/* ═══════════════════════════════════════════════════
   OilChain Registry — style.css
   Theme: Industrial Dark · Oil & Gas
   ═════════════════════════════════════════════════ */

/* ── Variables ──────────────────────────────────── */
:root {
    --bg-deep:      #0a0e1a;
    --bg-dark:      #0d1220;
    --bg-panel:     #111827;
    --bg-card:      #1a2236;
    --bg-input:     #0f1829;

    --accent-gold:  #f59e0b;
    --accent-amber: #d97706;
    --accent-blue:  #3b82f6;
    --accent-cyan:  #06b6d4;
    --accent-green: #10b981;
    --accent-red:   #ef4444;
    --accent-orange:#f97316;

    --text-primary: #f1f5f9;
    --text-second:  #94a3b8;
    --text-muted:   #475569;
    --text-dim:     #334155;

    --border:       rgba(255,255,255,0.07);
    --border-bright:rgba(255,255,255,0.13);

    --gold-glow:    0 0 20px rgba(245,158,11,0.3);
    --blue-glow:    0 0 20px rgba(59,130,246,0.3);

    --radius:       12px;
    --radius-sm:    8px;
    --radius-lg:    16px;

    --font-main:    'Syne', sans-serif;
    --font-mono:    'JetBrains Mono', monospace;
}

/* ── Reset & Base ───────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html { scroll-behavior: smooth; }

body {
    background-color: var(--bg-deep);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 15px;
    line-height: 1.6;
    min-height: 100vh;
}

img { max-width: 100%; }
a { text-decoration: none; color: inherit; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.hidden { display: none !important; }

/* ── Scrollbar ──────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--text-dim); border-radius: 3px; }

/* ══════════════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════════════ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
    color: #0a0e1a;
    box-shadow: var(--gold-glow);
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 30px rgba(245,158,11,0.5);
}
.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-verify {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    color: #fff;
    box-shadow: var(--blue-glow);
}
.btn-verify:hover { transform: translateY(-1px); box-shadow: 0 0 30px rgba(59,130,246,0.5); }
.btn-verify:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-bright);
    color: var(--text-second);
}
.btn-outline:hover { border-color: var(--accent-gold); color: var(--accent-gold); }

.btn-outline-light {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.25);
    color: rgba(255,255,255,0.8);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s;
}
.btn-outline-light:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.5); }

.btn-danger {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    color: #fff;
}
.btn-danger:hover { transform: translateY(-1px); box-shadow: 0 0 15px rgba(239,68,68,0.4); }

.btn-full { width: 100%; justify-content: center; padding: 14px; font-size: 15px; }

.btn-sm { padding: 6px 12px; font-size: 12px; }

.btn-icon { font-size: 16px; }

/* ══════════════════════════════════════════════════
   SITE HEADER
══════════════════════════════════════════════════ */
.site-header {
    position: relative;
    background: linear-gradient(135deg, #050810 0%, #0d1220 40%, #111827 100%);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
    padding: 28px 0;
}

.header-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(245,158,11,0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 50%, rgba(59,130,246,0.06) 0%, transparent 60%);
    pointer-events: none;
}

.header-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

.header-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-symbol {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(245,158,11,0.15), rgba(245,158,11,0.05));
    border: 1px solid rgba(245,158,11,0.3);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    box-shadow: var(--gold-glow);
}

.site-title {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
    line-height: 1.1;
}

.site-subtitle {
    font-size: 12px;
    color: var(--accent-gold);
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 3px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.chain-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-green);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.chain-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: pulse 2s infinite;
    box-shadow: 0 0 8px var(--accent-green);
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.8); }
}

/* ══════════════════════════════════════════════════
   STATS BAR
══════════════════════════════════════════════════ */
.stats-bar {
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
    padding: 0;
}

.stats-bar-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 32px;
}

.stat-icon { font-size: 20px; }

.stat-val {
    font-size: 18px;
    font-weight: 800;
    color: var(--accent-gold);
    font-family: var(--font-mono);
    line-height: 1;
}

.stat-lbl {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 3px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

/* ══════════════════════════════════════════════════
   MAIN CONTENT
══════════════════════════════════════════════════ */
.main-content {
    padding: 48px 0;
}

.dual-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}

/* ── Panels ─────────────────────────────────────── */
.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    overflow: hidden;
}

.panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
}

.panel-register::before {
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber));
}

.panel-verify::before {
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
}

.panel-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 28px;
}

.panel-icon {
    font-size: 28px;
    width: 52px;
    height: 52px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.panel-header h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.panel-header p {
    font-size: 13px;
    color: var(--text-second);
}

/* ── Form Elements ──────────────────────────────── */
.asset-form { display: flex; flex-direction: column; gap: 18px; }

