:root {
        --bg: #0d0f0d;
        --panel: #131612;
        --text: #eae7dd;
        --muted: #83887e;
        --line: #262922;
        --green: #7fae6d;
        --red: #b06a5a;
    }

    * { box-sizing: border-box; }

    html, body {
        margin: 0;
        padding: 0;
        background: var(--bg);
        color: var(--text);
        font-family: 'DM Sans', sans-serif;
        font-weight: 300;
        min-height: 100vh;
    }

    a { color: inherit; }

    .wrap {
        min-height: 100vh;
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    /* LEFT — identity / rack panel */
    .side {
        background: var(--panel);
        border-right: 1px solid var(--line);
        padding: 48px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    .logo {
        font-family: 'DM Mono', monospace;
        font-size: 20px;
        letter-spacing: 0.08em;
        text-decoration: none;
        color: var(--text);
    }

    .side-tag {
        font-family: 'DM Mono', monospace;
        font-size: 10px;
        letter-spacing: 0.08em;
        color: var(--muted);
        margin-top: 6px;
        display: block;
    }

    .checklist {
        display: flex;
        flex-direction: column;
        gap: 14px;
        margin: 60px 0;
    }

    .check-row {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        font-family: 'DM Mono', monospace;
        font-size: 11px;
        letter-spacing: 0.04em;
        color: var(--muted);
        line-height: 1.6;
    }

    .check-num {
        color: var(--green);
        flex-shrink: 0;
    }

    .side-note {
        font-family: 'DM Mono', monospace;
        font-size: 10px;
        color: var(--muted);
        line-height: 1.8;
        letter-spacing: 0.04em;
        border-top: 1px solid var(--line);
        padding-top: 20px;
    }

    /* RIGHT — form */
    .main {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 40px;
    }

    .form-card {
        width: 100%;
        max-width: 380px;
    }

    .form-eyebrow {
        font-family: 'DM Mono', monospace;
        font-size: 10px;
        letter-spacing: 0.1em;
        color: var(--muted);
        text-transform: uppercase;
    }

    h1 {
        font-family: 'DM Sans', sans-serif;
        font-weight: 300;
        font-size: 28px;
        margin: 8px 0 4px;
    }

    .form-sub {
        font-size: 13px;
        color: var(--muted);
        margin: 0 0 28px;
    }

    .field-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 14px;
    }

    label {
        display: flex;
        flex-direction: column;
        gap: 8px;
        font-family: 'DM Mono', monospace;
        font-size: 10px;
        letter-spacing: 0.08em;
        color: var(--muted);
        text-transform: uppercase;
        margin-bottom: 18px;
    }

    input[type="text"],
    input[type="email"],
    input[type="password"],
    select {
        font-family: 'DM Sans', sans-serif;
        font-size: 14px;
        color: var(--text);
        background: transparent;
        border: none;
        border-bottom: 1px solid var(--line);
        padding: 10px 2px;
        outline: none;
        transition: border-color 0.15s ease;
        width: 100%;
        appearance: none;
    }

    select option { background: var(--panel); color: var(--text); }

    input:focus,
    select:focus {
        border-bottom-color: var(--green);
    }

    input:focus-visible,
    select:focus-visible {
        outline: 1px solid var(--green);
        outline-offset: 3px;
    }

    .hint {
        font-family: 'DM Mono', monospace;
        font-size: 10px;
        color: var(--muted);
        text-transform: none;
        letter-spacing: 0.02em;
        margin-top: -12px;
        margin-bottom: 18px;
    }

    .error-msg {
        font-family: 'DM Mono', monospace;
        font-size: 11px;
        color: var(--red);
        border: 1px solid var(--red);
        padding: 10px 12px;
        margin-bottom: 20px;
        display: none;
    }

    .error-msg.show { display: block; }

    .terms-row {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        font-family: 'DM Mono', monospace;
        font-size: 11px;
        color: var(--muted);
        text-transform: none;
        letter-spacing: 0;
        margin-bottom: 24px;
        line-height: 1.5;
    }

    .terms-row input { accent-color: var(--green); margin-top: 3px; flex-shrink: 0; }

    .terms-row a { color: var(--text); text-decoration: underline; text-underline-offset: 3px; }

    .btn-signup {
        width: 100%;
        padding: 14px;
        background: var(--green);
        color: #0d0f0d;
        border: none;
        font-family: 'DM Mono', monospace;
        font-size: 12px;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        cursor: pointer;
        transition: opacity 0.15s ease;
    }

    .btn-signup:hover { opacity: 0.85; }

    .divider {
        display: flex;
        align-items: center;
        gap: 12px;
        margin: 28px 0;
        color: var(--muted);
        font-family: 'DM Mono', monospace;
        font-size: 10px;
        text-transform: uppercase;
        letter-spacing: 0.08em;
    }

    .divider::before,
    .divider::after {
        content: '';
        flex: 1;
        height: 1px;
        background: var(--line);
    }

    .login-row {
        text-align: center;
        font-size: 13px;
        color: var(--muted);
    }

    .login-row a {
        color: var(--text);
        text-decoration: underline;
        text-underline-offset: 3px;
    }

    .back-home {
        display: inline-block;
        margin-top: 40px;
        font-family: 'DM Mono', monospace;
        font-size: 11px;
        color: var(--muted);
        text-decoration: none;
    }

    .back-home:hover { color: var(--text); }

    @media (max-width: 800px) {
        .wrap { grid-template-columns: 1fr; }
        .side { display: none; }
        .main { padding: 24px; min-height: 100vh; }
    }

