    flex-shrink: 0;
}
.feat-icon svg { width: 26px; height: 26px; }
.icon-blue   { background: var(--brand-bg);  color: var(--brand); }
.icon-green  { background: var(--green-bg);  color: var(--green); }
.icon-purple { background: var(--purple-bg); color: var(--purple); }
.feat-card h3 { margin-bottom: 10px; }
.feat-card > p { font-size: 14px; color: var(--text-3); margin-bottom: 20px; line-height: 1.65; }
.feat-list { display: flex; flex-direction: column; gap: 8px; }
.feat-list li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13.5px;
    color: var(--text-2);
}
.feat-list li::before {
    content: '';
    width: 16px; height: 16px;
    border-radius: 50%;
    background: var(--brand-bg);
    border: 1.5px solid var(--brand-bg2);
    flex-shrink: 0;
    margin-top: 1px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2 6l3 3 5-5' stroke='%231d4ed8' stroke-width='1.8' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

@media (max-width: 900px) { .features-grid { grid-template-columns: 1fr; } }
@media (min-width: 600px) and (max-width: 900px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }

/* ── Installation steps ────────────────────────────────────────── */
.install-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 60px;
}
.install-col { display: flex; flex-direction: column; }
.step {
    display: flex;
    gap: 20px;
    padding-bottom: 36px;
    position: relative;
}
.step:not(:last-child)::before {
    content: '';
    position: absolute;
    left: 19px;
    top: 46px;
    bottom: 0;
    width: 2px;
    background: var(--border);
    border-radius: 2px;
}
.step-num {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--brand);
    color: #fff;
    font-weight: 700;
    font-size: 17px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    box-shadow: 0 0 0 4px var(--brand-bg);
}
.step-done .step-num { background: var(--green); box-shadow: 0 0 0 4px var(--green-bg); }
.step-body { padding-top: 8px; }
.step-body h3 { margin-bottom: 6px; font-size: 1rem; }
.step-body p  { font-size: 14px; color: var(--text-3); margin-bottom: 12px; line-height: 1.6; }
.step-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
    font-weight: 600;
    color: var(--brand);
    padding: 6px 14px;
    background: var(--brand-bg);
    border-radius: 6px;
    transition: background .15s;
}
.step-link:hover { background: var(--brand-bg2); text-decoration: none; color: var(--brand-d); }
.step-link svg { width: 14px; height: 14px; }

@media (max-width: 900px) { .install-grid { grid-template-columns: 1fr; gap: 0; } }

/* ── Requirements ──────────────────────────────────────────────── */
.req-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.req-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 20px;
    text-align: center;
}
.req-icon { font-size: 28px; margin-bottom: 8px; }
.req-title { font-size: 13.5px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.req-sub   { font-size: 12.5px; color: var(--text-3); }
@media (max-width: 800px) { .req-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .req-grid { grid-template-columns: 1fr; } }

/* ── API preview ───────────────────────────────────────────────── */
.api-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.api-text .eyebrow { margin-bottom: 10px; }
.api-text h2 { margin-bottom: 16px; }
.api-text p  { margin-bottom: 20px; }
.api-features { display: flex; flex-direction: column; gap: 12px; }
.api-feat {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14.5px;
    color: var(--text-2);
}
.api-feat-icon {
    width: 32px; height: 32px;
    background: var(--brand-bg);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    color: var(--brand);
    font-size: 16px;
}
@media (max-width: 900px) { .api-grid { grid-template-columns: 1fr; } }

/* ── Download CTA ──────────────────────────────────────────────── */
.download-cta {
    background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 60%, #2563eb 100%);
    padding: var(--py) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.download-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(96,165,250,.2) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 50%, rgba(167,139,250,.15) 0%, transparent 60%);
    pointer-events: none;
}
.download-cta .eyebrow { color: rgba(255,255,255,.7); }
.download-cta h2 { color: #fff; margin-bottom: 14px; }
.download-cta p  { color: rgba(255,255,255,.75); margin-bottom: 36px; font-size: 1.05rem; }
.download-btns   { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-white {
    background: #fff;
    color: var(--brand-d);
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(0,0,0,.15);
}
.btn-white:hover { background: #f0f6ff; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,0,0,.2); color: var(--brand-d); }
.download-note { margin-top: 20px; font-size: 13px; color: rgba(255,255,255,.55); }

/* ── Test section ──────────────────────────────────────────────── */
.test-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    display: flex;
    align-items: center;
    gap: 40px;
    max-width: 860px;
    margin: 0 auto;
    box-shadow: var(--shadow);
}
.test-icon {
    width: 72px; height: 72px;
    background: var(--green-bg);
    border-radius: 20px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    color: var(--green);
}
.test-icon svg { width: 36px; height: 36px; }
.test-content h3 { font-size: 1.25rem; margin-bottom: 8px; }
.test-content p  { font-size: 15px; color: var(--text-3); margin-bottom: 16px; }
.test-url {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: monospace;
    font-size: 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 5px 12px;
    color: var(--text-2);
    margin-bottom: 16px;
}
@media (max-width: 700px) {
    .test-card { flex-direction: column; text-align: center; padding: 32px 24px; gap: 24px; }
}

