/* ═══════════════════════════════════════════════════════
   KibbleMath — The Pet Food True Nutrition Calculator
   Warm, pet-friendly design with glassmorphism accents
   ═══════════════════════════════════════════════════════ */

/* ═══════════════ DESIGN TOKENS ═══════════════ */
:root {
    /* Brand palette */
    --cream:        #FFF8F0;
    --cream-dark:   #F5EDE3;
    --sandy-tan:    #E8D5B7;
    --sandy-light:  #F2E6D4;
    --terracotta:   #C75B39;
    --terracotta-dark: #A8492D;
    --terracotta-light: #E07B5C;
    --forest-teal:  #2A7F6F;
    --teal-dark:    #1E5F53;
    --teal-light:   #3AA08C;
    --golden-amber: #D4A843;
    --amber-light:  #E8C96A;
    --sage-green:   #7BA776;
    --warm-gray:    #B8A99A;
    --slate:        #8B9DAF;
    --slate-dark:   #6B7D8F;
    --deep-brown:   #3D2B1F;
    --warm-black:   #2C1E14;
    --gold-ribbon:  #DAA520;
    --gold-glow:    rgba(218, 165, 32, 0.25);

    /* Semantic */
    --bg:           var(--cream);
    --card-bg:      rgba(242, 230, 212, 0.55);
    --card-border:  rgba(200, 180, 150, 0.35);
    --glass-bg:     rgba(255, 248, 240, 0.65);
    --glass-border: rgba(255, 255, 255, 0.45);
    --text:         var(--deep-brown);
    --text-muted:   #7A6B5D;
    --text-light:   #9A8B7D;
    --success:      #3AA08C;
    --warning:      #D4A843;
    --danger:       #C75B39;

    /* Macro colors */
    --color-protein: var(--terracotta);
    --color-fat:     var(--golden-amber);
    --color-fiber:   var(--sage-green);
    --color-carbs:   var(--warm-gray);
    --color-ash:     var(--slate);

    /* Typography */
    --font-heading:  'Outfit', sans-serif;
    --font-body:     'Inter', sans-serif;
    --font-mono:     'JetBrains Mono', monospace;

    /* Spacing */
    --gap-xs: 0.25rem;
    --gap-sm: 0.5rem;
    --gap-md: 1rem;
    --gap-lg: 1.5rem;
    --gap-xl: 2rem;
    --gap-2xl: 3rem;

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadows (fur-texture warmth) */
    --shadow-soft:   0 2px 8px rgba(61, 43, 31, 0.06),
                     0 4px 20px rgba(61, 43, 31, 0.04);
    --shadow-card:   0 4px 16px rgba(61, 43, 31, 0.08),
                     0 8px 32px rgba(61, 43, 31, 0.05),
                     0 1px 3px rgba(61, 43, 31, 0.10);
    --shadow-hover:  0 8px 28px rgba(61, 43, 31, 0.12),
                     0 12px 48px rgba(61, 43, 31, 0.06);
    --shadow-glow:   0 0 20px rgba(199, 91, 57, 0.15);

    /* Transitions */
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --duration: 0.3s;
}

/* ═══════════════ RESET & BASE ═══════════════ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* ═══════════════ PAW PRINT BACKGROUND ═══════════════ */
.paw-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.035;
    background-image:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Ctext x='20' y='45' font-size='28' fill='%233D2B1F' transform='rotate(-15 40 40)'%3E🐾%3C/text%3E%3C/svg%3E");
    background-size: 120px 120px;
}

/* ═══════════════ HEADER ═══════════════ */
#site-header {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: var(--gap-xl) var(--gap-md) var(--gap-lg);
    background: linear-gradient(180deg, rgba(199, 91, 57, 0.08) 0%, transparent 100%);
}

.header-inner {
    max-width: 700px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--gap-sm);
}

.logo-icon {
    font-size: 2.2rem;
    animation: pawBounce 2s var(--ease-out) infinite;
}

@keyframes pawBounce {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25%      { transform: translateY(-6px) rotate(-8deg); }
    50%      { transform: translateY(0) rotate(0deg); }
    75%      { transform: translateY(-3px) rotate(5deg); }
}

.logo h1 {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--deep-brown);
    letter-spacing: -0.02em;
}

.logo .accent {
    color: var(--terracotta);
}

.tagline {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-top: var(--gap-xs);
}

