/* ═══════════════════════════════════════════════════════════
   NIHILO DESIGN SYSTEM — Lucius Nihil
   Plataforma de Estudos
   ═══════════════════════════════════════════════════════════ */

:root {
    --void-black: #050507;
    --deep-void: #0A0A0F;
    --emergence-cyan: #00E5FF;
    --glow-cyan: #00D4FF;
    --creation-amber: #FFB800;
    --amber-soft: #E5A600;
    --white: #FFFFFF;
    --gray-subtle: #1A1A1F;
    --gray-text: #8A8A95;
    --gray-muted: #4A4A55;
    --error-red: #FF4455;
    --success-green: #00CC88;

    /* Accent — cor primaria da plataforma Nihil (amber) */
    --accent: var(--creation-amber);
    --accent-soft: var(--amber-soft);
}

/* ═══════════════════════════════════════
   RESET + BASE
   ═══════════════════════════════════════ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'JetBrains Mono', monospace;
    background: var(--void-black);
    color: var(--gray-text);
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Noise overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 1000;
}

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

/* ═══════════════════════════════════════
   TYPOGRAPHY
   ═══════════════════════════════════════ */

.font-display {
    font-family: 'Jura', sans-serif;
}

.text-cyan { color: var(--emergence-cyan); }
.text-amber { color: var(--creation-amber); }
.text-white { color: var(--white); }
.text-muted { color: var(--gray-muted); }

/* ═══════════════════════════════════════
   PAGE LAYOUT
   ═══════════════════════════════════════ */

.page-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.page-header {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 1.2rem 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(to bottom, var(--void-black) 0%, rgba(5, 5, 7, 0.95) 60%, rgba(5, 5, 7, 0.8) 100%);
    border-bottom: 1px solid var(--gray-subtle);
    backdrop-filter: blur(12px);
}

.page-header__logo {
    font-family: 'Jura', sans-serif;
    font-weight: 300;
    font-size: 1.1rem;
    color: var(--accent);
    letter-spacing: 0.25em;
    transition: text-shadow 0.3s ease;
}

.page-header__logo:hover {
    text-shadow: 0 0 20px rgba(255, 184, 0, 0.3);
}

.page-header__right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.page-header__user {
    font-size: 0.75rem;
    color: var(--gray-text);
    letter-spacing: 0.05em;
}

.page-header__logout {
    font-size: 0.7rem;
    color: var(--gray-muted);
    letter-spacing: 0.1em;
    cursor: pointer;
    background: none;
    border: 1px solid var(--gray-subtle);
    padding: 0.4rem 1rem;
    font-family: 'JetBrains Mono', monospace;
    transition: all 0.3s ease;
}

.page-header__logout:hover {
    color: var(--accent);
    border-color: rgba(255, 184, 0, 0.3);
}

.page-content {
    flex: 1;
    padding: 3rem 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* ═══════════════════════════════════════
   SECTION HEADERS
   ═══════════════════════════════════════ */

.section-label {
    font-size: 0.65rem;
    color: var(--accent);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    opacity: 0.7;
}

.section-title {
    font-family: 'Jura', sans-serif;
    font-weight: 300;
    font-size: 1.8rem;
    color: var(--white);
    letter-spacing: 0.06em;
    margin-bottom: 0.75rem;
}

.section-divider {
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, var(--accent), transparent);
    margin-bottom: 2rem;
}

/* ═══════════════════════════════════════
   CARDS
   ═══════════════════════════════════════ */

.card {
    background: var(--deep-void);
    border: 1px solid var(--gray-subtle);
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
}

.card:hover {
    transform: translateY(-2px);
}

.card--cyan::before {
    background: linear-gradient(90deg, var(--emergence-cyan), transparent);
}

.card--cyan:hover {
    box-shadow: 0 6px 30px rgba(0, 229, 255, 0.08), 0 0 1px rgba(0, 229, 255, 0.2);
}

.card--amber::before {
    background: linear-gradient(90deg, var(--creation-amber), transparent);
}

.card--amber:hover {
    box-shadow: 0 6px 30px rgba(255, 184, 0, 0.08), 0 0 1px rgba(255, 184, 0, 0.2);
}

.card--clickable {
    cursor: pointer;
}

.card__title {
    font-family: 'Jura', sans-serif;
    font-weight: 400;
    font-size: 1.2rem;
    color: var(--white);
    letter-spacing: 0.04em;
    margin-bottom: 0.5rem;
}

