*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #fafaf9;
    --fg: #1c1917;
    --muted: #78716c;
    --border: #d6d3d1;
    --accent: #292524;
    --accent-hover: #44403c;
    --error: #dc2626;
    --card-bg: #ffffff;
    --radius: 6px;
}

body {
    font-family: "SF Mono", "Cascadia Code", "Fira Code", "Menlo", monospace;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Landing */

.landing {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Landing nav */

.landing-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
}

.landing-nav-logo {
    font-size: 1.1rem;
    user-select: none;
}

.landing-nav-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    min-height: 36px;
    font-size: 0.8rem;
}

/* Hero */

.hero {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 3rem 1.25rem 2.5rem;
}

.hero-content {
    max-width: 540px;
}

.logo {
    font-size: clamp(2.5rem, 10vw, 4.5rem);
    margin-bottom: 1rem;
    line-height: 1;
    user-select: none;
}

.hero h1 {
    font-size: clamp(1.3rem, 4vw, 1.75rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.tagline {
    color: var(--muted);
    font-size: clamp(0.85rem, 2.5vw, 1rem);
    line-height: 1.5;
    margin-bottom: 1.75rem;
}

.cta {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
    max-width: 280px;
    margin: 0 auto;
}

.cta .btn {
    width: 100%;
    text-align: center;
}

.hero-note {
    color: var(--muted);
    font-size: 0.75rem;
    margin-top: 1.25rem;
}

/* Features */

.features {
    padding: 2.5rem 1.25rem;
    border-top: 1px solid var(--border);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: 720px;
    margin: 0 auto;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
}

.feature-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.feature-card h3 {
    font-size: 0.9rem;
    margin-bottom: 0.35rem;
}

.feature-card p {
    color: var(--muted);
    font-size: 0.8rem;
    line-height: 1.5;
}

.feature-card code {
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    font-size: 0.75rem;
}

/* How it works */

.how-it-works {
    padding: 2.5rem 1.25rem;
    border-top: 1px solid var(--border);
}

.how-it-works h2 {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 1.75rem;
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    max-width: 480px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.step-num {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background: var(--accent);
    color: var(--bg);
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 600;
}

.step-text h4 {
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
}

.step-text p {
    color: var(--muted);
    font-size: 0.8rem;
    line-height: 1.5;
}

.step-text code {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    font-size: 0.75rem;
}

/* Landing footer */

.landing-footer {
    margin-top: auto;
    padding: 2rem 1.25rem;
    text-align: center;
    color: var(--muted);
    font-size: 0.75rem;
    border-top: 1px solid var(--border);
}

/* Nav */

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
}

.nav-logo {
    text-decoration: none;
    color: var(--fg);
    font-size: 1.25rem;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-email {
    color: var(--muted);
    font-size: 0.85rem;
}

/* Buttons */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    min-height: 44px;
    background: var(--accent);
    color: var(--bg);
    text-decoration: none;
    border-radius: var(--radius);
    font-size: 0.85rem;
    font-family: inherit;
    border: 1px solid var(--accent);
    cursor: pointer;
    transition: background 0.15s;
}

.btn:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--card-bg);
    border-color: var(--muted);
}

.btn-link {
    background: none;
    border: none;
    color: var(--muted);
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    text-decoration: underline;
    padding: 0;
}

.btn-link:hover {
    color: var(--fg);
}

.inline {
    display: inline;
}

/* Forms */

.page {
    min-height: 100vh;
}

.form-container {
    max-width: 380px;
    margin: 4rem auto;
    padding: 0 1.5rem;
}

.form-container h1 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.form-subtitle {
    color: var(--muted);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    margin-top: 1rem;
}

input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 0.75rem;
    min-height: 44px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    background: var(--card-bg);
    color: var(--fg);
    -webkit-appearance: none;
}

input:focus {
    outline: none;
    border-color: var(--accent);
}

small {
    display: block;
    color: var(--muted);
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

.form-container .btn {
    width: 100%;
    margin-top: 1.5rem;
    text-align: center;
}

.form-footer {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--muted);
    font-size: 0.8rem;
}

.form-footer a {
    color: var(--fg);
}

.error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: var(--error);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

/* Dashboard */

.dashboard {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
}

.dashboard h1 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.dashboard-subtitle {
    color: var(--muted);
    font-size: 0.85rem;
    margin-bottom: 2rem;
}

.projects {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
}

.project-card.placeholder {
    opacity: 0.6;
}

/* Dashboard sections */

.dash-section {
    margin-bottom: 2rem;
}

.dash-section h2 {
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.section-header h2 {
    margin-bottom: 0;
}

.badge {
    display: inline-block;
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-weight: 600;
}

.badge-active {
    background: #dcfce7;
    color: #166534;
}

/* Quick connect */

.quick-connect-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}

.quick-connect-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
}

.qc-slug {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.15rem;
}

.qc-url {
    color: var(--muted);
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
}

.qc-cmd code {
    display: block;
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 0.4rem 0.6rem;
    border-radius: 3px;
    font-size: 0.75rem;
    color: var(--fg);
}

.empty-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
}

.empty-card p {
    color: var(--muted);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.empty-card code {
    display: inline-block;
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 0.3rem 0.6rem;
    border-radius: 3px;
    font-size: 0.8rem;
}