.subtitle {
    font-size: 0.92rem;
    color: var(--text-light);
    margin-top: var(--gap-xs);
}

.subtitle em {
    color: var(--terracotta);
    font-style: italic;
    font-weight: 600;
}

/* ═══════════════ AD SLOTS ═══════════════ */
.ad-slot {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--gap-md) auto;
    border: 2px dashed var(--sandy-tan);
    border-radius: var(--radius-sm);
    background: var(--cream-dark);
    color: var(--text-light);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    position: relative;
    z-index: 5;
}

.ad-mobile {
    width: 320px;
    height: 50px;
    max-width: 95%;
}

.ad-desktop {
    width: 728px;
    height: 90px;
    max-width: 95%;
    display: none;
}

@media (min-width: 768px) {
    .ad-mobile  { display: none; }
    .ad-desktop { display: flex; }
}

/* ═══════════════ MAIN ═══════════════ */
#main-content {
    position: relative;
    z-index: 5;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--gap-md) var(--gap-2xl);
}

/* ═══════════════ GLOBAL CONTROLS ═══════════════ */
.global-controls {
    margin-bottom: var(--gap-xl);
}

.control-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--gap-md);
}

/* Pet Toggle */
.pet-toggle {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
}

.toggle-label {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.toggle-switch {
    display: flex;
    background: var(--glass-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.toggle-btn {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.5rem 1.1rem;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--duration) var(--ease-out);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.toggle-btn.active {
    background: var(--forest-teal);
    color: #fff;
    border-radius: var(--radius-xl);
    box-shadow: 0 2px 10px rgba(42, 127, 111, 0.3);
}

.toggle-btn:hover:not(.active) {
    color: var(--forest-teal);
    background: rgba(42, 127, 111, 0.08);
}

.toggle-icon {
    font-size: 1.1rem;
}

/* DMB Info */
.dmb-info {
    position: relative;
}

.info-btn {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--forest-teal);
    background: rgba(42, 127, 111, 0.08);
    border: 1px solid rgba(42, 127, 111, 0.2);
    border-radius: var(--radius-xl);
    padding: 0.45rem 1rem;
    cursor: pointer;
    transition: all var(--duration) var(--ease-out);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.info-btn:hover {
    background: rgba(42, 127, 111, 0.15);
    border-color: rgba(42, 127, 111, 0.35);
}

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

.tooltip-card {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    width: 360px;
    max-width: 90vw;
    background: rgba(255, 248, 240, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--gap-lg);
    box-shadow: var(--shadow-hover);
    z-index: 100;
    animation: tooltipIn 0.25s var(--ease-out);
}

@keyframes tooltipIn {
    from { opacity: 0; transform: translateX(-50%) translateY(-6px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.tooltip-close {
    position: absolute;
    top: 8px;
    right: 12px;
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--text-light);
    cursor: pointer;
    line-height: 1;
    padding: 4px;
}

.tooltip-close:hover {
    color: var(--terracotta);
}

.tooltip-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--gap-sm);
    color: var(--forest-teal);
}

.tooltip-card p {
    font-size: 0.88rem;
    line-height: 1.55;
    color: var(--text);
    margin-bottom: var(--gap-sm);
}

.tooltip-card .formula {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    background: rgba(42, 127, 111, 0.08);
    padding: 0.5rem 0.8rem;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--forest-teal);
    color: var(--teal-dark);
}

.tooltip-card .example {
    font-size: 0.84rem;
    color: var(--text-muted);
    border-top: 1px solid var(--card-border);
    padding-top: var(--gap-sm);
    margin-top: var(--gap-sm);
    margin-bottom: 0;
}

/* Reset Button */
.reset-btn {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--glass-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-xl);
    padding: 0.5rem 1.1rem;
    cursor: pointer;
    transition: all var(--duration) var(--ease-out);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.reset-btn:hover {
    color: var(--terracotta);
    border-color: rgba(199, 91, 57, 0.3);
    background: rgba(199, 91, 57, 0.06);
}

/* ═══════════════ FOOD CARDS SECTION ═══════════════ */
.food-cards-section {
    margin-bottom: var(--gap-xl);
}

.food-cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap-lg);
}

@media (min-width: 768px) {
    .food-cards-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }
}

