:root {
    /* цвета */
    --bg-main: #f4f7f6;
    --card-bg: rgba(255, 255, 255, 0.9);
    --input-bg: #ffffff;
    
    /* текст */
    --text-main: hsl(190, 10%, 25%);
    --text-muted: hsl(180, 10%, 50%);
    --text-on-primary: #ffffff;

    /* ещё цвета */
    --primary: hsl(250, 25%, 47%);
    --primary-hover: hsl(250, 25%, 37%);
    --primary-light-alpha: rgba(74, 111, 165, 0.15);
    
    --success: hsl(120, 58%, 39%);
    --fats: hsl(25, 78%, 56%);
    
    --danger: hsl(345, 78%, 56%);
    --danger-hover: hsl(345, 78%, 46%);
    --danger-light-alpha: rgba(230, 57, 70, 0.06);
    --danger-border-alpha: rgba(230, 57, 70, 0.1);
    --danger-glow: rgba(255, 0, 0, 0.5);

    /* геометрия */
    --radius: 12px;
    --radius-round: 50%;
    --blur-card: blur(10px);
    
    --border-light: 1px solid rgba(0, 0, 0, 0.08);
    --border-card: 1px solid rgba(255, 255, 255, 0.6);
    --border-btn-sec: 1px solid rgba(0, 0, 0, 0.1);
    --border-click-danger: 1px solid rgba(230, 57, 70, 0.06);

    --shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
    --shadow-tooltip: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-click: 0 4px 10px rgba(0, 0, 0, 0.02);
    --shadow-click-active: 0 2px 5px rgba(0, 0, 0, 0.05);
    --shadow-save-fab: 0 4px 20px rgba(0, 0, 0, 0.15);

    /* отступы */
    --pad-card: 24px;
    --pad-input: 14px;
    --pad-btn-sec: 8px 14px;
    --pad-tooltip: 10px;
    --gap-main: 12px;
    --gap-small: 10px;
    --max-width-desktop: 1350px;
    --max-width-auth: 360px;
    --max-width-logo: 240px;

    /* анимация */
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: background-color 0.2s, color 0.2s;
    --transition-clicker: transform 0.1s ease, background 0.2s, box-shadow 0.2s;
    --transition-tooltip: opacity 0.5s ease, transform 0.5s ease;
    --transition-fab: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.2s ease;
    --anim-duration-particle: 2s;
    --anim-duration-shake: 0.3s;
}

/* шрифты */
@font-face {
    font-family: 'Patefon';
    src: url('assets/fonts/Patefon-Regular.otf') format('opentype');
    font-weight: 400;
    font-style: normal;
}
@font-face {
    font-family: 'Patefon';
    src: url('assets/fonts/Patefon-Italic.otf') format('opentype');
    font-weight: 400;
    font-style: italic;
}
@font-face {
    font-family: 'Patefon';
    src: url('assets/fonts/Patefon-Light.otf') format('opentype');
    font-weight: 300;
    font-style: normal;
}
@font-face {
    font-family: 'Patefon';
    src: url('assets/fonts/Patefon-Bold.otf') format('opentype');
    font-weight: 700;
    font-style: normal;
}
@font-face {
    font-family: 'Patefon';
    src: url('assets/fonts/Patefon-Bold-Italic.otf') format('opentype');
    font-weight: 700;
    font-style: italic;
}

/* базовые */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Patefon', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    min-height: 100vh;
    padding: var(--gap-main);
    -webkit-font-smoothing: antialiased;
}

#app {
    width: 100%;
    display: flex;
    flex-direction: column;
}

/* сетка */
.cardholder {
    width: 100%;
    max-width: var(--max-width-desktop);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.25fr 1fr;
    gap: var(--gap-main);
    align-items: start;
}

.cardholder .stats-section {
    grid-column: 1;
    order: 1;
    display: flex;
    flex-direction: column;
}

.cardholder .clicker-section {
    grid-column: 2;
    order: 2;
}

.cardholder .profile-section {
    grid-column: 3;
    order: 3;
}

/* карточки */
.card {
    background: var(--card-bg);
    backdrop-filter: var(--blur-card);
    -webkit-backdrop-filter: var(--blur-card);
    padding: var(--pad-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: var(--gap-main);
    border: var(--border-card);
}

.transparent-card {
    margin-block: var(--gap-main);
}

.hidden {
    display: none !important;
}

#auth-section, #change-password-section {
    display: flex;
    flex-direction: column;
    max-width: var(--max-width-auth);
    width: 100%;
    align-self: center;
    margin: auto 0;
}

