/* ========= GLOBAL THEME VARIABLES ========== */
:root {
    /* Typography */
    --font-primary: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.95rem;
    --font-size-lg: 1.2rem;
    --font-size-xl: 1.6rem;

    /* Spacing scale */
    --space-1: clamp(4px, 0.5vw, 8px);
    --space-2: clamp(8px, 1vw, 12px);
    --space-3: clamp(10px, 1.5vw, 14px);
    --space-4: clamp(12px, 1.8vw, 16px);
    --space-5: clamp(14px, 2vw, 22px);
    --space-6: clamp(20px, 3vw, 32px);
    --space-7: clamp(30px, 4vw, 38px);
    --space-8: clamp(36px, 5vw, 60px);

    /* Base colors */
    --color-bg: #f7f7f9;
    --color-surface: #ffffff;
    --color-surface-muted: rgba(255, 255, 255, 0.75);
    --color-text: #333;
    --color-text-muted: #767676;
    --color-border: #dddddd;
    --color-border-light: #efefef;
    --color-neutral-800: #1f2937;
    --color-focus-ring: var(--color-primary-border);

    /* Primary colors */
    --color-primary-bg: #2962ff;
    --color-primary-bg-strong: #1d4fe0;
    --color-primary-text: #ffffff;
    --color-primary-border: #2962ff;

    /* Secondary colors */
    --color-secondary-bg: #6c8ebf;
    --color-secondary-bg-strong: #5a7aa8;
    --color-secondary-text: #ffffff;
    --color-secondary-border: #6c8ebf;

    /* Success colors */
    --color-success-bg-subtle: #e1fbe1;
    --color-success-bg: #04aa6d;
    --color-success-bg-strong: #038d5a;
    --color-success-text: #198754;
    --color-success-border: #04aa6d;
    --color-success-border-soft: rgba(25, 135, 84, 0.2);

    /* Error colors */
    --color-error-bg-subtle: #ffe1e1;
    --color-error-text: #dc3545;
    --color-error-border: #c0392b;
    --color-error-title: #c0392b;

    /* Warning colors */
    --color-warning-bg: #fff8e1;
    --color-warning-text: #e0a800;
    --color-warning-border: #e0a800;

    /* Notice colors */
    --color-notice-border: #9ca3af;

    /* Logout colors */
    --color-logout-bg: #fff2cc;
    --color-logout-card: #fcffe9;

    /* Interaction colors */
    --color-tap-highlight: rgba(0,0,0,0.08);

    /* Radii */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 10px;
    --radius-xl: 14px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 3px 12px rgba(0, 0, 0, 0.10);
    --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.10);
    --shadow-xl: 0 8px 24px rgba(0, 0, 0, 0.08);

    /* Transitions */
    --transition-fast: 0.08s ease;
    --transition-med: 0.15s ease;
    --transition-mod: 0.20s ease;
    --transition-slow: 0.30s ease;
}

/* =============== ANIMATIONS ================ */

.fade-in {
    opacity: 0;
    animation: fadeIn 0.4s ease-out forwards;
}

.fade-out {
    animation: fadeOut 0.4s ease-in forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* Spinner for Send button */
.spinner {
    width: var(--space-3);
    height: var(--space-3);
    border: 2px solid var(--color-focus-ring);
    border-top-color: transparent;
    border-radius: 50%;
    display: inline-block;
    vertical-align: middle;
    margin-left: var(--space-2);
    animation: spin 0.8s linear infinite;
}

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

/* ============== BASE ELEMENTS ============== */

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

html, body {
    height: 100%;
    margin: 0;
}

body {
    display: flex;
    flex-direction: column;
    margin: 0;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    color: var(--color-text);
    line-height: 1.55;
}

h1 {
    margin: var(--space-2) 0 var(--space-1) 0;
    color: var(--color-primary-bg);
}

h2, h3 {
    margin: var(--space-3) 0 0 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-neutral-800);
}

p {
    margin: 0 0 var(--space-3);
}

form {
    margin-top: var(--space-4);
}

input, select, textarea {
    width: 100%;
    box-sizing: border-box;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    margin-bottom: var(--space-5);
}

input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--color-focus-ring);
    outline-offset: 2px;
}

label {
    font-weight: 600;
    margin-bottom: var(--space-2);
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
}