    @media (max-width: 480px) {
        .field-row { grid-template-columns: 1fr; }
    }


    * { box-sizing: border-box; }

    html, body {
        margin: 0;
        padding: 0;
        background: var(--bg);
        color: var(--text);
        font-family: 'DM Sans', sans-serif;
        font-weight: 300;
        min-height: 100vh;
    }

    a { color: inherit; }

    .wrap {
        min-height: 100vh;
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    /* LEFT — identity / rack panel */
    .side {
        background: var(--panel);
        border-right: 1px solid var(--line);
        padding: 48px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    .logo {
        font-family: 'DM Mono', monospace;
        font-size: 20px;
        letter-spacing: 0.08em;
        text-decoration: none;
        color: var(--text);
    }

    .side-tag {
        font-family: 'DM Mono', monospace;
        font-size: 10px;
        letter-spacing: 0.08em;
        color: var(--muted);
        margin-top: 6px;
        display: block;
    }

    .rack {
        display: flex;
        flex-direction: column;
        gap: 10px;
        margin: 60px 0;
    }

    .rack-unit {
        display: flex;
        align-items: center;
        justify-content: space-between;
        border: 1px solid var(--line);
        padding: 12px 16px;
        font-family: 'DM Mono', monospace;
        font-size: 11px;
        letter-spacing: 0.06em;
        color: var(--muted);
    }

    .rack-unit.active { color: var(--text); border-color: var(--green); }

    .rack-dot {
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--green);
    }

    .rack-dot.blink { animation: blink 1.8s ease-in-out infinite; }

    @keyframes blink {
        0%, 100% { opacity: 1; }
        50% { opacity: 0.25; }
    }

    .side-note {
        font-family: 'DM Mono', monospace;
        font-size: 10px;
        color: var(--muted);
        line-height: 1.8;
        letter-spacing: 0.04em;
    }

    /* RIGHT — form */
    .main {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 40px;
    }

    .form-card {
        width: 100%;
        max-width: 360px;
    }

    .form-eyebrow {
        font-family: 'DM Mono', monospace;
        font-size: 10px;
        letter-spacing: 0.1em;
        color: var(--muted);
        text-transform: uppercase;
    }

    h1 {
        font-family: 'DM Sans', sans-serif;
        font-weight: 300;
        font-size: 28px;
        margin: 8px 0 4px;
    }

    .form-sub {
        font-size: 13px;
        color: var(--muted);
        margin: 0 0 32px;
    }

    label {
        display: flex;
        flex-direction: column;
        gap: 8px;
        font-family: 'DM Mono', monospace;
        font-size: 10px;
        letter-spacing: 0.08em;
        color: var(--muted);
        text-transform: uppercase;
        margin-bottom: 18px;
    }

    input[type="email"],
    input[type="password"] {
        font-family: 'DM Sans', sans-serif;
        font-size: 14px;
        color: var(--text);
        background: transparent;
        border: none;
        border-bottom: 1px solid var(--line);
        padding: 10px 2px;
        outline: none;
        transition: border-color 0.15s ease;
    }

    input[type="email"]:focus,
    input[type="password"]:focus {
        border-bottom-color: var(--green);
    }

    input:focus-visible {
        outline: 1px solid var(--green);
        outline-offset: 3px;
    }

    .row-between {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin: -4px 0 28px;
        font-family: 'DM Mono', monospace;
        font-size: 11px;
    }

    .remember {
        display: flex;
        align-items: center;
        gap: 8px;
        color: var(--muted);
        text-transform: none;
        letter-spacing: 0;
    }

    .remember input { accent-color: var(--green); }

    .forgot {
        color: var(--muted);
        text-decoration: underline;
        text-underline-offset: 3px;
    }

    .forgot:hover { color: var(--text); }

    .btn-login {
        width: 100%;
        padding: 14px;
        background: var(--green);
        color: #0d0f0d;
        border: none;
        font-family: 'DM Mono', monospace;
        font-size: 12px;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        cursor: pointer;
        transition: opacity 0.15s ease;
    }

    .btn-login:hover { opacity: 0.85; }

    .error-msg {
        font-family: 'DM Mono', monospace;
        font-size: 11px;
        color: var(--red);
        border: 1px solid var(--red);
        padding: 10px 12px;
        margin-bottom: 20px;
        display: none;
    }

    .error-msg.show { display: block; }

    .divider {
        display: flex;
        align-items: center;
        gap: 12px;
        margin: 28px 0;
        color: var(--muted);
        font-family: 'DM Mono', monospace;
        font-size: 10px;
        text-transform: uppercase;
        letter-spacing: 0.08em;
    }

    .divider::before,
    .divider::after {
        content: '';
        flex: 1;
        height: 1px;
        background: var(--line);
    }

    .signup-row {
        text-align: center;
        font-size: 13px;
        color: var(--muted);
    }

    .signup-row a {
        color: var(--text);
        text-decoration: underline;
        text-underline-offset: 3px;
    }

    .back-home {
        display: inline-block;
        margin-top: 40px;
        font-family: 'DM Mono', monospace;
        font-size: 11px;
        color: var(--muted);
        text-decoration: none;
    }

    .back-home:hover { color: var(--text); }

    @media (max-width: 800px) {
        .wrap { grid-template-columns: 1fr; }
        .side { display: none; }
        .main { padding: 24px; min-height: 100vh; }
    }