/* заголовки */
h2 {
    font-size: 1.5rem;
    margin-bottom: 6px;
}

h3 {
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 14px;
    font-weight: 600;
}

hr {
    border: 0;
    border-top: var(--border-light);
    margin: var(--gap-small);
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

label, .app-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 6px;
    display: block;
}

/* формы */
.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--gap-main);
    margin-bottom: var(--gap-main);
}

input, select {
    font-family: inherit;
    width: 100%;
    padding: var(--pad-input);
    border: var(--border-light);
    border-radius: var(--radius);
    background-color: var(--input-bg);
    font-size: 1rem;
    color: var(--text-main);
    transition: var(--transition);
}

select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: 
        linear-gradient(45deg, transparent 50%, var(--text-muted) 50%),
        linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
    background-position: 
        calc(100% - 20px) center,
        calc(100% - 15px) center;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
    padding-right: 40px;
    cursor: pointer;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light-alpha);
}

/* кнопки */
.btn {
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--pad-input) 24px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    user-select: none;
}

.btn-primary { 
    background-color: var(--primary); 
    color: var(--text-on-primary); 
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--text-muted);
    padding: var(--pad-btn-sec);
    font-size: 0.85rem;
    border: var(--border-btn-sec);
    width: auto;
}

.btn-row {
    display: flex;
    justify-content: space-between;
    gap: var(--gap-main)
}

/* шапка */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    padding: 0 4px;
    margin-bottom: 10px;
    gap: var(--gap-small);
}

.logo-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-width: 0;
    flex: 1;
}

.app-logo {
    width: 100%;
    max-width: var(--max-width-logo);
    height: auto;
    display: block;
    object-fit: contain;
    user-select: none;
}

.app-header h1 { 
    font-size: 1.4rem; 
    font-weight: 800; 
}

.date-badge { 
    font-size: 0.85rem; 
    color: var(--text-muted); 
}

/* метрики */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap-main);
    margin-bottom: var(--gap-main);
}

.stats-grid .card { 
    margin-bottom: 0; 
    text-align: left; 
}

.big-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-main);
    display: flex;
    align-items: end;
    gap: 4px;
}

.big-number small { 
    font-size: 0.9rem; 
    font-weight: 500; 
    color: var(--text-muted); 
}

.counter-card .big-number { 
    color: var(--primary); 
}

.pace-card, .counter-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 120px; 
}

/* тип */
.info-icon {
    position: absolute;
    top: var(--radius);
    right: var(--radius);
    width: calc(2 * var(--radius));
    height: calc(2 * var(--radius));
    background-color: var(--card-bg);
    color: var(--text-muted);
    border-radius: var(--radius-round);
    border: var(--border-btn-sec);
    font-size: 0.75rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: help;
    transition: var(--transition-fast);
    user-select: none;
}

.info-icon:hover {
    background-color: var(--primary);
    color: var(--bg-main);
}

.info-icon .tooltip-box {
    position: absolute;
    bottom: 125%;
    right: 0;
    width: max-content;
    background-color: var(--bg-main);
    color: var(--text-main);
    font-size: 0.75rem;
    font-weight: normal;
    text-align: left;
    padding: var(--pad-tooltip);
    border-radius: var(--radius);
    box-shadow: var(--shadow-tooltip);
    opacity: 0;
    pointer-events: none;
    transform: translateY(5px);
    transition: var(--transition-tooltip);
}

.info-icon:hover .tooltip-box {
    opacity: 1;
    transform: translateY(0);
}

.info-button {
    cursor: pointer;
    width: calc(4 * var(--radius));
    height: calc(2 * var(--radius));
    border-radius: var(--radius);
    font-size: 1rem;
}
.info-button:hover {
    background-color: var(--fats);
}

/* макронутриенты */
.macros-progress-container {
    display: flex;
    justify-content: space-between;
    gap: 10px;
}

.macro-item {
    flex: 1;
    background: rgba(0, 0, 0, 0.02);
    padding: var(--gap-main);
    border-radius: var(--radius);
    text-align: center;
    border-top: 4px solid var(--text-muted);
}

.macro-item.protein { border-top-color: var(--primary-hover); }
.macro-item.fats { border-top-color: var(--fats); }
.macro-item.carbs { border-top-color: var(--danger); }

.macro-label { 
    display: block; 
    font-size: 0.8rem; 
    color: var(--text-muted); 
    margin-bottom: 4px; 
}

.macro-value { 
    font-weight: 700; 
    font-size: 1.05rem; 
}

/* кликер */
.clicker-layout {
    display: flex;
    flex-direction: column;
    gap: var(--gap-main);
}

