@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --ease-fluid: cubic-bezier(0.22, 1, 0.36, 1);
    --duration-fast: 0.18s;
    --duration-normal: 0.32s;

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 34px;
    --radius-full: 999px;

    --spacing-xs: 8px;
    --spacing-sm: 14px;
    --spacing-md: 22px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;

    --shadow-soft: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-glass: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.light-mode {
    color-scheme: light;
    --bg-base: #fcfcfc;
    --bg-dark: #f0f0f2;
    --bg-elev-1: #ffffff;
    --bg-elev-2: #f8f9fa;
    --primary: #0a0a0a;
    --primary-hover: #262626;
    --primary-glow: rgba(10, 10, 10, 0.08);
    --secondary: #2563eb;
    --secondary-glow: rgba(37, 99, 235, 0.15);
    --accent-success: #16a34a;
    --accent-success-glow: rgba(22, 163, 74, 0.1);
    --accent-warning: #d97706;
    --accent-warning-glow: rgba(217, 119, 6, 0.1);
    --accent-danger: #dc2626;
    --accent-danger-glow: rgba(220, 38, 38, 0.1);
    --text-primary: #111111;
    --text-secondary: #4b5563;
    --text-tertiary: #6b7280;
    --glass-surface-base: rgba(255, 255, 255, 0.95);
    --glass-surface-light: rgba(0, 0, 0, 0.03);
    --glass-border: #d1d5db;
    --glass-border-hover: #9ca3af;
    --glass-highlight: rgba(0, 0, 0, 0.05);
    --blur-strength: 12px;
}

.dark-mode {
    color-scheme: dark;
    --bg-base: #0A0A0C;
    --bg-dark: #1a1a20;
    --bg-elev-1: #1a1a20;
    --bg-elev-2: #2a2a30;
    --primary: #4DA3FF;
    --primary-hover: #7B73FF;
    --primary-glow: rgba(77, 163, 255, 0.15);
    --secondary: #7B73FF;
    --secondary-glow: rgba(123, 115, 255, 0.15);
    --accent-success: #22c55e;
    --accent-success-glow: rgba(34, 197, 94, 0.1);
    --accent-warning: #f59e0b;
    --accent-warning-glow: rgba(245, 158, 11, 0.1);
    --accent-danger: #ef4444;
    --accent-danger-glow: rgba(239, 68, 68, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-tertiary: #71717a;
    --glass-surface-base: rgba(10, 10, 12, 0.85);
    --glass-surface-light: rgba(255, 255, 255, 0.05);
    --glass-border: #2a2a30;
    --glass-border-hover: #3a3a40;
    --glass-highlight: rgba(255, 255, 255, 0.08);
    --blur-strength: 12px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
}

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-base);
    line-height: 1.56;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    display: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: "Inter", sans-serif;
    margin: 0 0 var(--spacing-md);
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.4rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.2rem, 2.6vw, 1.5rem);
    font-weight: 600;
}

p {
    margin: 0 0 var(--spacing-md);
    color: var(--text-secondary);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-fluid);
}

a:hover {
    color: var(--primary-hover);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1200;
    padding: 14px 0;
}

nav {
    width: min(1200px, calc(100% - 28px));
    margin: 0 auto;
    padding: 10px 12px;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    background: var(--glass-surface-base);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(var(--blur-strength));
    -webkit-backdrop-filter: blur(var(--blur-strength));
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px;
    color: var(--text-primary);
    border-radius: 999px;
}

.logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-base);
    background: var(--text-primary);
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--text-primary);
}

.logo-image {
    width: 38px;
    height: 38px;
    object-fit: contain;
}

.logo-text {
    font-family: "Inter", sans-serif;
    font-size: 1.06rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.language-switcher select {
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    padding: 4px 12px;
    height: 38px;
    min-height: 38px;
    width: auto;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    transition: all var(--duration-fast) var(--ease-fluid);
}

.language-switcher select:hover {
    color: var(--text-primary);
    border-color: var(--glass-border-hover);
    background: var(--glass-surface-light);
}

.theme-toggle {
    cursor: pointer;
    background: transparent;
    border: none;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle svg {
    transition: transform var(--duration-normal) var(--ease-fluid);
}

.theme-toggle:hover svg {
    transform: scale(1.1);
}

.dark-mode .sun-icon { display: block !important; }
.dark-mode .moon-icon { display: none !important; }
.light-mode .sun-icon { display: none !important; }
.light-mode .moon-icon { display: block !important; }