.card__subtitle {
    font-size: 0.75rem;
    color: var(--gray-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.card__text {
    font-size: 0.82rem;
    color: var(--gray-text);
    line-height: 1.7;
}

/* ═══════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    padding: 0.7rem 1.5rem;
    border: 1px solid;
    background: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn--cyan {
    color: var(--emergence-cyan);
    border-color: rgba(0, 229, 255, 0.4);
}

.btn--cyan:hover {
    background: rgba(0, 229, 255, 0.08);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.1);
}

.btn--amber {
    color: var(--creation-amber);
    border-color: rgba(255, 184, 0, 0.4);
}

.btn--amber:hover {
    background: rgba(255, 184, 0, 0.08);
    box-shadow: 0 0 20px rgba(255, 184, 0, 0.1);
}

.btn--solid-cyan {
    color: var(--void-black);
    background: var(--emergence-cyan);
    border-color: var(--emergence-cyan);
    font-weight: 500;
}

.btn--solid-cyan:hover {
    background: var(--glow-cyan);
    box-shadow: 0 0 30px rgba(0, 229, 255, 0.3);
}

.btn--solid-amber {
    color: var(--void-black);
    background: var(--creation-amber);
    border-color: var(--creation-amber);
    font-weight: 500;
}

.btn--solid-amber:hover {
    background: var(--amber-soft);
    box-shadow: 0 0 30px rgba(255, 184, 0, 0.3);
}

.btn--ghost {
    color: var(--gray-muted);
    border-color: var(--gray-subtle);
}

.btn--ghost:hover {
    color: var(--gray-text);
    border-color: var(--gray-muted);
}

.btn--full {
    width: 100%;
    justify-content: center;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.btn__arrow {
    transition: transform 0.3s ease;
}

.btn:hover .btn__arrow {
    transform: translateX(4px);
}

/* ═══════════════════════════════════════
   INPUTS
   ═══════════════════════════════════════ */

.input-group {
    margin-bottom: 1.5rem;
}

.input-label {
    display: block;
    font-size: 0.7rem;
    color: var(--gray-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.input {
    width: 100%;
    padding: 0.8rem 1rem;
    background: var(--deep-void);
    border: 1px solid var(--gray-subtle);
    color: var(--white);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

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

.input:focus {
    border-color: rgba(255, 184, 0, 0.4);
    box-shadow: 0 0 0 1px rgba(255, 184, 0, 0.1);
}

.input--error {
    border-color: rgba(255, 68, 85, 0.5);
}

.input--error:focus {
    border-color: rgba(255, 68, 85, 0.7);
    box-shadow: 0 0 0 1px rgba(255, 68, 85, 0.1);
}

textarea.input {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

select.input {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%234A4A55'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* ═══════════════════════════════════════
   TAB SELECTOR (PILL)
   ═══════════════════════════════════════ */

.tab-selector {
    display: inline-flex;
    background: var(--gray-subtle);
    border-radius: 2rem;
    padding: 4px;
    position: relative;
}

.tab-selector__pill {
    position: absolute;
    top: 4px;
    bottom: 4px;
    left: 4px;
    width: calc(33.333% - 4px);
    background: rgba(255, 184, 0, 0.15);
    border-radius: 2rem;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.tab-selector__btn {
    flex: 1;
    padding: 0.6rem 1.4rem;
    background: none;
    border: none;
    color: var(--gray-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: pointer;
    position: relative;
    z-index: 1;
    transition: color 0.3s ease;
    white-space: nowrap;
}

.tab-selector__btn--active {
    color: var(--white);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content--active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════════════════════════
   AUTH TABS (SIMPLE)
   ═══════════════════════════════════════ */

.auth-tabs {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid var(--gray-subtle);
}

.auth-tabs__btn {
    padding: 0.8rem 0;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--gray-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: -1px;
}

.auth-tabs__btn--active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.auth-tabs__btn:hover:not(.auth-tabs__btn--active) {
    color: var(--gray-text);
}

/* ═══════════════════════════════════════
   ADMIN TABS (UNDERLINE)
   ═══════════════════════════════════════ */

.admin-tabs {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--gray-subtle);
}

.admin-tabs__btn {
    padding: 0.7rem 0;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--gray-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: -1px;
}

.admin-tabs__btn--active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* ═══════════════════════════════════════
   NOTIFICATIONS
   ═══════════════════════════════════════ */