.btn-group {
    display: grid;
    gap: 10px;
}

.increment-group, 
.decrement-group { 
    grid-template-columns: repeat(2, 1fr); 
}

.btn-click {
    font-family: inherit;
    background: var(--primary);
    border: 1px solid rgba(0,0,0,0.06);
    padding: 18px 10px;
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: var(--radius);
    cursor: pointer;
    box-shadow: var(--shadow-click);
    transition: var(--transition-clicker);
    color: var(--bg-main);
    user-select: none;
}

.btn-click:active {
    transform: scale(0.92);
    box-shadow: var(--shadow-click-active);
}

.btn-increment {
    height: 8rem;
}

.btn-click.btn-danger {
    background: var(--danger-light-alpha);
    color: var(--danger);
    border-color: var(--danger-border-alpha);
    font-size: 0.9rem;
    padding: 12px;
}

/* профайл */
.profile-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap-main);
    text-align: left;
}

.profile-grid .full-width { 
    grid-column: span 2; 
    margin-top: 6px; 
}

.stats-row {
    display: flex;
    justify-content: space-between;
    gap: var(--gap-small);
}

#profile-status-emoji, #stats-emoji {
    font-size: 2.5rem;
    user-select: none;
}

/* сохранение профиля */
.btn-profile-save {
    position: fixed;
    top: 50%;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-round);
    background-color: var(--primary);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-save-fab);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    z-index: 1000;
    
    opacity: 0;
    transform: scale(0) rotate(-45deg);
    transition: var(--transition-fab);
    pointer-events: none;
}

.btn-profile-save.show {
    opacity: 1;
    transform: scale(1) rotate(0deg);
    pointer-events: auto;
}

.btn-profile-save:active {
    transform: scale(0.9) !important;
}

/* аним */
.fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.error-message {
    color: var(--danger);
    font-size: 0.85rem;
    margin-top: 10px;
    font-weight: 500;
}

.pace-gain { color: var(--danger) !important; }
.pace-loss { color: var(--success) !important; }

/* ховеры */
@media (hover: hover) {
    .btn-primary:hover { 
        background-color: var(--primary-hover); 
    }
    .btn-secondary:hover { 
        background: rgba(0,0,0,0.02); 
        color: var(--text-main); 
    }
    .btn-click:hover { 
        background: var(--primary-hover); 
    }
    .btn-click.btn-danger:hover { 
        background: var(--danger-border-alpha); 
    }
    .btn-profile-save:hover {
        background-color: var(--primary-hover);
    }
}

/* адаптив */
@media (max-width: 1280px) {
    .cardholder {
        max-width: 480px;
        display: flex;
        flex-direction: column;
        gap: 0;
    }
    .cardholder .clicker-section { order: 1; width: 100%; }
    .cardholder .stats-section { order: 2; width: 100%; }
    .cardholder .profile-section { order: 3; width: 100%; }
}

@media (max-width: 768px) {
    .info-icon .tooltip-box {
        width: fit-content;
    } 
    .big-number {
        font-size: 1.75rem;
    }
    .big-number small { 
        font-size: 0.75rem;
    }
    .profile-stats-grid {
        grid-template-columns: 1fr;
    }
    .profile-stat-card.status-card {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }
    .profile-stat-card.status-card .stat-value {
        font-size: 1.3rem;
    }
}

/* фанстафф */
.emoji-explosion-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 9999;
}

.emoji-particle {
    position: absolute;
    pointer-events: none;
    user-select: none;
    font-size: 2rem;
    will-change: transform, opacity;
    left: var(--x);
    top: var(--y);
    transform: translate(-50%, -50%);
    animation: explodeParticle var(--anim-duration-particle) cubic-bezier(0.1, 0.8, 0.5, 1) forwards;
}

@keyframes explodeParticle {
    0% {
        transform: translate(-50%, -50%) translate(0, 0) scale(0) rotate(0deg);
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
    100% {
        transform: translate(-50%, -50%) translate(var(--tx), calc(var(--ty) + 50px)) scale(1) rotate(var(--tr));
        opacity: 0;
    }
}

.burger-row {
    letter-spacing: -2.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 480px;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-5px); }
    40%, 80% { transform: translateX(5px); }
}

.btn-click.limit-reached {
    background-color: var(--danger) !important;
    border-color: var(--danger-hover) !important;
    animation: shake var(--anim-duration-shake) ease-in-out;
    box-shadow: 0 0 15px var(--danger-glow);
}