/* Individual Food Card */
.food-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--gap-lg);
    box-shadow: var(--shadow-card);
    transition: all var(--duration) var(--ease-out);
    position: relative;
    animation: cardIn 0.35s var(--ease-out);
}

@keyframes cardIn {
    from { opacity: 0; transform: translateY(16px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.food-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.food-card.winner-card {
    border-color: var(--gold-ribbon);
    box-shadow: var(--shadow-card), 0 0 24px var(--gold-glow);
}

.winner-ribbon {
    position: absolute;
    top: -10px;
    right: 16px;
    background: linear-gradient(135deg, var(--gold-ribbon), #F0C850);
    color: var(--warm-black);
    font-family: var(--font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-sm);
    box-shadow: 0 2px 8px rgba(218, 165, 32, 0.35);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    display: none;
}

.winner-card .winner-ribbon {
    display: block;
    animation: ribbonIn 0.4s var(--ease-out);
}

@keyframes ribbonIn {
    from { opacity: 0; transform: translateY(-8px) scale(0.9); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* Card Header */
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--gap-md);
    padding-bottom: var(--gap-sm);
    border-bottom: 1px solid var(--card-border);
}

.card-number {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    color: #fff;
    background: var(--terracotta);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-number.n2 { background: var(--forest-teal); }
.card-number.n3 { background: var(--golden-amber); }

.remove-card-btn {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-light);
    background: none;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    padding: 0.3rem 0.6rem;
    cursor: pointer;
    transition: all var(--duration) var(--ease-out);
}

.remove-card-btn:hover {
    color: var(--terracotta);
    border-color: rgba(199, 91, 57, 0.25);
    background: rgba(199, 91, 57, 0.06);
}

/* Form Fields */
.field-group {
    margin-bottom: var(--gap-md);
}

.field-group label {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: var(--gap-xs);
}

.field-group input,
.field-group select {
    width: 100%;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text);
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.8rem;
    transition: all var(--duration) var(--ease-out);
    outline: none;
}

.field-group input:focus,
.field-group select:focus {
    border-color: var(--forest-teal);
    box-shadow: 0 0 0 3px rgba(42, 127, 111, 0.12);
    background: #fff;
}

.field-group input[type="number"] {
    font-family: var(--font-mono);
    font-weight: 500;
}

.field-group select {
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237A6B5D' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 2rem;
}

.field-hint {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 3px;
    font-style: italic;
}

/* Guaranteed Analysis Section */
.ga-section {
    background: rgba(255, 255, 255, 0.3);
    border: 1px solid rgba(200, 180, 150, 0.2);
    border-radius: var(--radius-md);
    padding: var(--gap-md);
    margin-top: var(--gap-md);
}

.ga-title {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--terracotta);
    margin-bottom: var(--gap-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ga-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap-sm);
}

.ga-grid .field-group {
    margin-bottom: 0;
}

.ga-grid .field-group.full-width {
    grid-column: 1 / -1;
}

/* Optional Section */
.optional-section {
    margin-top: var(--gap-md);
    padding-top: var(--gap-md);
    border-top: 1px dashed var(--card-border);
}

.optional-toggle {
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-light);
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0;
    transition: color var(--duration) var(--ease-out);
}

.optional-toggle:hover {
    color: var(--forest-teal);
}

.optional-toggle .chevron {
    transition: transform var(--duration) var(--ease-out);
    font-size: 0.7rem;
}

.optional-toggle.open .chevron {
    transform: rotate(90deg);
}

.optional-fields {
    display: none;
    margin-top: var(--gap-sm);
}

.optional-fields.show {
    display: block;
    animation: slideDown 0.3s var(--ease-out);
}

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

.optional-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap-sm);
}

/* Add Food Button */
.add-food-wrap {
    text-align: center;
    margin-top: var(--gap-lg);
}

.add-food-btn {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--forest-teal);
    background: rgba(42, 127, 111, 0.06);
    border: 2px dashed rgba(42, 127, 111, 0.3);
    border-radius: var(--radius-lg);
    padding: 1rem 2rem;
    cursor: pointer;
    transition: all var(--duration) var(--ease-out);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.add-food-btn:hover {
    background: rgba(42, 127, 111, 0.12);
    border-color: rgba(42, 127, 111, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(42, 127, 111, 0.12);
}

