:root {
    --emasos-brand: #E20613;
    --emasos-bg: #f7f7f8;
    --emasos-text: #111111;
    --emasos-muted: #6b7280;
    --emasos-card: #ffffff;
    --emasos-border: #e2e2e6;
    --emasos-input-border: #d5d6db;
    --emasos-sidebar-bg: #f3f3f5;
    --emasos-text-strong: #2f2f36;
    --emasos-text-heading: #1f2937;
    --emasos-text-link: #3f4b5d;
    --emasos-text-subtle: #737c8c;
    --emasos-text-faint: #8f97a6;
    --emasos-text-placeholder: #9aa0ab;
    --emasos-text-on-brand: #ffffff;
    --emasos-hover-bg: #e3e4e8;
    --emasos-shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04);
    --emasos-shadow-lg: 0 6px 16px rgba(16, 24, 40, 0.06);
    --emasos-overlay-bg: rgba(0, 0, 0, 0.15);
    --emasos-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
    --emasos-font-size-xs: 12px;
    --emasos-font-size-sm: 13px;
    --emasos-font-size-md: 14px;
    --emasos-font-size-lg: 16px;
    --emasos-font-size-xl: 20px;
    --emasos-font-size-2xl: 24px;
    --emasos-font-size-3xl: 28px;
    --emasos-font-size-4xl: 32px;
    --emasos-font-size-5xl: 40px;
    --emasos-font-size-6xl: 42px;
    --emasos-icon-nudge: 0.065em;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--emasos-font-family);
    color: var(--emasos-text);
    background: var(--emasos-bg);
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

html {
    box-sizing: border-box;
}

*, *::before, *::after {
    box-sizing: inherit;
}

input,
button,
select,
textarea {
    font: inherit;
}

input:not([type="checkbox"]):not([type="radio"]),
select,
textarea {
    box-sizing: border-box;
    display: block;
    width: 100%;
    max-width: 100%;
}

/* Shared structural icon alignment with a small optical baseline nudge. */
.emasos-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    flex: 0 0 auto;
}

.emasos-icon svg {
    display: block;
    transform: translateY(var(--emasos-icon-nudge));
}

.emasos-app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 240px 1fr;
}

.emasos-nav-toggle {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: 0;
    padding: 0;
    opacity: 0;
    pointer-events: none;
    border: 0;
}

.emasos-sidebar-overlay {
    display: none;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

.emasos-sidebar {
    background: var(--emasos-sidebar-bg);
    border-right: 1px solid var(--emasos-border);
    padding: 10px 8px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
}

.emasos-sidebar-header {
    padding: 0 10px 4px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.emasos-sidebar-header img {
    width: 112px;
    height: auto;
    display: block;
}

.emasos-sidebar-close {
    display: none;
    width: 30px;
    height: 30px;
}

.emasos-sidebar-close svg {
    width: 16px;
    height: 16px;
    display: block;
}

.emasos-sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-height: 0;
    overflow-y: auto;
}

.emasos-sidebar-nav a {
    color: var(--emasos-text-strong);
    text-decoration: none;
    border-radius: 8px;
    padding: 8px 10px;
    font-size: var(--emasos-font-size-md);
    font-weight: 400;
}

.emasos-sidebar-nav a.active {
    font-weight: 600;
}

.emasos-sidebar-nav a:hover {
    background: var(--emasos-hover-bg);
}

.emasos-sidebar-footer {
    margin-top: auto;
    padding: 8px 10px 4px;
    flex-shrink: 0;
}

.emasos-user-menu {
    display: flex;
    flex-direction: column-reverse;
    border: 1px solid transparent;
    border-radius: 10px;
    background: transparent;
    overflow: hidden;
}

@media (hover: hover) and (pointer: fine) {
    .emasos-user-menu:hover:not([open]) {
        background: var(--emasos-hover-bg);
    }
}

.emasos-user-menu[open] {
    border-color: var(--emasos-border);
    background: var(--emasos-card);
}

.emasos-user-trigger {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
    border: 0;
    border-radius: 0;
    background: transparent;
    padding: 8px 10px;
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.emasos-user-trigger:active {
    background: var(--emasos-hover-bg);
}

.emasos-user-trigger::-webkit-details-marker {
    display: none;
}

.emasos-user-avatar {
    width: 16px;
    height: 16px;
    border-radius: 0;
    background: transparent;
    color: var(--emasos-text-subtle);
    flex: 0 0 auto;
}

.emasos-user-avatar svg {
    width: 16px;
    height: 16px;
    display: block;
}

.emasos-user-name {
    min-width: 0;
    color: var(--emasos-text-strong);
    font-size: var(--emasos-font-size-md);
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.emasos-user-panel {
    margin-top: 0;
    border: 0;
    border-bottom: 1px solid var(--emasos-border);
    border-radius: 0;
    background: transparent;
    padding: 0;
}