.notification {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    padding: 1rem 1.5rem;
    font-size: 0.78rem;
    letter-spacing: 0.05em;
    z-index: 500;
    border-left: 3px solid;
    background: var(--deep-void);
    animation: slideIn 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
    max-width: 400px;
}

.notification--success {
    color: var(--success-green);
    border-left-color: var(--success-green);
}

.notification--error {
    color: var(--error-red);
    border-left-color: var(--error-red);
}

.notification--info {
    color: var(--accent);
    border-left-color: var(--accent);
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; pointer-events: none; }
}

/* ═══════════════════════════════════════
   PROGRESS BAR
   ═══════════════════════════════════════ */

.progress-bar {
    width: 100%;
    height: 3px;
    background: var(--gray-subtle);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 1rem;
}

.progress-bar__fill {
    height: 100%;
    background: var(--emergence-cyan);
    border-radius: 2px;
    transition: width 0.4s ease;
}

.progress-bar__fill--amber {
    background: var(--creation-amber);
}

/* ═══════════════════════════════════════
   EXAM CARDS
   ═══════════════════════════════════════ */

.exam-card {
    background: var(--deep-void);
    border: 1px solid var(--gray-subtle);
    border-left: 3px solid var(--accent);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    transition: border-color 0.3s ease;
}

.exam-card--urgent {
    border-left-color: var(--error-red);
}

.exam-card__date {
    text-align: center;
    min-width: 60px;
}

.exam-card__day {
    font-family: 'Jura', sans-serif;
    font-weight: 400;
    font-size: 1.8rem;
    color: var(--white);
    line-height: 1;
}

.exam-card__month {
    font-size: 0.65rem;
    color: var(--gray-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.exam-card__info {
    flex: 1;
}

.exam-card__title {
    font-family: 'Jura', sans-serif;
    font-size: 1rem;
    color: var(--white);
    letter-spacing: 0.04em;
    margin-bottom: 0.3rem;
}

.exam-card__subject {
    font-size: 0.72rem;
    color: var(--gray-muted);
}

.exam-card__countdown {
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    white-space: nowrap;
}

/* ═══════════════════════════════════════
   GRID LAYOUTS
   ═══════════════════════════════════════ */

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.5rem;
}

.stack {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.stack--lg {
    gap: 2rem;
}

/* ═══════════════════════════════════════
   CHAT PANEL
   ═══════════════════════════════════════ */

.chat-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: var(--deep-void);
    border: 1px solid var(--gray-subtle);
    color: var(--accent);
    font-family: 'Jura', sans-serif;
    font-size: 1.3rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
    z-index: 200;
}

.chat-toggle:hover {
    border-color: rgba(255, 184, 0, 0.4);
    box-shadow: 0 0 25px rgba(255, 184, 0, 0.15);
    transform: scale(1.05);
}

.chat-panel {
    position: fixed;
    bottom: 5.5rem;
    right: 2rem;
    width: 380px;
    max-height: 500px;
    background: var(--deep-void);
    border: 1px solid var(--gray-subtle);
    display: none;
    flex-direction: column;
    z-index: 200;
    animation: chatOpen 0.25s ease;
}

.chat-panel--open {
    display: flex;
}

@keyframes chatOpen {
    from { opacity: 0; transform: translateY(10px) scale(0.97); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.chat-panel__header {
    padding: 1rem 1.2rem;
    border-bottom: 1px solid var(--gray-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-panel__title {
    font-family: 'Jura', sans-serif;
    font-size: 0.85rem;
    color: var(--gray-text);
    letter-spacing: 0.08em;
}

.chat-panel__close {
    background: none;
    border: none;
    color: var(--gray-muted);
    font-size: 1rem;
    cursor: pointer;
    padding: 0.2rem;
    transition: color 0.3s ease;
}

.chat-panel__close:hover {
    color: var(--white);
}

.chat-panel__messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    min-height: 200px;
    max-height: 320px;
}

.chat-msg {
    max-width: 85%;
    padding: 0.7rem 1rem;
    font-size: 0.78rem;
    line-height: 1.6;
}

.chat-msg--user {
    align-self: flex-end;
    background: var(--gray-subtle);
    color: var(--white);
    border-radius: 12px 12px 2px 12px;
}

.chat-msg--ai {
    align-self: flex-start;
    border-left: 2px solid var(--accent);
    color: var(--gray-text);
    padding-left: 1rem;
}

