/* ========================================
   I Trusty Influencer Landing Page
   Mood Board Colors & Modern Design
   ======================================== */

/* === CSS VARIABLES === */
:root {
    /* Urban Jungle (Primary) - DEFAULT */
    --color-dark-green: #2C5530;
    --color-sage-green: #37A96B;
    --color-light-sage: #A8C68F;
    --color-forest: #53846C;
    
    /* Golden Hour (Accents) */
    --color-gold: #E8B44C;
    --color-peach: #EB9464;
    
    /* Mocha Mousse (Neutrals) */
    --color-cream: #E8DCC4;
    --color-taupe: #C9B8A8;
    
    /* Santorini (Accents) */
    --color-navy: #1A4599;
    --color-sky-blue: #53A8E2;
    
    /* Base */
    --color-white: #FFFFFF;
    --color-black: #3C3C3C;
    --color-gray-light: #F5F5F5;
    --color-gray-medium: #E0E0E0;
    
    /* Semantic Colors */
    --color-success: #37A96B;
    --color-warning: #E8B44C;
    --color-error: #E85D4C;
    --color-info: #53A8E2;
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-black);
    background: var(--color-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 2.25rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 1.75rem);
}

.section-title {
    text-align: center;
    color: var(--color-dark-green);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-forest);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* === BUTTONS === */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-normal);
    text-align: center;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-sage-green);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--color-dark-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--color-sage-green);
    border: 2px solid var(--color-sage-green);
}

.btn-outline:hover {
    background: var(--color-sage-green);
    color: var(--color-white);
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* === HEADER === */
.header {
    background: var(--color-white);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-normal);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo img {
    height: 50px;
    width: auto;
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--color-dark-green);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-sage-green);
    transition: var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 0.5rem;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 3px;
    background: var(--color-dark-green);
    border-radius: 3px;
    transition: var(--transition-fast);
}

/* === HERO SECTION === */
.hero {
    position: relative;
    padding: var(--spacing-xxl) 0;
    overflow: hidden;
    min-height: 600px;
    display: flex;
    align-items: center;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--color-light-sage) 0%, var(--color-cream) 100%);
    z-index: -1;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: var(--color-dark-green);
    opacity: 0.1;
}

.circle-1 {
    width: 400px;
    height: 400px;
    top: -200px;
    right: -100px;
}

.circle-2 {
    width: 300px;
    height: 300px;
    bottom: -150px;
    left: -100px;
}

.circle-3 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    color: var(--color-dark-green);
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-forest);
    margin-bottom: var(--spacing-xl);
}

/* === PARTNERSHIP MODELS === */
.partnership-models {
    padding: var(--spacing-xxl) 0;
    background: var(--color-white);
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.model-card {
    background: var(--color-white);
    border: 2px solid var(--color-sage-green);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.model-card:nth-child(2) {
    border-color: var(--color-gold);
}

.model-card:nth-child(3) {
    border-color: var(--color-sky-blue);
}

.model-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.model-featured {
    background: linear-gradient(to bottom, var(--color-white) 0%, var(--color-cream) 100%);
}

.model-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.badge-green {
    background: var(--color-sage-green);
    color: var(--color-white);
}

.badge-gold {
    background: var(--color-gold);
    color: var(--color-white);
}

.badge-blue {
    background: var(--color-sky-blue);
    color: var(--color-white);
}

.model-title {
    color: var(--color-dark-green);
    margin-bottom: var(--spacing-sm);
}

.model-description {
    color: var(--color-forest);
    margin-bottom: var(--spacing-md);
}

.model-benefits {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.model-benefits li {
    padding: 0.5rem 0;
    color: var(--color-black);
    font-size: 0.9375rem;
}

.models-note {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-forest);
    padding: var(--spacing-md);
    background: var(--color-gray-light);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-gold);
}

/* === CALCULATOR SECTION === */
.calculator-section {
    padding: var(--spacing-xxl) 0;
    background: var(--color-gray-light);
}

.calc-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--color-gray-medium);
    overflow-x: auto;
}

.calc-tab {
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 600;
    color: var(--color-forest);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    transition: var(--transition-fast);
    cursor: pointer;
    white-space: nowrap;
}

