:root {
    --bg: #f6f8fb;
    --bg-soft: #eef4f7;
    --card: rgba(255, 255, 255, 0.82);
    --card-solid: #ffffff;
    --text: #0f172a;
    --text-soft: #64748b;
    --border: #e2e8f0;
    --border-strong: #d7e0ea;
    --accent: #00bcca;
    --accent-soft: rgba(0, 188, 202, 0.14);
    --danger: #dc2626;
    --danger-soft: #fef2f2;
    --success: #15803d;
    --success-soft: #f0fdf4;
    --shadow:
            0 12px 30px rgba(15, 23, 42, 0.06),
            0 2px 10px rgba(15, 23, 42, 0.04);
    --radius-xl: 28px;
    --radius-lg: 18px;
    --radius-md: 14px;
    --transition: 0.18s ease;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: "Inter", sans-serif;
    color: var(--text);
    background:
            radial-gradient(circle at top left, rgba(0, 188, 202, 0.08), transparent 30%),
            radial-gradient(circle at bottom right, rgba(242, 24, 79, 0.05), transparent 28%),
            linear-gradient(180deg, #fbfcfe 0%, var(--bg) 100%);
    min-height: 100vh;
}

.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
}

.auth-card {
    width: 100%;
    max-width: 460px;
    padding: 34px;
    border-radius: var(--radius-xl);
    background: var(--card);
    border: 1px solid rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.card-accent {
    width: 64px;
    height: 4px;
    margin-bottom: 28px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent), #7ee7ef);
}

.brand {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 30px;
}

.logo {
    width: 54px;
    height: 54px;
    object-fit: contain;
    padding: 10px;
    border-radius: 16px;
    background: var(--card-solid);
    border: 1px solid var(--border);
    flex-shrink: 0;
}

.brand-content {
    min-width: 0;
}

.eyebrow {
    margin: 0 0 4px 0;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
}

.brand h1 {
    margin: 0;
    font-size: 2rem;
    line-height: 1;
    letter-spacing: -0.04em;
    font-weight: 700;
}

.subtitle {
    margin: 8px 0 0 0;
    color: var(--text-soft);
    font-size: 0.97rem;
    line-height: 1.5;
}

.login-form {
    display: grid;
    gap: 18px;
}

.field {
    display: grid;
    gap: 8px;
}

.label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

label {
    font-size: 0.92rem;
    font-weight: 600;
    color: #1e293b;
}

input {
    width: 100%;
    height: 54px;
    padding: 0 16px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.92);
    font-size: 1rem;
    color: var(--text);
    transition: var(--transition);
}

input::placeholder {
    color: #94a3b8;
}

input:hover {
    border-color: var(--border-strong);
}

input:focus {
    outline: none;
    border-color: var(--accent);
    background: #ffffff;
    box-shadow: 0 0 0 4px var(--accent-soft);
}

.primary-button,
.secondary-button,
.google-button {
    width: 100%;
    min-height: 56px;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 0.98rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-decoration: none;
}

.primary-button {
    margin-top: 4px;
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    color: #ffffff;
}

.primary-button:hover,
.secondary-button:hover,
.google-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.10);
}

.secondary-button {
    background: rgba(255, 255, 255, 0.95);
    color: var(--text);
    border: 1px solid var(--border);
}

.google-button {
    background: #ffffff;
    color: var(--text);
    border: 1px solid var(--border);
}

.google-button svg {
    width: 18px;
    height: 18px;
}

.text-link {
    color: #3b556f;
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.card-footer {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    gap: 12px;
    color: var(--text-soft);
    font-size: 0.92rem;
}

.stack {
    display: grid;
    gap: 12px;
}

.alert {
    margin-bottom: 18px;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    font-size: 0.94rem;
    line-height: 1.5;
    border: 1px solid transparent;
}

.alert-error {
    color: var(--danger);
    background: var(--danger-soft);
    border-color: #fecaca;
}

.alert-success {
    color: var(--success);
    background: var(--success-soft);
    border-color: #bbf7d0;
}

.alert ul {
    margin: 0;
    padding-left: 18px;
}

.helper-text {
    margin: 0;
    color: var(--text-soft);
    font-size: 0.9rem;
    line-height: 1.5;
}

.toggle-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-top: 6px;
    flex-wrap: wrap;
}

.toggle-button {
    background: none;
    border: none;
    padding: 0;
    color: #3b556f;
    font: inherit;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
}

.toggle-button:hover {
    color: var(--accent);
}

@media (max-width: 520px) {
    .auth-page {
        padding: 18px;
    }

    .auth-card {
        padding: 24px;
        border-radius: 22px;
    }

    .brand {
        align-items: flex-start;
    }

    .brand h1 {
        font-size: 1.7rem;
    }

    .label-row,
    .card-footer,
    .toggle-row {
        flex-direction: column;
        align-items: flex-start;
    }
}