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    color: var(--text-secondary);
    min-height: 44px;
    padding: 10px 16px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all var(--duration-fast) var(--ease-fluid);
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--glass-surface-light);
}

.skills-nav {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: var(--bg-dark);
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    padding: 4px;
}

.nav-icon-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    height: 42px;
    min-width: 42px;
    padding: 10px 11px;
    border-radius: 999px;
    transition: all var(--duration-fast) var(--ease-fluid);
}

.nav-icon-link span {
    max-width: 0;
    opacity: 0;
    overflow: hidden;
    white-space: nowrap;
    transition: all var(--duration-fast) var(--ease-fluid);
    font-size: 0.92rem;
    font-weight: 600;
}

.nav-icon-link:hover {
    background: var(--bg-elev-2);
    color: var(--text-primary);
    padding-right: 14px;
}

.nav-icon-link:hover span {
    max-width: 120px;
    opacity: 1;
}

.mobile-menu-btn {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    background: var(--bg-elev-1);
    color: var(--text-primary);
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 4px;
}

.mobile-menu-btn span {
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    transition: all var(--duration-fast) var(--ease-fluid);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

main {
    width: min(1240px, 100%);
    margin: 0 auto;
    padding: 104px 18px 48px;
    flex: 1;
    position: relative;
    z-index: 1;
}

main > * {
    animation: riseIn 0.45s var(--ease-fluid) both;
}

@keyframes riseIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.glass-panel,
.card,
.notice-card,
.question-card,
.feature-card,
.question-card-container,
.activity-item,
.setting-row,
.style-section,
.swatch {
    background: var(--bg-elev-1);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(var(--blur-strength));
    -webkit-backdrop-filter: blur(var(--blur-strength));
}

.glass-panel {
    position: relative;
    overflow: hidden;
}

.glass-panel::after,
.card::after {
    content: "";
    position: absolute;
    top: 0;
    left: 8%;
    width: 84%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-highlight), transparent);
    opacity: 0.7;
    pointer-events: none;
}

.card,
.feature-card,
.notice-card,
.question-card {
    padding: clamp(18px, 2.4vw, 30px);
    transition: transform var(--duration-normal) var(--ease-fluid), border-color var(--duration-normal) var(--ease-fluid), box-shadow var(--duration-normal) var(--ease-fluid);
}

.card:hover,
.feature-card:hover,
.notice-card:hover,
.question-card:hover,
.activity-item:hover {
    transform: translateY(-4px);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-glass);
}

.btn {
    border: 0;
    min-height: 44px;
    min-width: 44px;
    padding: 11px 20px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: "Inter", sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--duration-fast) var(--ease-fluid);
}

.btn-primary,
.btn:not(.btn-outline):not(.btn-secondary):not(.nav-link) {
    background: var(--primary);
    color: var(--bg-base);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.btn-primary:hover,
.btn:not(.btn-outline):not(.btn-secondary):not(.nav-link):hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    background: var(--primary-hover);
}

.btn-secondary {
    background: var(--bg-elev-1);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-soft);
}

.btn-secondary:hover {
    background: var(--bg-elev-2);
    border-color: var(--glass-border-hover);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--primary);
    background: var(--glass-surface-light);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn-outline:hover {
    background: var(--glass-surface-light);
    border-color: var(--glass-border-hover);
}

.btn-lg {
    padding: 13px 26px;
    font-size: 1rem;
}

.btn-xl {
    padding: 15px 32px;
    font-size: 1.05rem;
}

.glow-effect {
    position: relative;
}

.glow-effect::before {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    background: linear-gradient(120deg, rgba(150, 216, 255, 0.52), rgba(110, 214, 255, 0.08), rgba(124, 170, 255, 0.42));
    opacity: 0;
    z-index: -1;
    transition: opacity var(--duration-fast) var(--ease-fluid);
}

.glow-effect:hover::before {
    opacity: 1;
}

input,
textarea,
select {
    width: 100%;
    min-height: 44px;
    padding: 11px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    background: var(--bg-elev-1);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--duration-fast) var(--ease-fluid);
}

input::placeholder,
textarea::placeholder {
    color: var(--text-tertiary);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px var(--secondary-glow);
}