.calc-tab:hover {
    color: var(--color-sage-green);
}

.calc-tab.active {
    color: var(--color-sage-green);
    border-bottom-color: var(--color-sage-green);
}

.calc-content {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.calc-panel {
    display: none;
}

.calc-panel.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.calc-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.calc-section-title {
    color: var(--color-dark-green);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-light-sage);
}

/* Input Styles */
.input-group {
    margin-bottom: var(--spacing-md);
}

.input-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--color-dark-green);
    margin-bottom: var(--spacing-xs);
}

.input-group input[type="text"],
.input-group input[type="number"],
.input-group input[type="email"],
.input-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--color-gray-medium);
    border-radius: var(--radius-md);
    font-family: var(--font-secondary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.input-group input:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--color-sage-green);
}

.input-group small {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--color-forest);
}

/* Slider Input */
.slider-input {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-sm);
    align-items: center;
}

.slider-input input[type="range"] {
    width: 100%;
}

.slider-input input[type="number"] {
    width: 120px;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: var(--color-gray-medium);
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--color-sage-green);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--color-dark-green);
    transform: scale(1.2);
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--color-sage-green);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    transition: var(--transition-fast);
}

input[type="range"]::-moz-range-thumb:hover {
    background: var(--color-dark-green);
    transform: scale(1.2);
}

/* Tooltip */
.tooltip {
    position: relative;
    cursor: help;
    font-size: 0.875rem;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem;
    background: var(--color-dark-green);
    color: var(--color-white);
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-fast);
    z-index: 100;
}

.tooltip:hover::after {
    opacity: 1;
}

/* Commission Badge */
.commission-badge {
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-light-sage), var(--color-cream));
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-dark-green);
}

.commission-badge strong {
    font-size: 1.5rem;
    color: var(--color-sage-green);
}

/* Accordion */
.accordion {
    margin-bottom: var(--spacing-md);
}

.accordion-header {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-gray-light);
    border: none;
    border-radius: var(--radius-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--color-dark-green);
    cursor: pointer;
    transition: var(--transition-fast);
}

.accordion-header:hover {
    background: var(--color-light-sage);
}

.accordion-icon {
    transition: var(--transition-fast);
}

.accordion.open .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.accordion.open .accordion-content {
    max-height: 500px;
    padding-top: var(--spacing-md);
}

/* Results */
.results-content {
    margin-bottom: var(--spacing-lg);
}

.results-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.badge-indicative {
    background: var(--color-warning);
    color: var(--color-white);
}

.badge-accurate {
    background: var(--color-success);
    color: var(--color-white);
}

.cost-analysis,
.profit-analysis {
    background: var(--color-gray-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-family: 'Courier New', monospace;
    font-size: 0.9375rem;
    line-height: 1.8;
}

.cost-analysis strong,
.profit-analysis strong {
    color: var(--color-dark-green);
}

.markup-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
    margin-left: 0.5rem;
}

.markup-low {
    background: var(--color-error);
    color: var(--color-white);
}

.markup-good {
    background: var(--color-success);
    color: var(--color-white);
}

.markup-optimistic {
    background: var(--color-warning);
    color: var(--color-white);
}

.markup-high {
    background: var(--color-peach);
    color: var(--color-white);
}

.scenarios-table {
    width: 100%;
    margin: var(--spacing-lg) 0;
    border-collapse: collapse;
}

.scenarios-table th,
.scenarios-table td {
    padding: var(--spacing-sm);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-medium);
}

.scenarios-table th {
    background: var(--color-gray-light);
    color: var(--color-dark-green);
    font-weight: 600;
}

.progress-bar {
    height: 8px;
    background: var(--color-gray-light);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: var(--color-sage-green);
    border-radius: 4px;
    transition: width 1s ease;
}

.progress-fill.conservative {
    background: var(--color-sky-blue);
}

.progress-fill.average {
    background: var(--color-sage-green);
}

.progress-fill.optimistic {
    background: var(--color-gold);
}

.annual-projection {
    background: linear-gradient(135deg, var(--color-navy), var(--color-sky-blue));
    color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    margin: var(--spacing-lg) 0;
}