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-second);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input,
.form-group select {
    background: var(--bg-input);
    border: 1px solid var(--border-bright);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 14px;
    padding: 12px 16px;
    transition: border-color 0.2s, box-shadow 0.2s;
    width: 100%;
    -webkit-appearance: none;
}

.form-group input::placeholder { color: var(--text-muted); }

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(245,158,11,0.1);
}

.form-group select option {
    background: var(--bg-panel);
    color: var(--text-primary);
}

.input-with-badge {
    position: relative;
}

.input-with-badge input {
    padding-right: 72px;
}

.input-badge {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--accent-gold);
    background: rgba(245,158,11,0.1);
    border: 1px solid rgba(245,158,11,0.2);
    padding: 2px 6px;
    border-radius: 4px;
    pointer-events: none;
}

/* ── Result Boxes ───────────────────────────────── */
.result-box {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    border-radius: var(--radius-sm);
    margin-top: 16px;
    font-size: 13px;
    line-height: 1.5;
}

.result-box strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 2px;
}

.result-box p { color: var(--text-second); }

.result-icon { font-size: 20px; flex-shrink: 0; }

.result-success {
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.25);
    color: #34d399;
}
.result-success strong { color: #34d399; }

.result-error {
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.25);
    color: #f87171;
}
.result-error strong { color: #f87171; }

/* ── Hash Display ───────────────────────────────── */
.hash-display {
    margin-top: 16px;
    background: rgba(6,182,212,0.05);
    border: 1px solid rgba(6,182,212,0.2);
    border-radius: var(--radius-sm);
    padding: 16px;
}

.hash-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent-cyan);
    margin-bottom: 8px;
}

.hash-value {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-second);
    word-break: break-all;
    line-height: 1.6;
}

/* ── Status Badges (verify) ─────────────────────── */
.status-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 14px;
    margin-top: 16px;
    letter-spacing: 0.5px;
}

.status-valid {
    background: rgba(16,185,129,0.12);
    border: 1px solid rgba(16,185,129,0.3);
    color: #34d399;
    box-shadow: 0 0 16px rgba(16,185,129,0.15);
}

.status-tampered {
    background: rgba(239,68,68,0.12);
    border: 1px solid rgba(239,68,68,0.35);
    color: #f87171;
    box-shadow: 0 0 16px rgba(239,68,68,0.2);
    animation: tamper-flash 0.6s ease;
}

@keyframes tamper-flash {
    0%, 100% { opacity: 1; }
    25%, 75% { opacity: 0.7; }
    50% { opacity: 1; }
}

.status-notfound {
    background: rgba(245,158,11,0.08);
    border: 1px solid rgba(245,158,11,0.2);
    color: var(--accent-gold);
}

.status-error {
    background: rgba(239,68,68,0.08);
    border: 1px solid rgba(239,68,68,0.2);
    color: #f87171;
}

/* ── Asset Card ─────────────────────────────────── */
.asset-card {
    margin-top: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-bright);
    border-radius: var(--radius);
    overflow: hidden;
    animation: slide-up 0.3s ease;
}

@keyframes slide-up {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.card-tampered {
    border-color: rgba(239,68,68,0.3);
    box-shadow: 0 0 20px rgba(239,68,68,0.1);
}

.asset-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
}

.asset-card-header h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.asset-card-body {
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.detail-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    font-size: 13px;
}

.detail-label {
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    white-space: nowrap;
    flex-shrink: 0;
    padding-top: 1px;
}

.detail-value {
    color: var(--text-primary);
    text-align: right;
    word-break: break-word;
}

.detail-value.mono {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent-cyan);
}

.asset-card-hash {
    background: rgba(6,182,212,0.05);
    border-top: 1px solid var(--border);
    padding: 14px 20px;
}

/* ── Type Badge ─────────────────────────────────── */
.type-badge {
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 1px;
    flex-shrink: 0;
}

.type-pipeline { background: rgba(245,158,11,0.15); color: var(--accent-gold); border: 1px solid rgba(245,158,11,0.25); }
.type-equipment { background: rgba(59,130,246,0.15); color: #60a5fa; border: 1px solid rgba(59,130,246,0.25); }
.type-license { background: rgba(16,185,129,0.15); color: #34d399; border: 1px solid rgba(16,185,129,0.25); }

/* ── Verify Note ────────────────────────────────── */
.verify-note {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-top: 20px;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ══════════════════════════════════════════════════
   HOW IT WORKS
══════════════════════════════════════════════════ */
.how-it-works {
    background: var(--bg-dark);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 60px 0;
}

.section-heading {
    font-size: 22px;
    font-weight: 700;
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 40px;
}

.steps-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
}

.step-card {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    max-width: 210px;
    text-align: center;
    transition: border-color 0.2s;
}

