:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e5e5e5;
    --text-primary: #000000;
    --text-secondary: #6b7280;
    --text-tertiary: #9ca3af;
    --accent: #000000;
    --border: #e5e5e5;

    --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', sans-serif;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

#app {
    max-width: 430px;
    margin: 0 auto;
    min-height: 100vh;
    position: relative;
    background: var(--bg-primary);
}

/* ===== СКРИНЫ ===== */
.screen {
    display: none;
    min-height: 100vh;
    padding: 0 24px 100px;
}

.screen.active {
    display: flex;
    flex-direction: column;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ===== СТАРТ ===== */
#start-screen {
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 40px 32px;
}

.start-content {
    width: 100%;
    animation: slideUpFade 0.6s ease;
}

@keyframes slideUpFade {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    animation: bounceIn 0.6s ease 0.1s both;
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.8);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.title {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 12px;
    animation: slideUpFade 0.6s ease 0.2s both;
}

.subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    animation: slideUpFade 0.6s ease 0.3s both;
}

.btn-primary {
    width: 100%;
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    padding: 18px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font);
    animation: slideUpFade 0.6s ease 0.4s both;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    width: 100%;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1.5px solid var(--border);
    padding: 18px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-xl);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--text-secondary);
}

.btn-secondary:active {
    background: var(--bg-secondary);
    transform: scale(0.98);
}

/* ===== МОДАЛКА ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.4);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(4px);
}

.modal.hidden {
    display: none;
    opacity: 0;
}

.modal-sheet {
    background: var(--bg-primary);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 24px;
    width: 100%;
    max-width: 430px;
    animation: slideUpModal 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}

@keyframes slideUpModal {
    from {
        transform: translateY(100%);
        opacity: 0.8;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--bg-tertiary);
    transform: rotate(90deg);
}

.modal-header {
    text-align: center;
    margin-bottom: 32px;
    padding-top: 8px;
}

.modal-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.modal-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ===== ТЕСТ ===== */
#quiz-screen {
    padding-top: 20px;
    animation: fadeIn 0.4s ease;
}

.quiz-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    margin-bottom: 24px;
}

.back-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.back-btn:hover {
    background: var(--bg-tertiary);
    transform: translateX(-2px);
}

.progress-text {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

.question-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    animation: slideUpFade 0.5s ease;
}

.meme-image {
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    overflow: hidden;
    display: none;
}

.meme-image.has-image {
    display: block;
    animation: fadeIn 0.4s ease;
}

.meme-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.meme-image:hover img {
    transform: scale(1.02);
}

.question-text {
    font-size: 19px;
    font-weight: 600;
    line-height: 1.35;
    transition: all 0.3s ease;
}

.answers-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.answer-option {
    background: var(--bg-primary);
    border: 1.5px solid var(--border);
    padding: 20px 24px;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font);
    position: relative;
    overflow: hidden;
}

.answer-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--text-primary);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.answer-option:hover {
    border-color: var(--text-secondary);
    transform: translateX(4px);
}

.answer-option.selected {
    background: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
    transform: scale(0.98);
}

.answer-option.selected::before {
    opacity: 0;
}

.answer-option:active {
    transform: scale(0.96);
}

/* ===== РЕЗУЛЬТАТ ===== */
#result-screen {
    padding-top: 20px;
    align-items: center;
    text-align: center;
    animation: fadeIn 0.5s ease;
}

.result-header {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-tertiary);
    margin-bottom: 32px;
}

.chart-container {
    width: 280px;
    height: 280px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    position: relative;
    margin-bottom: 40px;
    overflow: hidden;
}

.chart-line {
    position: absolute;
    background: var(--border);
}

.chart-line.horizontal {
    width: 100%;
    height: 1px;
    top: 50%;
    left: 0;
}

.chart-line.vertical {
    width: 1px;
    height: 100%;
    left: 50%;
    top: 0;
}

.chart-label {
    position: absolute;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.chart-label.top { top: 12px; left: 50%; transform: translateX(-50%); }
.chart-label.bottom { bottom: 12px; left: 50%; transform: translateX(-50%); }
.chart-label.left { left: 12px; top: 50%; transform: translateY(-50%) rotate(-90deg); }
.chart-label.right { right: 12px; top: 50%; transform: translateY(-50%) rotate(90deg); }

.result-point {
    width: 24px;
    height: 24px;
    background: var(--text-primary);
    border-radius: 50%;
    border: 4px solid var(--bg-primary);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    position: absolute;
    transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    animation: pointPulse 2s ease infinite;
}

@keyframes pointPulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    }
    50% {
        box-shadow: 0 4px 30px rgba(0,0,0,0.3);
    }
}

.archetype-title {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
    text-transform: uppercase;
    animation: slideUpFade 0.5s ease 0.2s both;
}

.archetype-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.5;
    max-width: 300px;
    margin-bottom: 24px;
    padding: 0 20px;
    animation: slideUpFade 0.5s ease 0.3s both;
}

.percentage-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-secondary);
    padding: 12px 24px;
    border-radius: var(--radius-xl);
    font-size: 18px;
    font-weight: 700;
    animation: slideUpFade 0.5s ease 0.4s both;
}

/* ===== НАВИГАЦИЯ ===== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-around;
    padding: 12px 16px 28px;
    max-width: 430px;
    margin: 0 auto;
    gap: 8px;
    animation: slideUpNav 0.4s ease;
}

@keyframes slideUpNav {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    font-family: var(--font);
    border-radius: var(--radius-md);
    flex: 1;
}

.nav-item.active {
    background: var(--text-primary);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

.nav-item:disabled {
    opacity: 0.3;
    pointer-events: none;
}

.nav-item:not(:disabled):hover {
    color: var(--text-primary);
    transform: translateY(-2px);
}

.nav-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: transform 0.2s ease;
}

.nav-item:hover .nav-icon {
    transform: scale(1.1);
}

.nav-label {
    font-size: 11px;
    font-weight: 500;
}

/* ===== ДРУЗЬЯ ===== */
#friends-screen {
    padding-top: 20px;
    animation: fadeIn 0.4s ease;
}

.screen-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 24px;
}

.hidden {
    display: none !important;
}

/* ===== МЕДИА-ЗАПРОСЫ ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}