* {
    box-sizing: border-box;
}

:root {
    --bg-1: #0b1020;
    --bg-2: #0f172a;
    --panel: rgba(18, 26, 47, 0.94);
    --panel-soft: rgba(255, 255, 255, 0.03);
    --border: #24304f;
    --border-strong: #324260;
    --text: #e8edf7;
    --muted: #9fb0d0;
    --accent: #5eead4;
    --accent-dark: #062126;
    --danger: #ef4444;
    --danger-dark: #7f1d1d;
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 24px;
    font-family: Arial, sans-serif;
    background: linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 100%);
    color: var(--text);
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.wrap {
    max-width: 1060px;
    margin: 0 auto;
}

.hero,
.panel,
.card,
.feature,
.note,
.info-box,
.error-box,
.output,
.faq-item {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
}

.hero {
    padding: 42px 28px;
    margin-bottom: 18px;
    text-align: center;
}

.hero h1 {
    margin: 0 0 14px;
    font-size: 42px;
    line-height: 1.15;
}

.hero p {
    max-width: 760px;
    margin: 0 auto;
    color: var(--muted);
    font-size: 18px;
    line-height: 1.6;
}

.nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 18px;
    padding: 18px 22px;
}

.brand {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
}

.nav-links {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    align-items: center;
}

.panel {
    padding: 24px;
    margin-bottom: 18px;
}

.section-title {
    margin: 0 0 14px;
    font-size: 28px;
}

.section-text {
    margin: 0;
    color: var(--muted);
    line-height: 1.65;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 18px;
}

.feature {
    padding: 18px;
}

.feature h3 {
    margin: 0 0 10px;
    font-size: 18px;
}

.feature p {
    margin: 0;
    color: var(--muted);
    line-height: 1.55;
}

.steps {
    margin: 0;
    padding-left: 22px;
    color: var(--muted);
    line-height: 1.8;
}

.note,
.info-box,
.error-box,
.output,
.faq-item {
    padding: 14px 16px;
    margin-bottom: 14px;
}

.error-box {
    border-color: rgba(239, 68, 68, 0.45);
    color: #fecaca;
}

.info-box strong {
    color: var(--text);
}

.output {
    min-height: 180px;
    white-space: pre-wrap;
    overflow-wrap: break-word;
}

textarea,
input[type="password"],
input[type="text"] {
    width: 100%;
    display: block;
    padding: 14px 16px;
    font-size: 16px;
    color: var(--text);
    background: rgba(8, 13, 24, 0.78);
    border: 1px solid var(--border-strong);
    border-radius: 14px;
    outline: none;
    font-family: Arial, sans-serif;
}

textarea {
    min-height: 220px;
    resize: vertical;
    margin-bottom: 12px;
}

textarea:focus,
input[type="password"]:focus,
input[type="text"]:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(94, 234, 212, 0.12);
}

.actions,
.copy-row,
.topbar-actions,
.inline-form {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.copy-row input {
    flex: 1 1 420px;
}

button,
.button-link {
    display: inline-block;
    border: 0;
    border-radius: 14px;
    padding: 13px 18px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    background: var(--accent);
    color: var(--accent-dark);
    text-decoration: none;
}

button:hover,
.button-link:hover {
    opacity: 0.95;
    text-decoration: none;
}

button:disabled {
    opacity: 0.6;
    cursor: default;
}

.button-muted {
    background: #22314f;
    color: #dbe7ff;
}

.button-danger {
    background: var(--danger);
    color: #fff;
}

.status {
    margin-top: 12px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.5;
}

.small-text {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.55;
}

.topbar {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

.cards-list .card {
    padding: 18px;
    margin-bottom: 14px;
}

.card h2 {
    margin: 0 0 10px;
    font-size: 20px;
}

.meta {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.6;
}

.card-content {
    margin-top: 12px;
    padding: 14px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
    white-space: pre-wrap;
    overflow-wrap: break-word;
}

.footer {
    text-align: center;
    color: var(--muted);
    font-size: 14px;
    margin-top: 24px;
    padding: 14px 0 6px;
}

.search-input {
    max-width: 420px;
    margin-bottom: 16px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 22px;
}

.badge {
    display: inline-block;
    padding: 7px 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 14px;
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 16px;
}

.faq-item h3 {
    margin: 0 0 8px;
    font-size: 17px;
}

.faq-item p {
    margin: 0;
    color: var(--muted);
    line-height: 1.6;
}

.hidden {
    display: none !important;
}

@media (max-width: 860px) {
    .grid-3,
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 32px;
    }

    body {
        padding: 16px;
    }

    .hero,
    .panel {
        padding: 22px 18px;
    }
}