:root {
    --black: #000;
    --white: #fff;
    --g100: #f5f5f5;
    --g200: #e5e5e5;
    --g300: #d4d4d4;
    --g400: #a3a3a3;
    --g500: #737373;
    --g600: #525252;
    --g700: #404040;
    --g900: #171717;
    --shadow: 0 20px 25px -5px rgba(0,0,0,.08);
    --mono: 'JetBrains Mono', monospace;
    --display: 'Syne', sans-serif;
}

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

body {
    font-family: var(--display);
    background: var(--white);
    color: var(--black);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Page / Panel */
.page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background: var(--white);
}

.panel {
    width: min(1100px, 100%);
    background: var(--white);
    border: 1px solid var(--g200);
    box-shadow: var(--shadow);
    padding: 40px 48px;
    border-radius: 16px;
}

.panel-header {
    border-bottom: 1px solid var(--g200);
    padding-bottom: 24px;
    margin-bottom: 32px;
}

.logo-row {
    display: flex;
    gap: 14px;
    align-items: center;
}

.mini-mark {
    width: 52px;
    height: 52px;
    background: var(--black);
    color: var(--white);
    display: grid;
    place-items: center;
    font-family: var(--display);
    font-weight: 800;
    font-size: 20px;
    border: 2px solid var(--black);
    border-radius: 10px;
}

h1 {
    font-size: 32px;
    letter-spacing: -.02em;
    margin-bottom: 4px;
    font-weight: 700;
}

.accent {
    color: #222;
    text-decoration: underline;
    text-underline-offset: 6px;
}

.panel-header p {
    color: var(--g500);
    font-size: 15px;
    margin-top: 4px;
}

.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.card {
    border: none;
    padding: 0 24px;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

    .card:first-child {
        border-right: 1px solid var(--g200);
        padding-left: 0;
    }

    .card:last-child {
        padding-right: 0;
        padding-left: 40px;
    }

h2 {
    font-size: 20px;
    margin-bottom: 6px;
    font-weight: 700;
}

.muted {
    color: var(--g500);
    font-size: 14px;
    margin-bottom: 24px;
}

/* Buttons */
.btn {
    width: 100%;
    border: 1.5px solid var(--g200);
    background: transparent;
    color: var(--black);
    padding: 14px 18px;
    font-weight: 600;
    font-family: var(--display);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all .2s ease;
    border-radius: 10px;
    font-size: 15px;
    text-decoration: none;
}

    .btn:hover {
        border-color: var(--g300);
        background: var(--g100);
        transform: translateY(-1px);
    }

    .btn.primary {
        background: var(--black);
        color: var(--white);
        border-color: var(--black);
    }

        .btn.primary:hover {
            background: #222;
            border-color: #222;
        }

    .btn.ghost {
        border-color: var(--g200);
        color: var(--g700);
    }

        .btn.ghost:hover {
            border-color: var(--black);
            color: var(--black);
        }

    .btn.oauth {
        border-color: var(--g200);
        margin-bottom: 12px;
        background: var(--white);
    }

        .btn.oauth:hover {
            border-color: var(--g300);
            background: var(--g100);
        }

        .btn.oauth i {
            font-size: 18px;
        }

        .btn.oauth.google i {
            background: conic-gradient(from 180deg at 50% 50%, #EA4335 0deg, #FBBC05 90deg, #34A853 180deg, #4285F4 270deg, #EA4335 360deg);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

.divider {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 18px 0;
    color: var(--g500);
}

    .divider::before, .divider::after {
        content: "";
        flex: 1;
        height: 1px;
        background: var(--g200);
    }

    .divider span {
        font-family: var(--display);
        font-size: 13px;
        color: var(--g500);
    }

/* Form */
.form {
    position: relative;
}

.label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--black);
}

.input-row {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

input[type="email"], input[type="password"], input[type="text"] {
    flex: 1;
    border: 1.5px solid var(--g200);
    padding: 14px 16px;
    font-size: 15px;
    font-family: var(--display);
    outline: none;
    border-radius: 10px;
    background: #fafafa;
    color: var(--black);
    transition: border-color .2s ease, box-shadow .2s ease;
}

input:focus {
    border-color: var(--black);
    box-shadow: 0 0 0 3px rgba(0,0,0,0.05);
    background: var(--white);
}

.icon-btn {
    width: 52px;
    border: 1.5px solid var(--g200);
    background: var(--white);
    cursor: pointer;
    transition: border-color .15s ease, transform .15s ease;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--g700);
}

    .icon-btn:hover {
        border-color: var(--black);
        transform: translateY(-1px);
    }

.foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    gap: 10px;
}

.pill {
    border: 1px solid var(--g300);
    padding: 6px 12px;
    font-size: 11px;
    letter-spacing: .12em;
    color: var(--g700);
    border-radius: 6px;
    font-family: var(--mono);
    font-weight: 500;
}

.status {
    color: var(--g500);
    font-size: 12px;
}

.panel-footer {
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid var(--g200);
    color: var(--g500);
    display: flex;
    gap: 8px;
    justify-content: center;
    font-size: 13px;
    align-items: center;
}

    .panel-footer a {
        color: var(--g600);
        text-decoration: none;
        transition: color .2s ease;
    }

        .panel-footer a:hover {
            color: var(--black);
            text-decoration: underline;
        }

.footer-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

    .footer-links .divider-dot {
        opacity: 0.4;
    }

/* Signup section */
.signup-section {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--g200);
}

    .signup-section p {
        font-size: 0.9rem;
        color: var(--g500);
        margin-bottom: 0.75rem;
    }

.signup-links {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.signup-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: var(--white);
    border: 1.5px solid var(--g200);
    border-radius: 8px;
    color: var(--black);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

    .signup-link:hover {
        border-color: var(--black);
        transform: translateY(-1px);
        background: var(--g100);
        color: var(--black);
    }

    .signup-link i {
        font-size: 0.9rem;
        color: var(--g500);
    }

/* Auth alerts */
.auth-alert {
    background: rgba(255, 77, 109, 0.06);
    border: 1px solid rgba(255, 77, 109, 0.2);
    border-radius: 10px;
    padding: .75rem 1rem;
    font-size: .85rem;
    color: #d32f2f;
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-bottom: 16px;
}

.text-danger {
    font-size: .75rem;
    color: #d32f2f;
    font-family: var(--mono);
    margin-top: .25rem;
    display: block;
}

/* Responsive */
@media (max-width: 860px) {
    .grid {
        grid-template-columns: 1fr;
    }

    .card:first-child {
        border-right: none;
        border-bottom: 1px solid var(--g200);
        padding-bottom: 24px;
        margin-bottom: 24px;
    }

    .card:last-child {
        padding-left: 0;
    }

    .panel {
        padding: 24px;
    }

    .signup-links {
        flex-direction: column;
    }
}

@media (max-width: 700px) {
    .panel {
        padding: 18px;
    }

    .card {
        padding: 0;
    }
}