.add-food-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.add-icon {
    font-size: 1.3rem;
    font-weight: 400;
}

.add-hint {
    display: block;
    font-size: 0.78rem;
    color: var(--text-light);
    margin-top: var(--gap-xs);
}

/* ═══════════════ RESULTS SECTION ═══════════════ */
.results-section {
    margin-bottom: var(--gap-xl);
    animation: fadeIn 0.4s var(--ease-out);
}

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

.results-heading,
.comparison-heading,
.aafco-heading {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--deep-brown);
    text-align: center;
    margin-bottom: var(--gap-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.heading-icon {
    font-size: 1.3rem;
}

.result-cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap-lg);
}

@media (min-width: 768px) {
    .result-cards-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }
}

/* Individual Result Card */
.result-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--gap-lg);
    box-shadow: var(--shadow-card);
    animation: cardIn 0.35s var(--ease-out);
    position: relative;
}

.result-card-header {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
    margin-bottom: var(--gap-md);
    padding-bottom: var(--gap-sm);
    border-bottom: 1px solid var(--card-border);
}

.result-food-name {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--deep-brown);
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.result-food-type {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-light);
    background: rgba(0,0,0,0.04);
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.dry-matter-badge {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--forest-teal);
    background: rgba(42, 127, 111, 0.08);
    border: 1px solid rgba(42, 127, 111, 0.15);
    border-radius: var(--radius-sm);
    padding: 0.35rem 0.7rem;
    text-align: center;
    margin-bottom: var(--gap-md);
}

/* Nutrient Rows — The Reveal */
.nutrient-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(200, 180, 150, 0.15);
}

.nutrient-row:last-child {
    border-bottom: none;
}

.nutrient-name {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    min-width: 80px;
}

.nutrient-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.dot-protein { background: var(--color-protein); }
.dot-fat     { background: var(--color-fat); }
.dot-fiber   { background: var(--color-fiber); }
.dot-carbs   { background: var(--color-carbs); }
.dot-ash     { background: var(--color-ash); }

.nutrient-values {
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
}

.value-as-fed {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--text-light);
    text-decoration: line-through;
    text-decoration-color: rgba(199, 91, 57, 0.4);
    opacity: 0.6;
}

.value-dmb {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--deep-brown);
}

.value-dmb.highlight-protein { color: var(--terracotta); }
.value-dmb.highlight-fat     { color: var(--golden-amber); }

/* Macro Bar Chart */
.macro-bar-wrap {
    margin-top: var(--gap-md);
    padding-top: var(--gap-md);
    border-top: 1px solid var(--card-border);
}

.macro-bar-label {
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: var(--gap-sm);
}

.macro-bar {
    height: 36px;
    border-radius: 18px;
    overflow: hidden;
    display: flex;
    background: rgba(0, 0, 0, 0.04);
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.06);
}

.macro-segment {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 600;
    color: #fff;
    min-width: 0;
    transition: width 0.5s var(--ease-out);
    overflow: hidden;
    white-space: nowrap;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.seg-protein { background: var(--color-protein); }
.seg-fat     { background: var(--color-fat); }
.seg-fiber   { background: var(--color-fiber); }
.seg-carbs   { background: var(--color-carbs); }
.seg-ash     { background: var(--color-ash); }

.macro-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    margin-top: var(--gap-sm);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.72rem;
    color: var(--text-muted);
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* Cost Badge */
.cost-badge {
    margin-top: var(--gap-md);
    background: linear-gradient(135deg, rgba(212, 168, 67, 0.1), rgba(212, 168, 67, 0.05));
    border: 1px solid rgba(212, 168, 67, 0.25);
    border-radius: var(--radius-md);
    padding: 0.8rem 1rem;
    text-align: center;
}

.cost-badge-title {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.cost-badge-value {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--golden-amber);
    margin-top: 2px;
}

.cost-badge-unit {
    font-family: var(--font-body);
    font-size: 0.72rem;
    color: var(--text-light);
}

/* ═══════════════ COMPARISON TABLE ═══════════════ */
.comparison-section {
    margin-bottom: var(--gap-xl);
    animation: fadeIn 0.4s var(--ease-out);
}

.comparison-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    font-size: 0.9rem;
}

.comparison-table thead th {
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--deep-brown);
    text-align: center;
    padding: 1rem 0.8rem;
    background: rgba(232, 213, 183, 0.4);
    border-bottom: 2px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 2;
}