.step-card:hover {
    border-color: rgba(245,158,11,0.25);
}

.step-num {
    font-size: 28px;
    font-weight: 800;
    color: var(--accent-gold);
    font-family: var(--font-mono);
    margin-bottom: 12px;
    opacity: 0.6;
}

.step-card h3 {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.step-card p {
    font-size: 12px;
    color: var(--text-second);
    line-height: 1.5;
}

.step-arrow {
    font-size: 20px;
    color: var(--text-dim);
    padding: 0 8px;
    flex-shrink: 0;
}

/* ══════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════ */
.site-footer {
    background: var(--bg-deep);
    padding: 40px 0;
}

.footer-inner {
    text-align: center;
}

.footer-brand {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.site-footer p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.footer-tech {
    font-family: var(--font-mono);
    font-size: 11px !important;
    color: var(--text-dim) !important;
    margin-top: 8px;
}


/* ══════════════════════════════════════════════════
   LOGIN PAGE
══════════════════════════════════════════════════ */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(245,158,11,0.06) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 50%, rgba(59,130,246,0.04) 0%, transparent 60%),
        var(--bg-deep);
}

.login-wrapper {
    width: 100%;
    max-width: 420px;
    padding: 24px;
}

.login-box {
    background: var(--bg-panel);
    border: 1px solid var(--border-bright);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.logo-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.login-logo h1 {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
}

.login-logo p {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.login-box .form-group {
    margin-bottom: 18px;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 13px;
}

.login-footer a {
    color: var(--text-muted);
    transition: color 0.2s;
}

.login-footer a:hover { color: var(--accent-gold); }

/* ── Alerts ─────────────────────────────────────── */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 20px;
    font-weight: 500;
}

.alert-error {
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.25);
    color: #f87171;
}

.alert-success {
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.25);
    color: #34d399;
}


/* ══════════════════════════════════════════════════
   ADMIN PAGE
══════════════════════════════════════════════════ */
.admin-page {
    background: var(--bg-deep);
}

.admin-header {
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-icon { font-size: 24px; }

.header-brand h1 {
    font-size: 18px;
    font-weight: 700;
}

.header-brand p {
    font-size: 11px;
    color: var(--accent-gold);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.admin-nav {
    display: flex;
    align-items: center;
    gap: 12px;
}

.admin-user {
    font-size: 13px;
    color: var(--text-second);
}

.admin-main {
    max-width: 1300px;
    margin: 0 auto;
    padding: 32px 24px;
}

/* ── Stats Grid (Admin) ─────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--accent-gold);
    font-family: var(--font-mono);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ── Admin Sections ─────────────────────────────── */
.admin-section {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 28px;
}

.section-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
}

.settings-form .form-row {
    display: flex;
    gap: 16px;
    align-items: flex-end;
}

.settings-form .form-group { flex: 1; }

.form-group-btn { flex: 0 !important; }

/* ── Assets Table ───────────────────────────────── */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-sm);
}

.assets-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.assets-table th {
    background: var(--bg-card);
    padding: 12px 16px;
    text-align: left;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    white-space: nowrap;
    border-bottom: 1px solid var(--border);
}

.assets-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
    color: var(--text-second);
}

.assets-table tr:last-child td { border-bottom: none; }
.assets-table tbody tr:hover td { background: rgba(255,255,255,0.02); }

.asset-id-code {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent-cyan);
    background: rgba(6,182,212,0.08);
    padding: 2px 8px;
    border-radius: 4px;
}

.hash-code {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    cursor: help;
}

/* ── Admin Badges ───────────────────────────────── */
.badge {
    font-size: 10px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.badge-pipeline { background: rgba(245,158,11,0.15); color: var(--accent-gold); }
.badge-equipment { background: rgba(59,130,246,0.15); color: #60a5fa; }
.badge-license { background: rgba(16,185,129,0.15); color: #34d399; }

.empty-state {
    text-align: center;
    padding: 48px;
    color: var(--text-muted);
    font-size: 14px;
}

/* ══════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════ */
@media (max-width: 900px) {
    .dual-panel {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .steps-grid {
        flex-direction: column;
        align-items: center;
    }
    .step-arrow { transform: rotate(90deg); }
    .settings-form .form-row { flex-direction: column; }
}

@media (max-width: 600px) {
    .site-title { font-size: 20px; }
    .stats-bar-inner { flex-direction: column; gap: 0; }
    .stat-divider { width: 100%; height: 1px; }
    .stat-item { padding: 14px 24px; }
    .header-content { flex-direction: column; align-items: flex-start; gap: 12px; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .panel { padding: 20px; }
    .admin-nav { flex-wrap: wrap; gap: 8px; }
    .chain-indicator { display: none; }
}