/* ============================================================
   Mulanui — Page Shell (Shared)
   ------------------------------------------------------------
   Shell for centered-card pages (auth, errors, ...)
   - Background + floating orbs
   - Centered card (header / body / footer)
   - Language switcher
   - Theme toggle
   ============================================================ */

/* ============================================================
   1. Reset + Body
   ============================================================ */
.page-body {
    font-family: var(--font-family);
    background-color: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition-slow), color var(--transition-slow);
    overflow-x: hidden;
    margin: 0;
}

/* ============================================================
   2. Background layer + orbs
   ============================================================ */
.page-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.page-bg::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 15% 20%, var(--primary-soft), transparent 55%),
        radial-gradient(circle at 85% 80%, var(--primary-soft), transparent 55%);
}

.page-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.4;
    will-change: transform;
    pointer-events: none;
}

.page-orb--1 {
    width: 520px;
    height: 520px;
    background: var(--primary-color);
    top: -140px;
    inset-inline-start: -120px;
    animation: pageOrbFloat 22s ease-in-out infinite;
}

.page-orb--2 {
    width: 440px;
    height: 440px;
    background: var(--secondary-color);
    bottom: -160px;
    inset-inline-end: -100px;
    animation: pageOrbFloat 28s ease-in-out infinite reverse;
}

.page-orb--3 {
    width: 340px;
    height: 340px;
    background: var(--info-color);
    top: 40%;
    inset-inline-start: 55%;
    opacity: 0.22;
    animation: pageOrbFloat 32s ease-in-out infinite;
}

@keyframes pageOrbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33%      { transform: translate(46px, -54px) scale(1.1); }
    66%      { transform: translate(-34px, 42px) scale(0.93); }
}

@media (prefers-reduced-motion: reduce) {
    .page-orb { animation: none !important; }
}

/* ============================================================
   3. Page wrapper (centers the card)
   ============================================================ */
.page-shell {
    position: relative;
    z-index: 1;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 56px 24px;
}

/* ============================================================
   4. Card
   ============================================================ */
.page-card {
    width: 100%;
    max-width: 620px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    position: relative;
    backdrop-filter: blur(24px) saturate(140%);
    -webkit-backdrop-filter: blur(24px) saturate(140%);
    box-shadow:
        0 24px 64px rgba(0, 0, 0, 0.35),
        0 0 0 1px rgba(255, 255, 255, 0.03) inset;
    animation: pageCardIn 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes pageCardIn {
    from { opacity: 0; transform: translateY(14px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
    .page-card { animation: none !important; }
}

/* ---- Card backgrounds per theme ---- */
[data-theme="dark"] .page-card {
    background: rgba(22, 25, 37, 0.85);
}

[data-theme="light"] .page-card {
    background: rgba(255, 255, 255, 0.92);
    box-shadow:
        0 24px 64px rgba(15, 23, 42, 0.12),
        0 0 0 1px rgba(15, 23, 42, 0.02) inset;
}

[data-theme="gaming"] .page-card {
    background: rgba(22, 12, 40, 0.72);
    border-color: rgba(168, 85, 247, 0.35);
    box-shadow:
        0 24px 64px rgba(0, 0, 0, 0.4),
        0 0 40px rgba(168, 85, 247, 0.18);
}

/* ---- Card sections ---- */
.page-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 20px 36px;
    border-bottom: 1px solid var(--border-color);
}

.page-card__body {
    padding: 28px 44px 32px;
}

.page-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 36px;
    border-top: 1px solid var(--border-color);
    min-height: 76px;
}

/* ============================================================
   5. Back button + Switch hint
   ============================================================ */
.page-back-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-main);
    text-decoration: none;
    transition: var(--transition-fast);
    cursor: pointer;
    flex-shrink: 0;
}

.page-back-btn:hover {
    background: var(--primary-soft);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.page-back-btn i { font-size: 14px; }

.page-switch-hint {
    font-size: var(--fs-sm);
    color: var(--text-muted);
    text-align: end;
    line-height: 1.5;
}

