:root {
    --font-ui: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

    /* Surface */
    --bg: #f0ede8;
    --bg-panel: #ffffff;
    --bg-elevated: rgba(255, 255, 255, 0.92);
    --bg-ink: #0d1010;
    --bg-ink-soft: rgba(13, 16, 16, 0.82);

    /* Text */
    --text: #0d1010;
    --text-soft: rgba(13, 16, 16, 0.55);
    --text-xsoft: rgba(13, 16, 16, 0.38);
    --text-inverse: #f5f4f0;

    /* Accent */
    --accent: #fc7970;
    --accent-deep: #e96a62;
    --accent-glow: rgba(252, 121, 112, 0.22);

    /* Shadows */
    --shadow: 0 2px 6px rgba(13, 16, 16, 0.06), 0 10px 32px rgba(13, 16, 16, 0.08);
    --shadow-lg: 0 4px 12px rgba(13, 16, 16, 0.06), 0 24px 60px rgba(13, 16, 16, 0.1);

    /* Radii */
    --radius-xl: 20px;
    --radius-lg: 14px;
    --radius-md: 10px;
    --radius-sm: 7px;
}

* {
    box-sizing: border-box;
}

html {
    background: var(--bg);
    color: var(--text);
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: var(--font-ui);
    font-size: 0.9375rem;
    line-height: 1.5;
    background:
        radial-gradient(circle at top, rgba(252, 121, 112, 0.1), transparent 34%),
        var(--bg);
    -webkit-font-smoothing: antialiased;
}

/* ── Login container ───────────────────────────────────── */
.login-shell {
    display: grid;
    place-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-panel {
    width: 100%;
    max-width: 420px;
    background: var(--bg-panel);
    border: 1px solid rgba(13, 16, 16, 0.08);
    border-radius: 18px;
    box-shadow: 0 10px 30px rgba(13, 16, 16, 0.08), 0 28px 70px rgba(13, 16, 16, 0.1);
    padding: 18px 18px 28px;
}

/* ── Brand section ─────────────────────────────────────── */
.login-brand {
    margin: -18px -18px 28px;
}

.login-brand-copy {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 18px 18px 17px;
    border-radius: 18px 18px 0 0;
    background: var(--bg-ink);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.login-brand-logo {
    display: block;
    width: 160px;
    max-width: 100%;
    height: auto;
}

/* ── Form ──────────────────────────────────────────────── */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.login-microsoft-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 12px 16px;
    margin-bottom: 18px;
    border: 1px solid rgba(13, 16, 16, 0.14);
    border-radius: var(--radius-md);
    background: #fff;
    color: var(--text);
    font-family: var(--font-ui);
    font-size: 0.9375rem;
    font-weight: 700;
    text-decoration: none;
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.login-microsoft-button:hover {
    transform: translateY(-1px);
    border-color: rgba(13, 16, 16, 0.24);
    box-shadow: var(--shadow);
}

.login-microsoft-button:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.login-intro {
    margin: 0 0 18px;
}

.login-intro h1 {
    margin: 0 0 6px;
    font-size: 1.35rem;
    line-height: 1.15;
    letter-spacing: -0.03em;
}

.login-intro p {
    margin: 0;
    color: var(--text-soft);
    font-size: 0.92rem;
}

.login-alt-panel {
    margin-top: 8px;
    border: 1px solid rgba(13, 16, 16, 0.08);
    border-radius: var(--radius-md);
    background: rgba(13, 16, 16, 0.02);
    overflow: hidden;
}

.login-alt-panel summary {
    list-style: none;
    padding: 12px 14px;
    cursor: pointer;
    text-align: center;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-soft);
}

.login-alt-panel summary::-webkit-details-marker {
    display: none;
}

.login-alt-panel[open] summary {
    border-bottom: 1px solid rgba(13, 16, 16, 0.08);
    color: var(--text);
}

.login-alt-panel .login-form {
    padding: 14px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input {
    padding: 11px 13px;
    border: 1px solid rgba(13, 16, 16, 0.12);
    border-radius: var(--radius-md);
    background: var(--bg-panel);
    color: var(--text);
    font-family: var(--font-ui);
    font-size: 0.9375rem;
    transition: border-color 160ms ease, box-shadow 160ms ease;
    outline: none;
}

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

.form-group input:hover {
    border-color: rgba(13, 16, 16, 0.18);
}

.form-group input:focus {
    border-color: var(--accent);
    box-shadow: inset 0 0 0 1px var(--accent), 0 0 0 3px var(--accent-glow);
}

/* ── Submit button ─────────────────────────────────────── */
.login-submit {
    padding: 12px 16px;
    margin-top: 8px;
    border: none;
    border-radius: var(--radius-md);
    background: linear-gradient(180deg, var(--bg-ink) 0%, #1c2323 100%);
    color: var(--text-inverse);
    font-family: var(--font-ui);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 160ms ease, box-shadow 160ms ease;
    outline: none;
}

.login-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 22px rgba(13, 16, 16, 0.18);
}

.login-submit:active {
    transform: translateY(0);
}

.login-submit:focus-visible {
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.login-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ── Messages ──────────────────────────────────────────── */
.login-message {
    padding: 12px 13px;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    line-height: 1.4;
}

.login-message.error {
    background: rgba(232, 51, 74, 0.1);
    border: 1px solid rgba(232, 51, 74, 0.28);
    color: #c91a2e;
}

.login-message.success {
    background: rgba(58, 156, 95, 0.1);
    border: 1px solid rgba(58, 156, 95, 0.24);
    color: #2a7a47;
}

/* ── Footer text ───────────────────────────────────────── */
.login-footer {
    margin-top: 24px;
    text-align: center;
    font-size: 12px;
    color: var(--text-xsoft);
}

.login-footer a {
    color: var(--accent-deep);
    text-decoration: none;
    font-weight: 600;
    transition: color 160ms ease;
}

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

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 480px) {
    .login-panel {
        padding: 16px 16px 24px;
    }

    .login-brand {
        margin: -16px -16px 24px;
    }

    .login-brand-copy {
        padding: 16px 16px 15px;
    }

    .login-brand-logo {
        width: 144px;
    }
}