.chat-msg--loading {
    align-self: flex-start;
    color: var(--accent);
    font-size: 1rem;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

.chat-panel__input {
    padding: 0.8rem 1rem;
    border-top: 1px solid var(--gray-subtle);
    display: flex;
    gap: 0.5rem;
}

.chat-panel__input input {
    flex: 1;
    padding: 0.6rem 0.8rem;
    background: var(--void-black);
    border: 1px solid var(--gray-subtle);
    color: var(--white);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.chat-panel__input input:focus {
    border-color: rgba(255, 184, 0, 0.3);
}

.chat-panel__input button {
    padding: 0.6rem 1rem;
    background: none;
    border: 1px solid rgba(255, 184, 0, 0.4);
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.05em;
}

.chat-panel__input button:hover {
    background: rgba(255, 184, 0, 0.08);
}

/* ═══════════════════════════════════════
   CONTENT RENDERING
   ═══════════════════════════════════════ */

.content-area {
    font-size: 0.88rem;
    color: var(--gray-text);
    line-height: 1.85;
    margin-top: 2rem;
}

.content-area h1,
.content-area h2,
.content-area h3 {
    font-family: 'Jura', sans-serif;
    color: var(--white);
    margin: 2rem 0 1rem;
}

.content-area h1 { font-size: 1.6rem; font-weight: 400; }
.content-area h2 { font-size: 1.3rem; font-weight: 400; }
.content-area h3 { font-size: 1.1rem; font-weight: 400; }

.content-area p {
    margin-bottom: 1rem;
}

.content-area strong {
    color: var(--white);
}

.content-area em {
    color: var(--accent);
    font-style: italic;
}

.content-area ul,
.content-area ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.content-area li {
    margin-bottom: 0.5rem;
}

.content-area code {
    background: var(--gray-subtle);
    padding: 0.15rem 0.4rem;
    font-size: 0.82rem;
    color: var(--accent);
}

.content-area blockquote {
    border-left: 2px solid var(--accent);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    background: rgba(255, 184, 0, 0.03);
    font-style: italic;
}

/* ═══════════════════════════════════════
   EMPTY STATE
   ═══════════════════════════════════════ */

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--gray-muted);
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

/* ═══════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════ */

.page-footer {
    padding: 2rem 2.5rem;
    border-top: 1px solid var(--gray-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.page-footer__logo {
    font-family: 'Jura', sans-serif;
    font-weight: 300;
    font-size: 0.85rem;
    color: var(--accent);
    letter-spacing: 0.15em;
}

.page-footer__info {
    font-size: 0.65rem;
    color: var(--gray-muted);
    letter-spacing: 0.1em;
}

/* ═══════════════════════════════════════
   LOADING
   ═══════════════════════════════════════ */

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-subtle);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.page-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

/* ═══════════════════════════════════════
   ADMIN LIST ITEMS
   ═══════════════════════════════════════ */

.list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--gray-subtle);
    font-size: 0.82rem;
}

.list-item:last-child {
    border-bottom: none;
}

.list-item__text {
    color: var(--gray-text);
}

.list-item__actions {
    display: flex;
    gap: 0.5rem;
}

.list-item__btn {
    background: none;
    border: none;
    color: var(--gray-muted);
    font-size: 0.75rem;
    cursor: pointer;
    padding: 0.3rem 0.5rem;
    font-family: 'JetBrains Mono', monospace;
    transition: color 0.3s ease;
}

.list-item__btn:hover {
    color: var(--white);
}

.list-item__btn--danger:hover {
    color: var(--error-red);
}

/* ═══════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════ */

@media (max-width: 968px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .grid-3 {
        grid-template-columns: 1fr 1fr;
    }

    .page-content {
        padding: 2.5rem 2rem;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 1rem 1.5rem;
    }

    .page-content {
        padding: 2rem 1.5rem;
    }

    .grid-3 {
        grid-template-columns: 1fr;
    }

    .exam-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .chat-panel {
        right: 1rem;
        left: 1rem;
        width: auto;
        bottom: 5rem;
    }

    .tab-selector {
        width: 100%;
    }

    .tab-selector__btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.62rem;
    }

    .page-footer {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .page-header__logo {
        font-size: 0.95rem;
    }

    .page-header__user {
        display: none;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .card {
        padding: 1.5rem;
    }

    .chat-toggle {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 42px;
        height: 42px;
        font-size: 1.1rem;
    }
}