:focus-visible {
    outline: 2px solid var(--color-focus-ring);
    outline-offset: 2px;
}

/* Tap highlight fix (mobile UX) */
a, button {
    -webkit-tap-highlight-color: var(--color-tap-highlight);
}

ul {
  margin-top: 0;
  margin-bottom: var(--space-3);
}

li {
    padding-left: var(--space-2);
}

/* ================ UTILITIES ================ */

.center { text-align: center; }
.muted { color: var(--color-text-muted); font-size: var(--font-size-sm); }
.hidden { display: none !important; }
.full-width { width: 100%; }

.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }

/* Disabled state (centralized) */
.disabled,
button:disabled {
    opacity: 0.5;
    pointer-events: none;
    cursor: not-allowed;
    user-select: none;
}

/* ==== LAYOUT (structural page regions) ===== */

.site-body {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed; /* subtle parallax */
}

.site-body-logout {
    background: var(--color-logout-bg);
}

.site-header {
    display: none;
}

.site-main {
    flex: 1 1 auto;
    overflow: auto;
    min-height: 0;
    padding: var(--space-5) 0;
}

.site-main--centered {
    display: grid;
    place-items: center;
}

.page-content {
    width: 100%;
    max-width: 880px;
    padding: var(--space-2) var(--space-6) var(--space-2);
    margin: 0 auto;

    background: rgba(255,255,255,0.9);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow-wrap: break-word;
}

.site-footer {
    flex-shrink: 0;
    border-top: 1px solid var(--color-border-light); 
    background-color: var(--color-primary-text);
    padding: var(--space-1) var(--space-3) var(--space-1);
}

.minimal-footer {
    margin-top: auto;
    padding: var(--space-1);
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.welcome-section {
    margin: 0 var(--space-2);
}

.content-section {
    margin-bottom: 0;
}

.content-section > * + * {
    margin-top: var(--space-2);
}

.content-section > :first-child {
    margin-top: 0;
}

.info-section {
    margin: var(--space-5) 0 var(--space-2);
    padding: 0 var(--space-3);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-primary-border);
}

/* ===== COMPONENTS (reusable UI pieces) ===== */

/* Buttons */
.btn,
button.btn,
a.btn {
    appearance: none;
    -webkit-appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    --btn-height: 40px;
    height: var(--btn-height);
    padding: 0 var(--space-2);
    line-height: 1;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    box-sizing: border-box;
    transition: background var(--transition-med), transform var(--transition-med);
}

a:active,
.btn:active {
    transform: translateY(1px);
    opacity: 0.85;
}

.btn-primary {
    background-color: var(--color-primary-bg);
    border-color: var(--color-primary-border);
    color: var(--color-primary-text);
}

.btn-primary:hover {
    background-color: var(--color-primary-bg-strong);
    border-color: var(--color-primary-bg-strong);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-secondary-bg);
    border-color: var(--color-secondary-border);
    color: var(--color-secondary-text);
}

.btn-secondary:hover {
    background-color: var(--color-secondary-bg-strong);
    border-color: var(--color-secondary-bg-strong);
    box-shadow: var(--shadow-md);
}

.btn-success {
    background-color: var(--color-success-bg);
    border-color: var(--color-success-border);
    color: var(--color-primary-text);
}

.btn-success:hover {
    background-color: var(--color-success-bg-strong);
    border-color: var(--color-success-bg-strong);
    box-shadow: var(--shadow-md);
}

/* Button-specific disabled refinements */
.btn.disabled,
button.btn:disabled {
    cursor: not-allowed;
    filter: grayscale(40%);
}