.page-switch-hint a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: var(--fw-bold);
    margin-inline-start: 4px;
    transition: color var(--transition-fast);
}

.page-switch-hint a:hover { text-decoration: underline; }

/* ============================================================
   6. Language switcher
   ============================================================ */
.page-lang { position: relative; }

.page-lang__trigger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 38px;
    padding: 0 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-family: var(--font-family);
    font-size: var(--fs-sm);
    font-weight: var(--fw-bold);
    cursor: pointer;
    transition: var(--transition-fast);
    line-height: 1;
}

.page-lang__trigger:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.page-lang__trigger .flag { font-size: 14px; }
.page-lang__trigger .code { letter-spacing: 0.5px; }

.page-lang__menu {
    position: absolute;
    bottom: calc(100% + 6px);
    inset-inline-start: 0;
    min-width: 170px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-modal);
    padding: 6px;
    z-index: var(--z-dropdown);
    display: none;
}

.page-lang__menu.is-open {
    display: block;
    animation: pageLangIn 0.15s ease;
}

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

.page-lang__item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 9px 12px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-family: var(--font-family);
    font-size: var(--fs-sm);
    text-align: start;
    cursor: pointer;
    transition: var(--transition-fast);
}

.page-lang__item:hover { background: var(--bg-hover); }

.page-lang__item.is-active {
    background: var(--primary-soft);
    color: var(--primary-color);
    font-weight: var(--fw-bold);
}

.page-lang__item .flag { font-size: 15px; }
.page-lang__item .check {
    margin-inline-start: auto;
    color: var(--primary-color);
    font-size: 11px;
}

/* ============================================================
   7. Theme toggle
   ============================================================ */
.page-theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-main);
    cursor: pointer;
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.page-theme-toggle:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: var(--primary-soft);
}

.page-theme-toggle i { font-size: 14px; }

.page-theme-toggle .icon-dark,
.page-theme-toggle .icon-light,
.page-theme-toggle .icon-gaming {
    display: none;
}

[data-theme="dark"]   .page-theme-toggle .icon-dark   { display: inline-block; }
[data-theme="light"]  .page-theme-toggle .icon-light  { display: inline-block; }
[data-theme="gaming"] .page-theme-toggle .icon-gaming { display: inline-block; }

/* ============================================================
   8. Light theme adjustments
   ============================================================ */
[data-theme="light"] .page-bg::before {
    background:
        radial-gradient(circle at 15% 20%, rgba(79, 70, 229, 0.08), transparent 55%),
        radial-gradient(circle at 85% 80%, rgba(124, 58, 237, 0.08), transparent 55%);
}

[data-theme="light"] .page-orb { opacity: 0.22; }

[data-theme="light"] .page-back-btn {
    background: #f8fafc;
    border-color: #e2e8f0;
}

/* ============================================================
   9. Gaming reduced effects
   ============================================================ */
[data-theme="gaming"][data-gaming-effects="reduced"] .page-card {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

/* ============================================================
   10. Responsive
   ============================================================ */
@media (min-width: 1280px) {
    .page-card { max-width: 660px; }
}

@media (max-width: 900px) {
    .page-card { max-width: 540px; }
    .page-card__header { padding: 18px 28px; }
    .page-card__body { padding: 24px 32px 28px; }
    .page-card__footer { padding: 16px 28px; }
}

/* ============================================================
   11. Mobile — full-bleed card
   ============================================================ */
@media (max-width: 640px) {
    .page-shell {
        padding: 24px 16px;
        align-items: center;
    }

    .page-card {
        max-width: 100%;
        min-height: auto;
        border-radius: var(--radius-xl);
        border: 1px solid var(--border-color);
        display: flex;
        flex-direction: column;
    }

    .page-card__body { padding: 22px 20px 26px; }
    .page-card__header { padding: 16px 20px; }
    .page-card__footer { padding: 14px 20px; min-height: 68px; }
}

@media (max-width: 400px) {
    .page-shell { padding: 16px 12px; }
    .page-card__header { padding: 14px 16px; }
    .page-card__body   { padding: 18px 16px 22px; }
    .page-card__footer { padding: 12px 16px; }
}