.emasos-user-logout-form {
    margin: 0;
}

.emasos-user-logout-btn {
    width: 100%;
    border: 0;
    border-radius: 0;
    height: 34px;
    padding: 0 10px;
    background: transparent;
    font-size: var(--emasos-font-size-sm);
    font-weight: 600;
    color: var(--emasos-text-strong);
    cursor: pointer;
    text-align: left;
}

.emasos-user-logout-btn:hover {
    background: var(--emasos-hover-bg);
}

.emasos-main {
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.emasos-topbar {
    display: block;
    border-bottom: 0;
    background: transparent;
    padding: 0;
}

.emasos-topbar-main {
    min-height: 48px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--emasos-border);
    box-shadow: var(--emasos-shadow-sm);
    padding: 0 18px;
}

.emasos-topbar-controls {
    display: inline-flex;
    align-items: center;
    align-self: stretch;
    gap: 8px;
    flex: 0 0 auto;
}

.emasos-topbar-navigation {
    display: inline-flex;
    align-items: center;
}

.emasos-topbar-title-separator {
    display: none;
}

.emasos-nav-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: 1px solid transparent;
    border-radius: 8px;
    background: transparent;
    color: var(--emasos-text-strong);
    cursor: pointer;
    user-select: none;
    text-decoration: none;
    line-height: 1;
    flex: 0 0 auto;
    transition: background-color 120ms ease;
}

.emasos-nav-button:hover {
    background: var(--emasos-hover-bg);
}

.emasos-nav-button svg {
    transform: translateY(var(--emasos-icon-nudge));
}

/* Keep sidebar close hidden by default; mobile checked state enables it. */
.emasos-sidebar-close {
    display: none;
}

.emasos-topbar-back {
    color: var(--emasos-text-strong);
}

.emasos-topbar-back-icon {
    width: 34px;
    height: 34px;
    padding: 0;
}

.emasos-topbar-back-icon svg {
    width: 18px;
    height: 18px;
    display: block;
}

.emasos-topbar-title {
    flex: 1;
    min-width: 0;
    margin: 0;
    font-size: var(--emasos-font-size-lg);
    font-weight: 600;
    color: var(--emasos-text-heading);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.emasos-topbar-right {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    min-width: 0;
    margin-left: auto;
}

.emasos-topbar-breadcrumb-slot {
    min-height: 0;
    padding: 0 18px;
}

.emasos-breadcrumbs {
    margin: 8px 0 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    font-size: var(--emasos-font-size-sm);
    color: var(--emasos-muted);
    white-space: nowrap;
    overflow-x: auto;
}

.emasos-breadcrumbs a {
    color: var(--emasos-text-link);
    text-decoration: none;
}

.emasos-breadcrumbs a:hover {
    text-decoration: underline;
}

.emasos-breadcrumb-sep {
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
    height: auto;
    color: var(--emasos-text-subtle);
}

.emasos-breadcrumb-sep svg {
    width: 1em;
    height: 1em;
    display: block;
    transform: translateY(var(--emasos-icon-nudge));
}

/* iOS Safari tends to render icon/text optical centers slightly different. */
@supports (-webkit-touch-callout: none) {
    :root {
        --emasos-icon-nudge: -0.040em;
    }
}

/* Prevent mobile Safari focus-zoom without disabling user zoom. */
@media (hover: none) and (pointer: coarse) {
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="search"],
    input[type="tel"],
    input[type="url"],
    input[type="number"],
    select,
    textarea {
        font-size: 16px;
    }
}

.emasos-mobile-nav-button {
    display: none;
    width: 34px;
    height: 34px;
}

.emasos-mobile-nav-button svg {
    width: 18px;
    height: 18px;
    display: block;
}

.emasos-content {
    padding: 24px;
}

.emasos-dashboard {
    display: grid;
    gap: 16px;
}

.emasos-dashboard-tiles {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.emasos-dashboard-tile {
    background: var(--emasos-card);
    border: 1px solid var(--emasos-border);
    border-radius: 12px;
    min-height: 120px;
    padding: 16px;
}

.emasos-not-found-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 22px 20px 18px;
}

.emasos-not-found-shell {
    width: 100%;
    max-width: 520px;
    text-align: center;
}

.emasos-not-found-card {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    background: var(--emasos-card);
    border: 1px solid var(--emasos-border);
    border-radius: 12px;
    box-shadow: var(--emasos-shadow-lg);
    padding: 26px 28px 24px;
    text-align: center;
}

.emasos-not-found-code {
    margin: 0 0 6px 0;
    color: var(--emasos-brand);
    font-size: var(--emasos-font-size-5xl);
    font-weight: 800;
    letter-spacing: 1px;
}

.emasos-not-found-title {
    margin: 0 0 18px 0;
    font-size: var(--emasos-font-size-3xl);
    font-weight: 700;
}

.emasos-not-found-link {
    display: block;
    box-sizing: border-box;
    width: 100%;
    border-radius: 8px;
    padding: 10px 14px;
    color: var(--emasos-text-on-brand);
    background: var(--emasos-brand);
    text-decoration: none;
    font-size: var(--emasos-font-size-md);
    font-weight: 700;
    line-height: 1.2;
}