.btn:disabled:hover {
    background: inherit;
}

.btn-sm { --btn-height: 32px; }
.btn-md { --btn-height: 40px; }
.btn-lg { --btn-height: 48px; }

.btn-group {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-4);
    margin-bottom: var(--space-2);
}

.btn-group-left {
    justify-content: flex-start;
}

.btn-group-center {
    justify-content: center;
}

.btn-group-split {
    justify-content: space-between;
}

.btn-group-split:has(.btn:only-child) {
    justify-content: flex-end;
}

.form-group {
    margin-top: var(--space-3);
}

.form-group:first-child {
    margin-top: 0;
}

.form-group label {
    display: block;
    margin-bottom: var(--space-1);
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    display: block;
    width: 100%;
    max-width: 480px;
}

/* Form status box enhancements */
.form-status {
    margin-top: var(--space-3);
    margin-bottom: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity var(--transition-mod), transform var(--transition-mod);
    animation: fadeIn 0.4s ease forwards;
}

.form-status.hidden {
    display: none;
}

.form-status:not(.hidden) {
    opacity: 1;
    transform: translateY(0);
}

.form-status.success {
    display: block;
    background: var(--color-success-bg-subtle);
    border: 1px solid var(--color-success-border);
    padding: var(--space-3);
    border-radius: var(--radius-md);
}

.form-status.error {
    display: block;
    background: var(--color-error-bg-subtle);
    border: 1px solid var(--color-error-border);
}

/* Alerts */
.alert {
    padding: var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.alert.success {
    background: var(--color-success-bg-subtle);
    border: 1px solid var(--color-success-border);
}

.alert.error {
    background: var(--color-error-bg-subtle);
    border: 1px solid var(--color-error-border);
}

.notice-block {
    margin-top: var(--space-3);
    margin-bottom: var(--space-3);
    padding: var(--space-2) var(--space-3);
    background-color: var(--color-surface-muted);
    border: 1px solid var(--color-border-light);
    border-left: 6px solid var(--color-notice-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.warning-block {
    margin-top: var(--space-3);
    padding: var(--space-1) var(--space-3);
    border: 1px solid var(--color-border-light);
    border-left: 5px solid var(--color-warning-border);
    background: var(--color-warning-bg);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

/* Footer navigation */
.footer-nav {
    width: 100%;
    margin-bottom: var(--space-1);
}

.footer-nav a:link,
.footer-nav a:visited {
    color: var(--color-text);
}

.footer-nav a:hover {
    color: var(--color-primary-bg-strong);
}

.footer-nav a:active {
    transform: translateY(1px);
    opacity: 0.8;
}

.footer-list {
    display: grid;
    gap: var(--space-1);
    grid-template-columns: repeat(auto-fit, minmax(min(120px, 100%),1fr));
    list-style: none;
    padding: 0;
    margin: 0;
    justify-items: center;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}

.footer-list li {
    white-space: nowrap;
}

/* Unified styling for <a> link + disabled <span> */
.footer-list a,
.footer-list .nav-disabled {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    min-width: fit-content;

    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 500;
    transition: background var(--transition-med), color var(--transition-med), transform var(--transition-fast);
}

.footer-list a {
    position: relative;
    transition: background 180ms cubic-bezier(.4,0,.2,1), transform var(--transition-med), box-shadow var(--transition-med);
}

.footer-list a::after {
    content: "";
    position: absolute;
    left: 20%;
    right: 20%;
    bottom: 4px;
    height: 2px;
    background: currentColor;
    opacity: 0;
    transform: scaleX(0.6);
    transition: all var(--transition-med);
}

.footer-list a:hover::after {
    opacity: 0.6;
    transform: scaleX(1);
}

/* Hover (only for real links) */
.footer-list a:hover {
    background: var(--color-border-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* Focus (keyboard accessibility) */
.footer-list a:focus-visible {
    outline: 2px solid rgba(0, 0, 0, 0.25);
    outline-offset: 2px;
}