.form-group {
    margin-bottom: 14px;
}

label,
.form-group label {
    display: inline-block;
    margin-bottom: 6px;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.92rem;
}

.hero-section {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: clamp(24px, 4vw, 56px);
    min-height: min(84vh, 880px);
    padding: clamp(18px, 2vw, 28px) 0 clamp(36px, 5vw, 58px);
}

.hero-text-content {
    max-width: 670px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    background: var(--bg-elev-2);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.82rem;
    letter-spacing: 0.02em;
    margin-bottom: 14px;
}

.badge-icon {
    font-size: 0.95rem;
}

.hero-headline {
    margin-bottom: 16px;
    font-size: clamp(2.2rem, 5vw, 4.1rem);
    font-weight: 700;
}

.text-gradient {
    background: linear-gradient(120deg, var(--primary) 6%, var(--secondary) 90%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-subheadline {
    max-width: 60ch;
    font-size: clamp(1rem, 1.9vw, 1.2rem);
    color: var(--text-secondary);
    margin-bottom: 28px;
}

.hero-cta-group,
.cta-group,
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 28px;
}

.trust-indicators {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatars-stack {
    display: flex;
    align-items: center;
}

.avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 2px solid rgba(14, 22, 37, 0.92);
    margin-left: -10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    background: var(--secondary);
}

.light-mode .avatar {
    color: #fff;
    background: var(--secondary);
}

.avatars-stack .avatar:first-child {
    margin-left: 0;
}

.trust-text {
    font-size: 0.93rem;
    color: var(--text-secondary);
}

.trust-highlight {
    color: #ddf1ff;
    font-weight: 700;
}

.light-mode .trust-highlight {
    color: #1e40af;
}

.hero-visual-container {
    position: relative;
}

.hero-visual-container::before {
    content: "";
    position: absolute;
    inset: 8% -12% auto;
    height: 72%;
    background: radial-gradient(closest-side, rgba(93, 182, 255, 0.42), transparent 80%);
    filter: blur(35px);
    pointer-events: none;
}

.code-mockup {
    position: relative;
    z-index: 1;
    overflow: hidden;
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    background: var(--bg-dark);
    box-shadow: var(--shadow-glass);
}

.mockup-header {
    display: flex;
    gap: 8px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--glass-border);
    background: var(--bg-elev-2);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red { background: #ff6b7b; }
.dot.yellow { background: #ffd45b; }
.dot.green { background: #3ddc97; }

.mockup-content {
    padding: 24px;
}

.score-circle {
    position: relative;
    width: 160px;
    margin: 0 auto 20px;
}

.circular-chart {
    width: 100%;
    transform: rotate(-90deg);
}

.circle-bg {
    fill: none;
    stroke: var(--glass-border);
    stroke-width: 2.6;
}

.circle {
    fill: none;
    stroke: var(--primary);
    stroke-width: 2.6;
    stroke-linecap: round;
    filter: drop-shadow(0 0 6px var(--primary-glow));
}

.score-text {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.score-value {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--text-primary);
}

.score-label {
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    color: var(--text-tertiary);
}

.mockup-stats {
    display: grid;
    gap: 10px;
    margin-bottom: 16px;
}

.stat-bar {
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    box-shadow: 0 0 12px var(--primary-glow);
}

.feedback-toast {
    display: flex;
    align-items: center;
    gap: 10px;
    border-radius: 14px;
    padding: 10px 12px;
    border: 1px solid var(--glass-border);
    background: var(--bg-elev-2);
}

.toast-icon {
    font-size: 1rem;
}

.toast-title {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.92rem;
}

.toast-desc {
    font-size: 0.82rem;
    color: var(--text-tertiary);
}

.features-section,
.steps-section,
.testimonials-section,
.newsletter-section,
.cta-section-large {
    margin-top: clamp(34px, 5vw, 64px);
}

.section-header-center,
.section-header {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 24px;
}

.section-title {
    margin-bottom: 10px;
}

.section-subtitle {
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.features-grid,
.features-grid-new {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 14px;
}

.features-grid-new {
    gap: 16px;
}

.feature-card-new {
    padding: 20px;
    transition: transform var(--duration-normal) var(--ease-fluid), border-color var(--duration-normal) var(--ease-fluid), background var(--duration-normal) var(--ease-fluid);
}

