/* ============================================
   AFPM Essay Competition — Amai Brand Styles
   ============================================ */

:root {
    /* Colors */
    --color-primary: #142828;
    --color-primary-light: #1a3535;
    --color-primary-lighter: #1f4040;
    --color-dark: #0D131D;
    --color-white: #FFFFFF;
    --color-bg-light: #FAFAFA;
    --color-bg-input: #F3F3F3;
    --color-border: #E5E5E5;
    --color-text-primary: #0D131D;
    --color-text-secondary: #6B7280;
    --color-text-on-dark: #FFFFFF;
    --color-text-muted-on-dark: rgba(255, 255, 255, 0.65);
    --color-error: #DC2626;
    --color-error-bg: #FEF2F2;
    --color-warning: #D97706;
    --color-success: #16A34A;
    --color-success-bg: #F0FDF4;
    --color-focus: rgba(20, 40, 40, 0.3);
    --color-card-selected: rgba(20, 40, 40, 0.04);

    /* Typography */
    --font-heading: 'Bricolage Grotesque', serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-card: 16px;
    --radius-pill: 240px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    --transition-slow: 300ms ease;
}

/* ---- Reset & Base ---- */

[hidden] {
    display: none !important;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    color: var(--color-text-primary);
    background: var(--color-white);
    line-height: 1.6;
    min-height: 100vh;
}

/* ---- Page Layout ---- */

.page-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    min-height: 100vh;
}

/* ---- Sidebar ---- */

.sidebar {
    background: var(--color-primary);
    color: var(--color-text-on-dark);
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.sidebar__content {
    padding: var(--space-3xl) var(--space-2xl);
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.sidebar__logo {
    margin-bottom: var(--space-3xl);
}

.sidebar__logo img {
    height: 28px;
    width: auto;
}

.sidebar__header {
    margin-bottom: var(--space-2xl);
}

.sidebar__title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.02em;
}

.sidebar__subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted-on-dark);
    font-weight: 400;
}

.sidebar__meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.sidebar__meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    color: var(--color-text-muted-on-dark);
    background: rgba(255, 255, 255, 0.08);
    padding: 0.6rem 1rem;
    border-radius: var(--radius-sm);
}

.sidebar__meta-item svg {
    flex-shrink: 0;
    opacity: 0.8;
}

.sidebar__guidelines {
    padding-bottom: var(--space-2xl);
}

.sidebar__declaration {
    margin-bottom: auto;
    padding-bottom: var(--space-2xl);
}

.sidebar__section-title {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted-on-dark);
    margin-bottom: var(--space-md);
}

.sidebar__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.sidebar__list li {
    font-size: 0.9rem;
    color: var(--color-text-muted-on-dark);
    padding-left: var(--space-lg);
    position: relative;
    line-height: 1.5;
}

.sidebar__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
}

/* ---- FAQ Toggle ---- */

.sidebar__faq {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: var(--space-lg);
}

.faq-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: none;
    border: none;
    color: var(--color-text-on-dark);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    padding: var(--space-sm) 0;
    transition: opacity var(--transition-fast);
}

.faq-toggle:hover {
    opacity: 0.85;
}

.faq-toggle__icon {
    transition: transform var(--transition-slow);
}

.faq-toggle[aria-expanded="true"] .faq-toggle__icon {
    transform: rotate(180deg);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), opacity var(--transition-slow);
    opacity: 0;
}

.faq-content.is-open {
    max-height: 200px;
    opacity: 1;
}

.faq-content p {
    font-size: 0.85rem;
    color: var(--color-text-muted-on-dark);
    line-height: 1.6;
    margin-top: var(--space-md);
    margin-bottom: var(--space-md);
}

.faq-content__email {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-on-dark);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-pill);
    transition: background var(--transition-fast);
}

.faq-content__email:hover {
    background: rgba(255, 255, 255, 0.18);
}

/* ---- Form Panel ---- */

.form-panel {
    padding: var(--space-3xl);
    width: 100%;
}

/* ---- Submit Row (Email + Button inline) ---- */

.form-submit-row {
    display: flex;
    align-items: flex-end;
    gap: var(--space-md);
}

.form-submit-row .form-group {
    flex: 1;
    max-width: 400px;
    margin-bottom: 0;
}

.form-submit-row .btn {
    flex-shrink: 0;
}

.form-submit-note {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
    margin-top: var(--space-md);
    max-width: 640px;
}

/* ---- Form Sections ---- */

.form-section {
    border: none;
    margin-bottom: var(--space-2xl);
}

.form-section__title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
    letter-spacing: -0.01em;
}

.form-section__description {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-top: calc(-1 * var(--space-sm));
    margin-bottom: var(--space-lg);
    line-height: 1.5;
}