/* Active (click feedback) */
.footer-list a:active {
    transform: scale(0.97);
    box-shadow: none;
}

/* Current page → (span or a) */
.footer-list [aria-current="page"] {
    font-weight: 600;
    opacity: 0.75;
}

/* Nav-specific disabled refinements */
.footer-list .nav-disabled {
    cursor: default;
    opacity: 0.4;
    pointer-events: none;
    user-select: none;
}

.footer-list .nav-disabled:hover {
    background: none;
    transform: none;
}

/* Cookie Help */
.cookie-help {
    margin-top: var(--space-2);
}

.cookie-help summary {
    cursor: pointer;
    font-weight: 500;
}

.cookie-instructions {
    margin-top: var(--space-1);
}

.cookie-instructions p {
    margin: var(--space-1) 0;
}

/* ====== PAGES (page-specific features ====== */

/* Survey Page */

.question-block {
    position: relative;
    padding: var(--space-4) var(--space-5);
    border: 1px solid var(--color-border-light);
    margin-bottom: var(--space-4);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    user-select: none;
    transition: background var(--transition-med), border-color var(--transition-med), box-shadow var(--transition-med);
}

.question-block:hover {
    background: rgba(0,0,0,0.015);
    box-shadow: var(--shadow-md);
}

.question-block:focus-within {
    outline: 2px solid rgba(13,110,253,0.25);
    outline-offset: 2px;
}

.question-block.pending { 
    border-left: 6px solid var(--color-primary-bg); 
    background: rgba(0, 123, 255, 0.05);
    --question-accent: rgba(0, 123, 255, 0.05);
}

.question-block.saved {
    border-left: 6px solid var(--color-success-border);
    background: rgba(144, 238, 144, 0.05);
    --question-accent: rgba(144, 238, 144, 0.15);
}

.question-block.saved .question-number {
    color: var(--color-success-text);
    background: var(--color-success-bg-subtle);
    border-color: var(--color-success-border-soft);
}

.question-block.saved input[type="radio"] {
    accent-color: var(--color-success-text);
}

.question-block.error {
    border-left: 6px solid var(--color-error-border);
    background: rgba(220, 53, 69, 0.05);
    --question-accent: rgba(220, 53, 69, 0.08);
}

.question-block.error .question-number {
    color: var(--color-error-text);
    background: var(--color-error-bg-subtle);
    border-color: rgba(220, 53, 69, 0.2);
}

.question-block.error input[type="radio"] {
    accent-color: var(--color-error-text);
}

.question-block.saved-flash {
    animation: savedFlash 220ms ease-out;
}

@keyframes savedFlash {
    0% {
        background-color: rgba(25,135,84,0.15);
    }

    100% {
        background-color: transparent;
    }
}

.question-block.saving {
    background-color: rgba(13,110,253,0.06);
    transition: background-color var(--transition-med);
}

.question-block.saving::after {
    content: "";
    position: absolute;
    right: 12px;
    top: 50%;
    width: 14px;
    height: 14px;
    margin-top: -7px;
    border: 2px solid rgba(0,0,0,0.2);
    border-top-color: rgba(0,0,0,0.6);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.question-block:last-child {
    border-bottom: none;
}

.question-label {
    display: flex;
    gap: var(--space-3);
    align-items: center;
    margin-bottom: var(--space-1);
    line-height: 1.45;
}

.question-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary-bg-strong);
    background: linear-gradient(
        180deg,
        #f0f6ff 0%,
        #e2ecff 100%
    );
    border: 1px solid rgba(13,110,253,0.15);
    box-shadow:
        0 1px 1px rgba(0,0,0,0.08),
        inset 0 1px 0 rgba(255,255,255,0.7);
    flex-shrink: 0;
}

