/* ===== Design Tokens ===== */
:root {
    /* Brand Colors */
    --brand: #E53935;
    --brand-light: #FF5252;
    --brand-dark: #C62828;
    --brand-gradient: linear-gradient(135deg, var(--brand), var(--brand-light));
    --brand-bg: rgba(229, 57, 53, 0.06);
    --brand-bg-hover: rgba(229, 57, 53, 0.10);
    --brand-border: rgba(229, 57, 53, 0.15);
    --brand-shadow: rgba(229, 57, 53, 0.25);

    /* Semantic Colors */
    --success: #2E7D32;
    --success-bg: rgba(46, 125, 50, 0.08);
    --warning: #F57F17;
    --warning-bg: rgba(245, 127, 23, 0.08);
    --error: #C62828;
    --error-bg: rgba(198, 40, 40, 0.08);
    --info: #1565C0;
    --info-bg: rgba(21, 101, 192, 0.08);

    /* Neutrals */
    --text: #1a1a2e;
    --text-secondary: #5c6370;
    --text-muted: #8993a4;
    --bg: #f0f2f5;
    --bg-card: #ffffff;
    --bg-sidebar: #ffffff;
    --border: rgba(0, 0, 0, 0.06);
    --border-hover: rgba(0, 0, 0, 0.12);

    /* Layout */
    --sidebar-width: 272px;
    --content-max: 1140px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-pill: 50px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.10);
    --shadow-brand: 0 4px 16px var(--brand-shadow);

    /* Transitions */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --duration: 0.2s;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Sidebar ===== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 1000;
    transition: transform var(--duration) var(--ease);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 28px 24px 20px;
    border-bottom: 1px solid var(--border);
    text-align: center;
    flex-shrink: 0;
}

.sidebar-header h1 {
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.35em;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}

.sidebar-header p {
    color: var(--text-muted);
    font-size: 0.8em;
    font-weight: 500;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.sidebar-nav {
    padding: 16px 0;
    flex: 1;
}

.nav-item {
    margin: 2px 12px;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 11px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--duration) var(--ease);
    font-weight: 500;
    font-size: 0.92em;
}

.nav-link:hover {
    background: var(--brand-bg);
    color: var(--brand);
}

.nav-link.active {
    background: var(--brand-gradient);
    color: white;
    box-shadow: var(--shadow-brand);
}

.nav-link i {
    margin-right: 12px;
    width: 20px;
    text-align: center;
    font-size: 1.05em;
}

.nav-divider {
    height: 1px;
    background: var(--border);
    margin: 8px 16px;
}

.lang-switcher {
    padding: 16px 24px 24px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-inn {
    padding: 0 24px 20px;
    text-align: center;
    display: flex;
    justify-content: center;
    width: 100%;
    color: var(--text-muted);
    font-size: 0.76em;
    line-height: 1.35;
    letter-spacing: 0.01em;
    flex-shrink: 0;
}

.lang-btn {
    background: var(--brand-gradient);
    color: white;
    padding: 10px 28px;
    border: none;
    border-radius: var(--radius-pill);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85em;
    letter-spacing: 0.05em;
    transition: all var(--duration) var(--ease);
    box-shadow: var(--shadow-brand);
    text-decoration: none;
    display: inline-block;
}

.lang-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--brand-shadow);
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.content-wrapper {
    padding: 32px 40px;
    max-width: var(--content-max);
    margin: 0 auto;
}

.cookie-banner {
    position: fixed;
    right: 22px;
    bottom: 22px;
    width: min(430px, calc(100% - 24px));
    z-index: 1400;
    opacity: 0;
    transform: translateY(12px);
    pointer-events: none;
    transition: opacity var(--duration) var(--ease), transform var(--duration) var(--ease);
}

.cookie-banner.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.cookie-banner-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 14px;
}

.cookie-banner-text strong {
    display: block;
    color: var(--text);
    margin-bottom: 4px;
    font-size: 0.95em;
}

.cookie-banner-text p {
    color: var(--text-secondary);
    font-size: 0.88em;
    line-height: 1.5;
}

.cookie-banner-actions {
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

.cookie-policy-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.84em;
    font-weight: 600;
}

.cookie-policy-link:hover {
    color: var(--brand);
    text-decoration: underline;
}

.cookie-accept-btn {
    border: none;
    border-radius: var(--radius-sm);
    background: var(--brand-gradient);
    color: #fff;
    font-size: 0.85em;
    font-weight: 700;
    padding: 8px 12px;
    cursor: pointer;
    transition: all var(--duration) var(--ease);
}

.cookie-accept-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-brand);
}

/* ===== Mobile Toggle ===== */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 1001;
    background: var(--brand-gradient);
    color: white;
    border: none;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    box-shadow: var(--shadow-brand);
    font-size: 1.1em;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes modalSlideIn {
    from { opacity: 0; transform: translateY(-30px) scale(0.96); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.fade-in-up {
    animation: fadeInUp 0.5s var(--ease);
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0; top: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--bg-card);
    margin: 12% auto;
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 420px;
    text-align: center;
    animation: modalSlideIn 0.35s var(--ease);
}

.modal-icon {
    font-size: 3.5em;
    margin-bottom: 16px;
}

.modal-success .modal-icon { color: var(--success); }
.modal-error .modal-icon   { color: var(--error); }

.modal h3 {
    color: var(--text);
    font-size: 1.5em;
    margin-bottom: 10px;
    font-weight: 700;
}

.modal-close {
    background: var(--brand-gradient);
    color: white;
    padding: 10px 32px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95em;
    margin-top: 20px;
    transition: all var(--duration) var(--ease);
}

.modal-close:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-brand);
}

/* ===== Content Cards ===== */
.content-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 20px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--duration) var(--ease);
}

.content-card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    margin-bottom: 24px;
    text-align: center;
}

.card-title {
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2em;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 6px;
}

.card-subtitle {
    color: var(--text-muted);
    font-size: 1em;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .content-wrapper {
        padding: 20px 16px;
        padding-top: 70px;
    }

    .cookie-banner {
        left: 12px;
        right: 12px;
        bottom: 12px;
        width: auto;
    }

    .cookie-banner-actions {
        justify-content: space-between;
    }

    .content-card {
        padding: 24px 20px;
        border-radius: var(--radius-md);
    }
}