/* ============================================================
   Winnow Auth — standalone auth page styles
   No header/footer. Centered form. No framework.
   ============================================================ */

/* ---- Variables ---- */
:root {
    --color-bg:            #f9fafb;
    --color-surface:       #ffffff;
    --color-primary:       #1a1a1a;
    --color-primary-hover: #333333;
    --color-text:          #1a1a1a;
    --color-text-muted:    #6b7280;
    --color-border:        #e5e7eb;
    --color-error:         #dc2626;
    --color-error-bg:      #fef2f2;
    --color-error-border:  #fecaca;
    --color-info:          #1d4ed8;
    --color-info-bg:       #eff6ff;
    --color-info-border:   #bfdbfe;
    --color-success:       #15803d;
    --color-success-bg:    #f0fdf4;
    --color-success-border:#bbf7d0;

    --font-sans:        system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --font-size-base:   1rem;
    --font-size-sm:     0.875rem;
    --font-size-xs:     0.75rem;
    --font-size-lg:     1.125rem;

    --radius:      8px;
    --radius-lg:   12px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
}

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

/* ---- Base ---- */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

/* ============================================================
   Page wrapper — centers auth-container top-aligned with
   generous padding. Verify page uses --centered variant.
   ============================================================ */
.auth-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    padding: 5rem 1.5rem 3rem;
}

/* Vertically centered variant for verify/result pages */
.auth-wrapper--centered {
    justify-content: center;
    padding-block: 3rem;
}

/* ============================================================
   Container
   ============================================================ */
.auth-container {
    width: 100%;
    max-width: 480px;
}

/* ============================================================
   Heading & subtitle
   ============================================================ */
.auth-heading {
    font-size: 2.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: var(--color-text);
    margin-bottom: 2.5rem;
}

.auth-heading--centered {
    text-align: center;
}

.auth-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    text-align: center;
    margin-top: -1.5rem;
    margin-bottom: 2rem;
}

/* ============================================================
   Form layout
   ============================================================ */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

/* Two-column row for password + confirm */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* ============================================================
   Labels & inputs
   ============================================================ */
.form-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-muted);
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-surface);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    outline: none;
    transition: border-color .15s;
    -webkit-appearance: none;
}

.form-input::placeholder {
    color: #adb5bd;
}

.form-input:focus {
    border-color: var(--color-primary);
}

.form-input--code {
    text-align: center;
    font-size: 1.75rem;
    letter-spacing: 0.35em;
    padding: 1rem;
    font-weight: 600;
}

/* ============================================================
   Inline field errors
   ============================================================ */
.form-error {
    font-size: var(--font-size-xs);
    color: var(--color-error);
    margin-top: 0.125rem;
}

/* ============================================================
   Checkbox row
   ============================================================ */
.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
}

.form-checkbox input[type="checkbox"] {
    margin-top: 0.2rem;
    flex-shrink: 0;
    width: 1rem;
    height: 1rem;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.form-checkbox-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    line-height: 1.5;
}

.form-checkbox-label a {
    color: var(--color-text);
    text-decoration: underline;
}

/* ============================================================
   Forgot password row
   ============================================================ */
.form-forgot {
    display: flex;
    justify-content: flex-end;
    margin-top: -0.5rem;
}

.form-forgot a {
    font-size: var(--font-size-sm);
    color: var(--color-text);
}

/* ============================================================
   Submit button
   ============================================================ */
.auth-btn {
    display: block;
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: #ffffff;
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    text-align: center;
    transition: background-color .15s;
}

.auth-btn:hover {
    background: var(--color-primary-hover);
}

/* Narrower centered button for verify page */
.auth-btn--narrow {
    width: auto;
    min-width: 260px;
    margin-inline: auto;
    padding-inline: 2.5rem;
}

/* ============================================================
   Below-form link (Already have an account? / Sign Up)
   ============================================================ */
.auth-link {
    margin-top: 1.5rem;
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.auth-link a {
    color: var(--color-text);
    text-decoration: underline;
}

/* ============================================================
   Resend form (link-style button)
   ============================================================ */
.auth-resend {
    margin-top: 1rem;
    text-align: center;
}

.auth-link-btn {
    background: none;
    border: none;
    padding: 0;
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    text-decoration: underline;
    cursor: pointer;
}

/* ============================================================
   Global messages
   ============================================================ */
.global-error {
    padding: 0.75rem 1rem;
    background: var(--color-error-bg);
    border: 1px solid var(--color-error-border);
    border-radius: var(--radius);
    font-size: var(--font-size-sm);
    color: var(--color-error);
}

.info-message {
    padding: 0.75rem 1rem;
    background: var(--color-info-bg);
    border: 1px solid var(--color-info-border);
    border-radius: var(--radius);
    font-size: var(--font-size-sm);
    color: var(--color-info);
}

.success-message {
    padding: 0.75rem 1rem;
    background: var(--color-success-bg);
    border: 1px solid var(--color-success-border);
    border-radius: var(--radius);
    font-size: var(--font-size-sm);
    color: var(--color-success);
}

/* ============================================================
   Result pages (verify-result, reset-result)
   ============================================================ */
.auth-result {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
}

.auth-result p {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
}

.auth-result a {
    color: var(--color-text);
    text-decoration: underline;
}

/* ============================================================
   Responsive — mobile (< 480px)
   ============================================================ */
@media (max-width: 479px) {
    .auth-wrapper {
        padding-top: 3rem;
    }

    .auth-heading {
        font-size: 2rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .auth-btn--narrow {
        width: 100%;
        min-width: unset;
    }
}