/* ── About ─────────────────────────────────────────────────────── */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-logo-big {
    font-family: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', Consolas, monospace;
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--brand);
    letter-spacing: -.02em;
    line-height: 1;
    margin-bottom: 20px;
}
.about-logo-big .lt, .about-logo-big .gt { color: var(--brand-l); opacity: .7; }
.about-logo-big .sl { color: var(--text-3); }
.about-lead { font-size: 1.05rem; color: var(--text-2); margin-bottom: 16px; line-height: 1.7; }
.about-note { font-size: 14px; color: var(--text-3); }
.about-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 13px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-2);
}
.about-image {
    background: linear-gradient(135deg, var(--brand-bg) 0%, var(--purple-bg) 100%);
    border-radius: var(--radius-xl);
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.about-stat {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px 24px;
    box-shadow: var(--shadow-sm);
}
.about-stat-val { font-size: 1.75rem; font-weight: 800; color: var(--brand); letter-spacing: -.03em; }
.about-stat-label { font-size: 13px; color: var(--text-3); margin-top: 2px; }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; } }

/* ── Feedback ──────────────────────────────────────────────────── */
.feedback-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}
.feedback-info h2 { margin-bottom: 12px; }
.feedback-info > p { margin-bottom: 24px; }
.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 10px;
    transition: border-color .15s, box-shadow .15s;
}
.contact-item:hover { border-color: var(--brand-l); box-shadow: var(--shadow-sm); }
.contact-item a { color: var(--text); font-size: 14.5px; font-weight: 500; }
.contact-item a:hover { color: var(--brand); }
.contact-icon {
    width: 36px; height: 36px;
    background: var(--brand-bg);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    color: var(--brand);
    font-size: 17px;
}
.feedback-form {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    box-shadow: var(--shadow);
}
.feedback-form h3 { margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-group { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--text-2); }
.form-input, .form-textarea {
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 14.5px;
    font-family: inherit;
    color: var(--text);
    background: #fff;
    transition: border-color .15s, box-shadow .15s;
    outline: none;
    width: 100%;
}
.form-input:focus, .form-textarea:focus {
    border-color: var(--brand-l);
    box-shadow: 0 0 0 3px rgba(59,130,246,.12);
}
.form-textarea { resize: vertical; min-height: 110px; }
.form-submit { width: 100%; padding: 12px; margin-top: 4px; font-size: 15px; }
@media (max-width: 900px) { .feedback-grid { grid-template-columns: 1fr; } }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

/* ── Feedback form states ──────────────────────────────────────── */
.req-mark    { color: #dc2626; margin-left: 2px; }
.field-error { font-size: 12.5px; color: #dc2626; margin-top: 4px; display: block; }
.input-invalid { border-color: #fca5a5 !important; background: #fff5f5; }
.input-invalid:focus { border-color: #f87171 !important; box-shadow: 0 0 0 3px rgba(239,68,68,.12) !important; }
.form-error-msg {
    padding: 12px 14px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    color: #991b1b;
    font-size: 14px;
    margin-bottom: 14px;
    line-height: 1.5;
}

/* ── Captcha ────────────────────────────────────────────────────── */
.captcha-widget {
    background: var(--surface);
    border: 1.5px solid var(--border-2);
    border-radius: var(--radius);
    padding: 16px 18px;
    margin-bottom: 16px;
    transition: border-color .15s;
}
.captcha-widget.captcha-error { border-color: #fca5a5; background: #fff5f5; }
.captcha-header {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--text-3);
    margin-bottom: 14px;
}
.captcha-body { display: flex; flex-direction: column; gap: 10px; }
.captcha-expr {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: 'Georgia', 'Palatino Linotype', 'Book Antiqua', serif;
    font-style: italic;
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: .12em;
    color: var(--text);
    background: #fff;
    padding: 10px 22px;
    border-radius: 8px;
    border: 1px solid var(--border);
    user-select: none;
    width: fit-content;
    box-shadow: inset 0 1px 3px rgba(0,0,0,.06);
}
.captcha-input-row  { display: flex; gap: 8px; align-items: center; }
.captcha-input      { max-width: 100px; text-align: center; font-size: 16px; font-weight: 600; }
.captcha-refresh {
    width: 38px; height: 38px; flex-shrink: 0;
    border: 1.5px solid var(--border-2);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-3);
    background: #fff;
    cursor: pointer;
    transition: color .15s, border-color .15s, background .15s;
}
.captcha-refresh:hover { color: var(--brand); border-color: var(--brand-l); background: var(--brand-bg); }

/* ── Form success ───────────────────────────────────────────────── */
.form-success-card {
    background: var(--green-bg);
    border: 1.5px solid #a7f3d0;
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}
.fsc-icon {
    width: 56px; height: 56px;
    background: var(--green);
    color: #fff;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 4px;
}
.fsc-title { font-size: 1.25rem; font-weight: 700; color: var(--green-text); }
.fsc-text  { font-size: 14.5px; color: #065f46; }

/* ── Submit spinner ─────────────────────────────────────────────── */
.btn-spinner {
    width: 16px; height: 16px;
    border: 2.5px solid rgba(255,255,255,.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .7s linear infinite;
    flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Footer ────────────────────────────────────────────────────── */
.footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 48px 0 32px;
}
.footer-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 clamp(16px, 5vw, 60px);
}
.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 36px;
    border-bottom: 1px solid #1e293b;
    margin-bottom: 28px;
}
.footer-brand .ict-logo { font-size: 1.1rem; }
.footer-brand .ict-logo .lt, .footer-brand .ict-logo .gt { color: #60a5fa; }
.footer-brand .ict-logo .sl { color: #475569; }
.footer-tagline { font-size: 13.5px; color: #64748b; margin-top: 8px; line-height: 1.6; max-width: 220px; }
.footer-col h4 { font-size: 13px; font-weight: 700; color: #e2e8f0; text-transform: uppercase; letter-spacing: .07em; margin-bottom: 12px; }
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col a { font-size: 14px; color: #64748b; transition: color .15s; }
.footer-col a:hover { color: #e2e8f0; }
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: #475569;
}
@media (max-width: 800px) {
    .footer-top { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
    .footer-top { grid-template-columns: 1fr; }
}