.radio-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-top: var(--space-4);
    margin-left: 0;
    gap: var(--space-1);
}

.radio-group label {
    display: inline-flex;
    align-items: center;
    border-radius: var(--radius-md);
    gap: var(--space-2);
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
    transition: background-color var(--transition-med);
}

.radio-group label:hover {
    background: var(--question-accent);
}

.radio-group input[type="radio"] {
    accent-color: var(--color-primary-bg);
    cursor: pointer;
    transform: scale(1.05);
    transition: filter var(--transition-med);
    margin: 0 var(--space-3) 0 var(--space-3);
}

.radio-group input[type="radio"]:hover {
    filter: brightness(1.1);
}

.radio-group input[type="radio"]:disabled {
    opacity: 0.6;
    cursor: wait;
}

.saved-date {
    align-self: flex-start;
    margin-left: var(--space-1);
    margin-top: var(--space-1);
    font-size: var(--font-size-sm);
    color: var(--color-success-text);
}

.inline-error {
    min-height: 1.2rem;
    margin-left: 0.5rem;
    margin-top: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-error-text);
}

/* Finish Page */

.completion-badge {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 3rem;
    color: var(--color-success-text);
    margin-top: var(--space-2);
    margin-bottom: var(--space-1);
    animation: popCheck 800ms ease-out;
}

@keyframes popCheck {
    0% {
        transform: scale(0.4);
        opacity: 0;
    }
    70% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.completion-badge::before,
.completion-badge::after {
    content: "✨";
    margin-left: var(--space-1);
    margin-right: var(--space-1);
    font-size: 1.2rem;
    animation: sparkle 800ms ease-out;
}

@keyframes sparkle {
    0% { opacity: 0; transform: scale(0.5); }
    50% { opacity: 1; }
    100% { opacity: 0; transform: scale(1.3); }
}

.checkmark {
    display: inline-block;
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
    color: var(--color-success-text);
}

.finish-divider {
    margin: var(--space-3) 0 var(--space-3);
    height: 2px;
    background: linear-gradient(to right, transparent, var(--color-primary-bg), transparent);
}

.card-draw form,
.card-draw fieldset {
    display: block;
}

.card-draw label {
    display: block;
    margin-top: var(--space-3);
}

.card-draw input[type="email"],
.card-draw select {
    display: block;
    width: 100%;
    max-width: 400px;
    margin-top: var(--space-1);
    transition: border-color var(--transition-med), box-shadow var(--transition-med);
}

.card-draw input:focus,
.card-draw select:focus {
    outline: none;
    border-color: var(--color-primary-border);
    box-shadow: 0 0 0 3px rgba(13,110,253,0.15);
}

.card-draw .checkbox-row {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.card-draw .checkbox-row label {
    display: inline;
    width: auto;
    margin: 0;
}

.card-draw .checkbox-row input[type="checkbox"] {
    width: auto;
    flex: 0 0 auto;
}

.card-draw button {
    display: inline-block;
    width: auto;
    margin-top: var(--space-3);
}

.checkbox-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-2);
    margin: var(--space-5) 0;
    padding: var(--space-1);
    border-radius: var(--radius-sm);
    transition: background var(--transition-med);
}

.checkbox-row label {
    margin: 0;
}

.checkbox-row input[type="checkbox"] {
    margin-right: var(--space-4);
    transition: transform var(--transition-fast);
}

.checkbox-row input[type="checkbox"]:active {
    transform: scale(0.9);
}

.checkbox-row:hover {
    background: rgba(0,0,0,0.03);
}

/* Consent Page */

/* Card */
.card {
    background: var(--color-bg);
    padding: var(--space-5) var(--space-2) var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    margin-bottom: var(--space-3);
}

.consent-list {
    margin: 0 var(--space-2) var(--space-5);
    padding-left: var(--space-3);
}

.consent-list li {
    margin-bottom: var(--space-1);
}

/* FAQ Page */

.faq-card {
    background-color: rgba(255, 255, 255, 0.85);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    margin-bottom: var(--space-3);
}