/* Tunnel table (desktop) */

.tunnel-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tunnel-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.tunnel-table th {
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--muted);
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.tunnel-table td {
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.tunnel-table .mono {
    font-variant-numeric: tabular-nums;
}

.tunnel-table .row-muted td {
    color: var(--muted);
}

.tunnel-link {
    color: var(--fg);
    font-weight: 600;
    text-decoration: none;
}

.tunnel-link:hover {
    text-decoration: underline;
}

/* Tunnel cards (mobile only — hidden on desktop) */

.tunnel-cards-mobile {
    display: none;
}

.tunnel-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
}

.tunnel-card-active {
    border-left: 3px solid #22c55e;
}

.tc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.35rem;
}

.tc-header .tunnel-link {
    font-size: 0.9rem;
}

.tc-slug-muted {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--muted);
}

.tc-details {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--muted);
}

.dash-nav-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.project-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.project-card h3 {
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.project-card p {
    color: var(--muted);
    font-size: 0.8rem;
}

/* Settings */

.settings {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
}

.settings h1 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.settings-subtitle {
    color: var(--muted);
    font-size: 0.85rem;
    margin-bottom: 2rem;
}

.settings h2 {
    font-size: 1rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.settings h2:first-of-type {
    margin-top: 0;
}

.account-info {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
}

.account-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
}

.account-row + .account-row {
    border-top: 1px solid var(--border);
}

.account-label {
    color: var(--muted);
}

.account-value {
    font-weight: 600;
}

.password-form {
    max-width: 380px;
    margin-bottom: 1.5rem;
}

.password-form label {
    margin-top: 0.75rem;
}

.password-form label:first-child {
    margin-top: 0;
}

.password-form .btn {
    margin-top: 1.25rem;
}

.success-notice {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.key-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    align-items: flex-end;
}

.key-form input[type="text"] {
    flex: 1;
    padding: 0.55rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.85rem;
    background: var(--card-bg);
    color: var(--fg);
}

.key-form input[type="text"]:focus {
    outline: none;
    border-color: var(--accent);
}

.key-form .btn {
    white-space: nowrap;
    margin-top: 0;
}

.new-key-notice {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 0.8rem;
    margin-bottom: 1.5rem;
}

.new-key-notice strong {
    display: block;
    margin-bottom: 0.25rem;
}

.new-key-value {
    font-family: inherit;
    background: #dcfce7;
    padding: 0.35rem 0.5rem;
    border-radius: 3px;
    word-break: break-all;
    display: block;
    margin-top: 0.5rem;
}

.key-list {
    list-style: none;
}

.key-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
}

.key-info {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.key-name {
    font-weight: 600;
}

.key-meta {
    color: var(--muted);
    font-size: 0.75rem;
}

.btn-danger {
    background: none;
    border: 1px solid #fecaca;
    color: var(--error);
    font-family: inherit;
    font-size: 0.8rem;
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius);
    cursor: pointer;
}

.btn-danger:hover {
    background: #fef2f2;
}

.empty-state {
    color: var(--muted);
    font-size: 0.85rem;
    padding: 1rem 0;
}

/* CLI Auth */

.cli-auth-prompt {
    margin-top: 1.5rem;
}

.cli-auth-detail {
    color: var(--muted);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.cli-auth-detail code {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
    font-size: 0.8rem;
}

.cli-auth-success {
    margin-top: 1.5rem;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
}

/* Responsive — tablet and up (640px) */

@media (min-width: 640px) {
    .landing-nav {
        padding: 1rem 2rem;
    }

    .hero {
        padding: 4rem 2rem 3rem;
    }

    .cta {
        flex-direction: row;
        justify-content: center;
        max-width: none;
        width: auto;
    }

    .cta .btn {
        width: auto;
    }

    .features {
        padding: 3rem 2rem;
    }

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

    .how-it-works {
        padding: 3rem 2rem;
    }

    .landing-footer {
        padding: 2rem;
    }
}

/* Responsive — non-landing: tablet (768px) */

@media (max-width: 768px) {
    .dashboard {
        padding: 0 1.5rem 3rem;
    }

    .projects {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
}

/* Responsive — non-landing: mobile (640px) */

@media (max-width: 640px) {
    nav {
        padding: 0.75rem 1rem;
        margin-bottom: 1.5rem;
    }

    .form-container {
        margin: 2rem auto;
        padding: 0 1rem;
        max-width: 100%;
    }

    .projects {
        grid-template-columns: 1fr;
    }

    .dashboard {
        padding: 0 1rem 2rem;
    }

    .settings {
        padding: 0 1rem 2rem;
    }

    .key-form {
        flex-direction: column;
    }

    .key-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .nav-email {
        font-size: 0.75rem;
    }

    /* Dashboard: swap table for cards on mobile */
    .tunnel-table-wrap {
        display: none;
    }

    .tunnel-cards-mobile {
        display: block;
    }

    .dash-nav-cards {
        grid-template-columns: 1fr;
    }
}

/* Responsive — small phones (375px) */

@media (max-width: 375px) {
    .form-container h1 {
        font-size: 1.1rem;
    }

    .btn {
        padding: 0.75rem 1rem;
        font-size: 0.8rem;
    }
}