.hover-lift {
    transition: transform var(--duration-normal) var(--ease-fluid), box-shadow var(--duration-normal) var(--ease-fluid), border-color var(--duration-normal) var(--ease-fluid);
}

.feature-card-new:hover {
    transform: translateY(-3px);
    border-color: var(--glass-border-hover);
    background: linear-gradient(160deg, rgba(51, 74, 116, 0.55), rgba(18, 30, 52, 0.48));
}

.feature-icon-wrapper {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    border: 1px solid var(--glass-border);
    background: var(--bg-elev-2);
    color: var(--text-primary);
}

.icon-blue { background: rgba(78, 160, 255, 0.2); }
.icon-purple { background: rgba(116, 157, 255, 0.2); }
.icon-green { background: rgba(61, 220, 151, 0.2); }
.icon-orange { background: rgba(255, 185, 95, 0.22); }

.feature-tags {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 11px;
    font-size: 0.8rem;
    color: var(--text-primary);
    border-radius: 999px;
    border: 1px solid var(--glass-border);
    background: var(--bg-elev-2);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    align-items: stretch;
}

.step-item {
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    background: var(--bg-elev-2);
    box-shadow: var(--shadow-soft);
    padding: 22px;
}

.step-number {
    display: inline-flex;
    padding: 6px 12px;
    margin-bottom: 12px;
    border-radius: 999px;
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    background: var(--primary-glow);
    border: 1px solid var(--primary);
}

.step-connector {
    display: none;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 14px;
}

.testimonial-card {
    padding: 20px;
}

.stars {
    color: #ffe288;
    letter-spacing: 0.15em;
    font-size: 0.92rem;
    margin-bottom: 10px;
}

.light-mode .stars {
    color: #d97706;
}

.quote {
    margin-bottom: 14px;
}

.author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
    background: var(--secondary);
}

.light-mode .author-avatar {
    color: #fff;
    background: var(--secondary);
}

.author-info {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
}

.author-info .name {
    color: var(--text-primary);
    font-weight: 700;
}

.author-info .role {
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

.newsletter-section {
    padding: clamp(20px, 4vw, 36px);
}

.newsletter-content {
    max-width: 740px;
    margin: 0 auto;
    text-align: center;
}

.newsletter-form {
    display: flex;
    gap: 10px;
    max-width: 560px;
    margin: 0 auto;
}

.cta-section-large {
    text-align: center;
    padding: 16px 0 10px;
}

.cta-title {
    margin-bottom: 10px;
}

.cta-subtitle {
    max-width: 680px;
    margin: 0 auto 20px;
}

.auth-card {
    width: min(460px, 100%);
    margin: 0 auto;
    text-align: center;
}

.telegram-login-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--bg-base);
    box-shadow: 0 12px 24px var(--primary-glow);
}

.auth-code-section {
    margin-top: 14px;
    padding: 16px;
}

.auth-code-input {
    text-align: center;
    letter-spacing: 0.46em;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-weight: 700;
}

.profile-header,
.test-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 18px;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar-circle {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--bg-base);
    font-weight: 800;
}

.subscription-card {
    padding: 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--accent-success);
    background: var(--accent-success-glow);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.subscription-card.free {
    border-color: var(--glass-border);
    background: var(--bg-elev-2);
}

.status-badge {
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 0.82rem;
    font-weight: 700;
}

.status-active,
.status-success {
    color: var(--accent-success);
    border: 1px solid var(--accent-success);
    background: var(--accent-success-glow);
}

.status-pending {
    color: var(--accent-warning);
    border: 1px solid var(--accent-warning);
    background: var(--accent-warning-glow);
}

.status-processing {
    color: var(--accent-danger);
    border: 1px solid var(--accent-danger);
    background: var(--accent-danger-glow);
}

.activity-grid,
.component-grid,
.component-row,
.style-guide,
.component-library,
.swatch-grid,
.type-scale {
    display: grid;
    gap: 14px;
}

.settings-grid {
    display: grid;
    gap: 14px;
}

.setting-row {
    padding: 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    transition: all var(--duration-fast) var(--ease-fluid);
}

.setting-row:hover {
    border-color: var(--glass-border-hover);
    background: var(--bg-elev-2);
}

.activity-item {
    padding: 14px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.test-timer {
    padding: 10px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--primary);
    background: var(--primary-glow);
    color: var(--primary);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-weight: 700;
}