/* ---- Form Groups ---- */

.form-row--two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.required {
    color: var(--color-error);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-text-primary);
    background: var(--color-bg-input);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    padding: 0.8rem 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #999;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    background: var(--color-white);
    box-shadow: 0 0 0 3px var(--color-focus);
}

.form-group textarea {
    resize: vertical;
    min-height: 300px;
    line-height: 1.7;
}

/* Error state */
.form-group--error input,
.form-group--error textarea {
    border-color: var(--color-error);
    background: var(--color-error-bg);
}

.form-group--error input:focus,
.form-group--error textarea:focus {
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

.form-group__error {
    font-size: 0.8rem;
    color: var(--color-error);
    margin-top: var(--space-xs);
    display: none;
}

.form-group--error .form-group__error {
    display: block;
}

/* ---- Question Cards ---- */

.question-selector {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.question-card {
    display: block;
    cursor: pointer;
    position: relative;
}

.question-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.question-card__content {
    border: 2px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: var(--space-lg) var(--space-xl);
    transition: border-color var(--transition-normal), background var(--transition-normal), box-shadow var(--transition-normal);
}

.question-card:hover .question-card__content {
    border-color: #ccc;
}

.question-card input:focus-visible + .question-card__content {
    box-shadow: 0 0 0 3px var(--color-focus);
}

.question-card input:checked + .question-card__content {
    border-color: var(--color-primary);
    background: var(--color-card-selected);
    box-shadow: 0 0 0 1px var(--color-primary);
}

.question-card__number {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-secondary);
    background: var(--color-bg-input);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-pill);
    margin-bottom: var(--space-md);
}

.question-card input:checked + .question-card__content .question-card__number {
    background: var(--color-primary);
    color: var(--color-white);
}

.question-card__text {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.question-card__instruction {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Question selector error */
.question-selector--error .question-card__content {
    border-color: var(--color-error);
}

/* ---- Word Counter ---- */

.word-counter {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-top: var(--space-sm);
    font-variant-numeric: tabular-nums;
    transition: color var(--transition-fast);
}

.word-counter--warning {
    color: var(--color-warning);
    font-weight: 500;
}

.word-counter--over {
    color: var(--color-error);
    font-weight: 600;
}

/* ---- Buttons ---- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background var(--transition-normal), transform var(--transition-fast), box-shadow var(--transition-normal);
}

.btn--primary {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 0.9rem 2.5rem;
    border-radius: var(--radius-pill);
}

.btn--primary:hover {
    background: var(--color-primary-light);
    box-shadow: 0 4px 12px rgba(20, 40, 40, 0.2);
}

.btn--primary:active {
    transform: scale(0.98);
}

.btn--primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn__loading {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

/* Spinner */
.spinner {
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ---- Form Error ---- */

.form-error {
    margin-top: var(--space-lg);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-error-bg);
    border: 1px solid rgba(220, 38, 38, 0.2);
    border-radius: var(--radius-md);
    color: var(--color-error);
    font-size: 0.875rem;
}

/* ---- Success Message ---- */

.success-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 100vh;
    padding: var(--space-3xl);
    animation: fadeIn 0.5s ease;
}

.success-message__icon {
    color: var(--color-success);
    margin-bottom: var(--space-xl);
    animation: scaleIn 0.4s ease 0.1s both;
}

.success-message__title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.success-message__text {
    font-size: 1rem;
    color: var(--color-text-secondary);
    max-width: 460px;
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.success-message__email {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.5); }
    to { opacity: 1; transform: scale(1); }
}

/* ---- Draft Saved Indicator ---- */

.draft-indicator {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-pill);
    opacity: 0;
    transform: translateY(5px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
    pointer-events: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.draft-indicator.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1023px) {
    .page-container {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: relative;
        height: auto;
    }

    .sidebar__content {
        padding: var(--space-2xl);
    }

    .sidebar__title {
        font-size: 1.6rem;
    }

    .sidebar__guidelines {
        padding-bottom: var(--space-lg);
    }

    .form-panel {
        padding: var(--space-2xl);
        max-width: 100%;
    }
}

@media (max-width: 767px) {
    .sidebar__content {
        padding: var(--space-xl) var(--space-lg);
    }

    .sidebar__logo {
        margin-bottom: var(--space-xl);
    }

    .sidebar__title {
        font-size: 1.4rem;
    }

    .sidebar__header {
        margin-bottom: var(--space-lg);
    }

    .sidebar__meta {
        margin-bottom: var(--space-lg);
    }

    .form-panel {
        padding: var(--space-xl) var(--space-lg);
    }

    .form-submit-row {
        flex-direction: column;
        align-items: stretch;
    }

    .form-submit-row .form-group {
        max-width: 100%;
    }

    .question-card__content {
        padding: var(--space-md) var(--space-lg);
    }

    .form-section__title {
        font-size: 1.1rem;
    }

    .btn--primary {
        width: 100%;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}