/* ============================================
   Password Step 1 - GitHub Primer Style
   Clean, Simple Design with 80ms Transitions
   ============================================ */

/* ===== Page Layout ===== */
.auth-page {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    background-color: var(--color-canvas-subtle);
}

/* ===== Background ===== */
.auth-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
    background-color: var(--color-canvas-subtle);
}

.auth-bg-gradient {
    display: none;
}

.auth-bg-pattern {
    display: none;
}

/* ===== Container ===== */
.auth-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 480px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* ===== Progress Steps ===== */
.auth-steps {
    display: flex;
    align-items: center;
    gap: 0;
    margin-bottom: var(--space-8);
    padding: var(--space-4) var(--space-6);
    background-color: var(--color-canvas-default);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
}

.auth-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
}

.auth-step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-fg-muted);
    background-color: var(--color-canvas-subtle);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-full);
    transition: background-color 80ms, border-color 80ms;
}

.auth-step-check {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background-color: var(--color-success-emphasis);
    border-radius: var(--radius-full);
    color: white;
}

.auth-step-check svg {
    width: 16px;
    height: 16px;
}

.auth-step-label {
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    color: var(--color-fg-muted);
    white-space: nowrap;
}

.auth-step--active .auth-step-number {
    color: white;
    background-color: var(--color-success-emphasis);
    border-color: var(--color-success-emphasis);
}

.auth-step--active .auth-step-label {
    color: var(--color-fg-default);
    font-weight: var(--font-semibold);
}

.auth-step--completed .auth-step-label {
    color: var(--color-success-fg);
}

.auth-step-line {
    width: 40px;
    height: 2px;
    background-color: var(--color-border-default);
    margin: 0 var(--space-2);
    margin-bottom: var(--space-6);
}

.auth-step-line--active {
    background-color: var(--color-success-emphasis);
}

/* ===== Card ===== */
.auth-card {
    width: 100%;
    padding: var(--space-10);
    background-color: var(--color-canvas-default);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    text-align: center;
}

/* ===== Icon ===== */
.auth-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-6);
    background-color: var(--color-accent-subtle);
    border-radius: var(--radius-md);
    color: var(--color-accent-emphasis);
}

.auth-icon svg {
    width: 36px;
    height: 36px;
}

.auth-icon--success {
    background-color: var(--color-success-subtle);
    color: var(--color-success-emphasis);
}

/* ===== Title ===== */
.auth-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-fg-default);
    margin: 0 0 var(--space-2);
}

.auth-desc {
    font-size: var(--text-base);
    color: var(--color-fg-muted);
    line-height: var(--leading-relaxed);
    margin: 0 0 var(--space-8);
}

/* ===== Form ===== */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    text-align: left;
}

.auth-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.auth-label {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-fg-default);
}

.auth-input-wrap {
    position: relative;
}

.auth-input-icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--color-fg-muted);
    pointer-events: none;
}

.auth-input {
    width: 100%;
    height: 48px;
    padding: 0 var(--space-4) 0 var(--space-12);
    font-size: var(--text-base);
    color: var(--color-fg-default);
    background-color: var(--color-canvas-default);
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    transition: border-color 80ms;
}

.auth-input:focus {
    outline: none;
    border-color: var(--color-accent-emphasis);
    box-shadow: 0 0 0 3px var(--color-accent-muted);
}

.auth-input::placeholder {
    color: var(--color-fg-muted);
}

.auth-input--readonly {
    background-color: var(--color-canvas-subtle);
    color: var(--color-fg-muted);
    cursor: not-allowed;
}

.auth-error {
    font-size: var(--text-sm);
    color: var(--color-danger-fg);
}

/* ===== Submit Button ===== */
.auth-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
    height: 48px;
    margin-top: var(--space-2);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: white;
    background-color: var(--color-success-emphasis);
    border: 1px solid rgba(31, 35, 40, 0.15);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color 80ms;
}

.auth-submit:hover {
    background-color: #1d4ed8;
}

.auth-submit svg {
    width: 18px;
    height: 18px;
}

/* ===== Footer ===== */
.auth-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border-default);
    font-size: var(--text-sm);
    color: var(--color-fg-muted);
}

.auth-footer svg {
    width: 16px;
    height: 16px;
    color: var(--color-fg-muted);
}

.auth-back-link {
    font-weight: var(--font-medium);
    color: var(--color-accent-fg);
    text-decoration: none;
    transition: color 80ms;
}

.auth-back-link:hover {
    color: var(--color-accent-emphasis);
    text-decoration: underline;
}

.auth-link {
    font-weight: var(--font-semibold);
    color: var(--color-accent-fg);
    text-decoration: none;
    margin-left: var(--space-1);
    transition: color 80ms;
}

.auth-link:hover {
    color: var(--color-accent-emphasis);
    text-decoration: underline;
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
    .auth-page {
        padding: var(--space-4);
        align-items: flex-start;
        padding-top: calc(var(--header-height) + var(--space-6));
    }

    .auth-steps {
        padding: var(--space-3) var(--space-4);
    }

    .auth-step-number,
    .auth-step-check {
        width: 28px;
        height: 28px;
    }

    .auth-step-label {
        font-size: 10px;
    }

    .auth-step-line {
        width: 24px;
    }

    .auth-card {
        padding: var(--space-6);
    }

    .auth-icon {
        width: 64px;
        height: 64px;
    }

    .auth-icon svg {
        width: 32px;
        height: 32px;
    }

    .auth-title {
        font-size: var(--text-xl);
    }

    .auth-desc {
        font-size: var(--text-sm);
    }

    .auth-input {
        height: 44px;
    }

    .auth-submit {
        height: 44px;
    }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    .auth-submit,
    .auth-back-link,
    .auth-link {
        transition: none;
    }
}