.faq-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    justify-content: space-between;
}

.faq-controls { 
    display:flex; 
    color: var(--color-primary-bg); 
    margin-bottom: var(--space-3); 
    gap: var(--space-3);
    justify-content:flex-end; 
}

.faq-question {
    flex: 1 1 auto;
    font-weight: 600;
    color: var(--color-success-text);
}

.faq-answer {
    display: none;
    margin-top: var(--space-3);
    color: var(--color-text);
}

.faq-answer.expanded { display: block; }

.faq-toggle {
    background: none;
    border: none;
    font-size: 22px;
    padding: 0;
    width: 30px;
    height: 30px;
    cursor: pointer;
    color: var(--color-primary-bg);
    display: inline-flex;
    font-weight: bold;
    user-select: none;
    margin-right: var(--space-1);
    align-items: center;
    justify-content: center;
    transition: color var(--transition-med), transform var(--transition-med);
}

.faq-toggle.plus::after { content: "+"; }
.faq-toggle.minus::after { content: "−"; }

.faq-toggle:hover {
    color: var(--color-primary-bg-strong);
}

/* About Page */

.about-page h2 {
    margin-top: var(--space-5);
}

.about-page h1 + h2 {
    margin-top: 0;
}

/* Cards */
.project-card {
    background-color: rgba(255, 255, 255, 0.85);
    padding: var(--space-2) var(--space-4) var(--space-1);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.profile-card {
    background-color: rgba(255, 255, 255, 0.85);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    margin-bottom: var(--space-3);
}

.profile-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.profile-card-top {
    display: flex;
    gap: var(--space-3);
    align-items: center;
}

/* Profile image */
.profile-card img {
    width: 90px;
    height: 90px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

/* Text block beside the image */
.profile-info {
    display: flex;
    flex-direction: column;
}

.profile-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}

.profile-role {
    font-size: 1rem;
    color: var(--color-text-muted);
}

.profile-contact {
    font-size: var(--font-size-sm);
}

.profile-bio { 
    background: rgba(255,255,255,0.8);
    padding: var(--space-3);
    border-radius: var(--radius-md);
}

/* Collapsible content base */
.collapsible-content {
    margin-top: var(--space-2);
    display: none;
}

/* Smooth animation */
.collapsible.open .collapsible-content {
    animation: expand 0.25s ease-out;
}

@keyframes expand {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Toggle icons (reuse FAQ styles) */
.profile-toggle {
    cursor: pointer;
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

/* Logout.php | fatal_error.php Pages */

.message-card {
    max-width: min(720px, 90vw);
    padding: var(--space-3) var(--space-4);
    border: 4px solid var(--color-warning-border);
    border-radius: var(--radius-lg);
    background: var(--color-logout-card);
    display: grid;
    justify-content: center;
    justify-items: center;
    text-align: center;
}

.message-card > * + * {
    margin: var(--space-2) 0 var(--space-2);
}

.message-card h1 {
    font-size: 1.5rem;
    margin-top: var(--space-1);
    font-weight: 600;
    line-height: 1.3;
}

.message-card p {
    font-size: 1.1rem;
}

.error-title {
    color: var(--color-error-title);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

/* ====== DEVICE VIEWPORT ENHANCEMENTS ======= */

/* Desktop enhancement */
@media (min-width: 900px) {
    .footer-list {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: var(--space-2);
    }
}

/* Mobile enhancement */
@media (max-width: 640px) {
    .site-main {
        padding: var(--space-3) 0;
    }

    .page-content {
        padding: var(--space-1) var(--space-2) var(--space-1);
    }

    h2 {
        font-size: var(--font-size-base);
    }
    
    .profile-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }

    .profile-card-top {
        flex-direction: column;
        text-align: center;
    }

    .profile-toggle {
        align-self: center;
    }
}