.emasos-not-found-link:hover {
    opacity: 0.95;
}

.emasos-login-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 22px 20px 18px;
}

.emasos-login-shell {
    width: 100%;
    max-width: 520px;
    text-align: center;
}

.emasos-logo {
    display: inline-block;
    margin-bottom: 28px;
}

.emasos-logo-brain {
    width: 250px;
    max-width: 100%;
    height: auto;
}

.emasos-login-shell .emasos-title {
    display: none;
}

.emasos-login-shell .emasos-login-security {
    display: none;
}

.emasos-login-card {
    width: 100%;
    max-width: 400px;
    box-sizing: border-box;
    margin: 0 auto;
    background: var(--emasos-card);
    border: 1px solid var(--emasos-border);
    border-radius: 12px;
    box-shadow: var(--emasos-shadow-lg);
    padding: 26px 28px 24px;
    text-align: left;
}

.emasos-form-label {
    display: block;
    margin: 0 0 12px 0;
    font-size: var(--emasos-font-size-md);
    font-weight: 700;
    line-height: 1.2;
}

.emasos-input-wrap {
    position: relative;
    margin-bottom: 14px;
}

.emasos-input {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid var(--emasos-input-border);
    border-radius: 8px;
    background: var(--emasos-card);
    padding: 10px 12px 10px 40px;
    font-size: var(--emasos-font-size-md);
    line-height: 1.2;
}

.emasos-input::placeholder {
    color: var(--emasos-text-placeholder);
}

.emasos-input-icon {
    position: absolute;
    left: 11px;
    top: 50%;
    width: 16px;
    height: 16px;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--emasos-text-faint);
    pointer-events: none;
}

.emasos-input-icon svg {
    width: 16px;
    height: 16px;
    display: block;
    transform: translateY(var(--emasos-icon-nudge));
}

.emasos-login-btn {
    margin-top: 6px;
    margin-bottom: 0;
    width: 100%;
    border: 0;
    border-radius: 8px;
    padding: 10px 14px;
    color: var(--emasos-text-on-brand);
    background: var(--emasos-brand);
    font-size: var(--emasos-font-size-md);
    font-weight: 700;
    line-height: 1.2;
    cursor: pointer;
}

.emasos-login-btn:hover {
    filter: brightness(0.97);
}

.emasos-error {
    color: var(--emasos-brand);
    margin: 0 0 14px 0;
    font-size: var(--emasos-font-size-md);
    font-weight: 600;
}

.emasos-footer {
    margin-top: 18px;
    color: var(--emasos-muted);
    font-size: var(--emasos-font-size-sm);
    text-align: center;
}

@media (max-width: 1024px) {
    .emasos-app-shell {
        grid-template-columns: 1fr;
    }

    .emasos-sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: 240px;
        height: auto;
        transform: translateX(-100%);
        transition: transform 160ms ease-in-out;
        z-index: 20;
    }

    .emasos-nav-toggle:checked ~ .emasos-sidebar {
        transform: translateX(0);
    }

    .emasos-sidebar-overlay {
        display: block;
        position: fixed;
        inset: 0;
        background: var(--emasos-overlay-bg);
        z-index: 15;
        opacity: 0;
        pointer-events: none;
        transition: opacity 160ms ease-in-out;
        touch-action: manipulation;
    }

    .emasos-nav-toggle:checked ~ .emasos-sidebar-overlay {
        opacity: 1;
        pointer-events: auto;
    }

    .emasos-nav-toggle:checked ~ .emasos-sidebar-overlay:active {
        background: var(--emasos-overlay-bg);
    }

    .emasos-mobile-nav-button {
        display: inline-flex;
    }

    .emasos-topbar-main {
        gap: 8px;
        padding: 0 18px 0 8px;
    }

    .emasos-topbar-controls {
        gap: 6px;
        margin-right: 2px;
    }

    .emasos-topbar-title-separator {
        display: block;
        width: 1px;
        align-self: stretch;
        background: var(--emasos-border);
    }

    .emasos-topbar-right {
        margin-left: 0;
    }

    .emasos-sidebar-close {
        display: none;
    }

    .emasos-nav-toggle:checked ~ .emasos-sidebar .emasos-sidebar-close {
        display: inline-flex;
    }

    .emasos-content {
        padding: 16px;
    }

    .emasos-not-found-code {
        font-size: var(--emasos-font-size-5xl);
    }

    .emasos-not-found-title {
        font-size: var(--emasos-font-size-2xl);
    }
}

@media (max-width: 640px) {
    .emasos-not-found-card,
    .emasos-login-card {
        max-width: 100%;
        padding: 22px 22px 20px;
    }

    .emasos-form-label {
        font-size: var(--emasos-font-size-lg);
    }

    .emasos-input {
        font-size: var(--emasos-font-size-lg);
    }

    .emasos-not-found-link,
    .emasos-login-btn {
        font-size: var(--emasos-font-size-lg);
    }
}