.question-card-container {
    padding: clamp(18px, 3vw, 28px);
    margin-bottom: 20px;
}

.part-title {
    padding-bottom: 10px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--glass-border);
}

.resource-panel,
.reading-text-panel {
    padding: 16px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    background: var(--bg-elev-2);
}

.question-block {
    border-left: 3px solid var(--primary);
    padding-left: 14px;
}

.question-text {
    color: var(--text-primary);
    font-size: 1.03rem;
}

.option-label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid transparent;
    transition: all var(--duration-fast) var(--ease-fluid);
}

.option-label:hover {
    border-color: var(--glass-border-hover);
    background: var(--glass-surface-light);
}

.form-radio {
    width: 19px;
    height: 19px;
    accent-color: var(--primary);
}

.grid-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--glass-border);
    background: var(--glass-surface-light);
    color: var(--text-primary);
    font-weight: 700;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-fluid);
}

.grid-btn:hover {
    border-color: var(--glass-border-hover);
    background: var(--bg-elev-2);
}

.grid-btn.selected {
    color: var(--bg-base);
    border-color: transparent;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.sticky-footer {
    position: sticky;
    bottom: 16px;
    z-index: 40;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    inset: 0;
    border-radius: 999px;
    background: var(--bg-dark);
    transition: all var(--duration-fast) var(--ease-fluid);
}

.slider-thumb {
    position: absolute;
    left: 4px;
    top: 4px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--text-primary);
    transition: transform var(--duration-fast) var(--ease-fluid);
}

input:checked + .slider {
    background: var(--primary) !important;
}

input:checked + .slider .slider-thumb {
    background: var(--bg-base);
    transform: translateX(24px);
}

audio {
    width: 100%;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 10px;
}

footer {
    border-top: 1px solid var(--glass-border);
    margin-top: auto;
    text-align: center;
    padding: 24px 10px 34px;
    color: var(--text-tertiary);
    font-size: 0.9rem;
    position: relative;
    z-index: 1;
}

footer a {
    color: var(--text-secondary);
    border-radius: 999px;
    padding: 8px 12px;
}

footer a:hover {
    color: var(--text-primary);
    background: #f5f5f5;
}

.protected-root,
.protected-root * {
    user-select: none !important;
    -webkit-user-select: none !important;
    -webkit-touch-callout: none !important;
}

.protected-root img,
.protected-root video,
.protected-root audio {
    pointer-events: none;
}

.mb-4 {
    margin-bottom: 1rem;
}

.text-center {
    text-align: center;
}

button,
.btn,
a,
.nav-link,
.nav-icon-link {
    touch-action: manipulation;
}

@media (min-width: 860px) {
    .component-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .component-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .settings-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (min-width: 1100px) {
    .component-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 1024px) {
    .hero-section {
        grid-template-columns: 1fr;
    }

    .hero-text-content,
    .section-header-center,
    .section-header {
        text-align: center;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta-group,
    .cta-group,
    .hero-actions,
    .trust-indicators {
        justify-content: center;
    }

    .steps-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    nav {
        border-radius: 22px;
    }

    .mobile-menu-btn {
        display: inline-flex;
    }

    .nav-actions {
        display: none;
        position: fixed;
        left: 12px;
        right: 12px;
        top: 74px;
        max-height: calc(100vh - 88px);
        overflow-y: auto;
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        padding: 16px;
        border-radius: 20px;
        border: 1px solid var(--glass-border);
        background: #ffffff;
        box-shadow: var(--shadow-glass);
        backdrop-filter: blur(22px);
        -webkit-backdrop-filter: blur(22px);
    }

    .nav-actions.active {
        display: flex;
    }

    .skills-nav {
        width: 100%;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-icon-link {
        width: calc(50% - 6px);
        justify-content: center;
        padding: 10px 12px;
    }

    .nav-icon-link span {
        max-width: 120px;
        opacity: 1;
    }

    main {
        padding-top: 92px;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .profile-header,
    .test-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 620px) {
    main {
        padding: 88px 12px 34px;
    }

    .card,
    .feature-card,
    .notice-card,
    .question-card,
    .question-card-container {
        border-radius: 18px;
        padding: 16px;
    }

    .hero-headline {
        font-size: clamp(1.9rem, 9vw, 2.6rem);
    }

    .hero-subheadline {
        font-size: 1rem;
    }

    .nav-icon-link {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}