.comparison-table thead th:first-child {
    text-align: left;
    border-radius: var(--radius-lg) 0 0 0;
}

.comparison-table thead th:last-child {
    border-radius: 0 var(--radius-lg) 0 0;
}

.comparison-table tbody td {
    padding: 0.7rem 0.8rem;
    text-align: center;
    border-bottom: 1px solid rgba(200, 180, 150, 0.15);
    font-family: var(--font-mono);
    font-size: 0.88rem;
    font-weight: 500;
}

.comparison-table tbody td:first-child {
    font-family: var(--font-heading);
    font-weight: 600;
    text-align: left;
    color: var(--text);
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

.comparison-table tbody tr:hover {
    background: rgba(42, 127, 111, 0.04);
}

.comparison-table .winner-cell {
    color: var(--forest-teal);
    font-weight: 700;
    position: relative;
}

.comparison-table .winner-cell::after {
    content: '👑';
    font-size: 0.7rem;
    margin-left: 4px;
}

.comparison-table .loser-cell {
    color: var(--text-light);
}

/* Row category labels */
.comparison-table .category-label {
    font-family: var(--font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--terracotta);
    padding: 0.5rem 0.8rem;
    background: rgba(199, 91, 57, 0.04);
}

/* ═══════════════ AAFCO SECTION ═══════════════ */
.aafco-section {
    margin-bottom: var(--gap-xl);
    animation: fadeIn 0.4s var(--ease-out);
}

.aafco-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap-md);
}

@media (min-width: 768px) {
    .aafco-cards {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

.aafco-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--gap-md);
    box-shadow: var(--shadow-soft);
}

.aafco-card-header {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--deep-brown);
    margin-bottom: var(--gap-sm);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.aafco-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0;
    font-size: 0.88rem;
}

.aafco-check .status-icon {
    font-size: 1rem;
    flex-shrink: 0;
}

.aafco-check .check-label {
    font-family: var(--font-body);
    color: var(--text);
}

.aafco-check .check-value {
    font-family: var(--font-mono);
    font-weight: 600;
    margin-left: auto;
}

.aafco-pass { color: var(--success); }
.aafco-fail { color: var(--danger); }

.aafco-min-note {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: var(--gap-xs);
    font-style: italic;
}

/* ═══════════════ FOOTER ═══════════════ */
#site-footer {
    position: relative;
    z-index: 5;
    text-align: center;
    padding: var(--gap-xl) var(--gap-md);
    background: linear-gradient(0deg, rgba(61, 43, 31, 0.03) 0%, transparent 100%);
    border-top: 1px solid var(--card-border);
}

.footer-inner {
    max-width: 600px;
    margin: 0 auto;
}

.footer-brand {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--deep-brown);
    margin-bottom: var(--gap-sm);
}

.footer-disclaimer {
    font-size: 0.78rem;
    color: var(--text-light);
    line-height: 1.5;
    margin-bottom: var(--gap-sm);
}

.footer-copy {
    font-size: 0.72rem;
    color: var(--text-light);
    opacity: 0.7;
}

/* ═══════════════ RESPONSIVE ENHANCEMENTS ═══════════════ */
@media (min-width: 768px) {
    .logo h1 {
        font-size: 3rem;
    }
    .logo-icon {
        font-size: 2.8rem;
    }
    .tagline {
        font-size: 1.15rem;
    }
    #site-header {
        padding: var(--gap-2xl) var(--gap-md) var(--gap-xl);
    }
    .results-heading,
    .comparison-heading,
    .aafco-heading {
        font-size: 1.8rem;
    }
}

@media (min-width: 1024px) {
    .food-cards-grid {
        grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    }
}

/* ═══════════════ UTILITY ═══════════════ */
[hidden] {
    display: none !important;
}

/* Smooth number transitions */
.value-animate {
    animation: valueFlash 0.4s var(--ease-out);
}

@keyframes valueFlash {
    0%   { color: var(--terracotta); transform: scale(1.08); }
    100% { color: inherit; transform: scale(1); }
}

/* Focus visible for accessibility */
:focus-visible {
    outline: 2px solid var(--forest-teal);
    outline-offset: 2px;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--cream-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--sandy-tan);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--warm-gray);
}