.annual-projection h4 {
    font-size: 0.875rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
}

.annual-projection .amount {
    font-size: 2rem;
    font-weight: 700;
}

.info-box {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
    border-left: 4px solid;
}

.info-box-primary {
    background: var(--color-cream);
    border-left-color: var(--color-gold);
    color: var(--color-black);
}

.info-box-blue {
    background: #E8F4FD;
    border-left-color: var(--color-sky-blue);
    color: var(--color-black);
}

.results-disclaimer {
    padding: var(--spacing-md);
    background: #FFF8E1;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--color-forest);
    margin-bottom: var(--spacing-md);
}

.results-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* === ABOUT SECTION === */
.about-section {
    padding: var(--spacing-xxl) 0;
    background: var(--color-cream);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.about-subtitle {
    color: var(--color-dark-green);
    margin-bottom: var(--spacing-md);
}

.about-text {
    color: var(--color-black);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-sage-green);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-forest);
}

.mission-card {
    background: linear-gradient(135deg, var(--color-sage-green), var(--color-dark-green));
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.mission-text {
    color: var(--color-white);
    font-size: 1.125rem;
    font-style: italic;
    text-align: center;
    line-height: 1.6;
    margin: 0;
}

.services-list {
    margin-bottom: var(--spacing-lg);
}

.services-list h4 {
    color: var(--color-dark-green);
    margin-bottom: var(--spacing-sm);
}

.services-list ul {
    list-style: none;
}

.services-list li {
    padding: 0.5rem 0;
    color: var(--color-black);
}

.link-primary {
    color: var(--color-sage-green);
    font-weight: 600;
}

.link-primary:hover {
    color: var(--color-dark-green);
}

/* Success Stories */
.success-stories {
    /* Already part of about-grid */
}

.story-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--color-gold);
}

.story-title {
    color: var(--color-dark-green);
    margin-bottom: var(--spacing-sm);
}

.story-text {
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.story-quote {
    font-style: italic;
    color: var(--color-forest);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--color-light-sage);
    margin: 0;
}

.revenue-examples-title {
    color: var(--color-dark-green);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.revenue-example {
    margin-bottom: var(--spacing-md);
}

.revenue-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.revenue-product {
    font-weight: 600;
    color: var(--color-dark-green);
}

.revenue-numbers {
    color: var(--color-forest);
    font-size: 0.9375rem;
}

.revenue-bar {
    height: 8px;
    background: var(--color-gray-light);
    border-radius: 4px;
    overflow: hidden;
}

.revenue-fill {
    height: 100%;
    background: var(--color-sage-green);
    border-radius: 4px;
    transition: width 1s ease;
}

/* === CONTACT SECTION === */
.contact-section {
    position: relative;
    padding: var(--spacing-xxl) 0;
    overflow: hidden;
}

.contact-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, var(--color-white), var(--color-light-sage));
    z-index: -1;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.contact-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.contact-header {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-avatar {
    width: 80px;
    height: 80px;
    background: var(--color-sage-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.avatar-initials {
    color: var(--color-white);
    font-size: 1.5rem;
    font-weight: 700;
}

.contact-info {
    flex: 1;
}

.contact-name {
    color: var(--color-dark-green);
    margin-bottom: 0.25rem;
}

.contact-title {
    color: var(--color-forest);
    font-size: 0.9375rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.contact-icon {
    font-size: 1.25rem;
}

.contact-item a {
    color: var(--color-sage-green);
    font-weight: 500;
}

.contact-item a:hover {
    color: var(--color-dark-green);
    text-decoration: underline;
}

.whatsapp-link {
    color: #25D366 !important;
    font-weight: 600;
}

.whatsapp-link:hover {
    color: #128C7E !important;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.form-title {
    color: var(--color-dark-green);
    margin-bottom: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--color-dark-green);
    margin-bottom: var(--spacing-xs);
}

textarea {
    resize: vertical;
}

/* === FOOTER === */
.footer {
    background: var(--color-dark-green);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-logo img {
    height: 50px;
    width: auto;
    margin-bottom: var(--spacing-sm);
    filter: brightness(0) invert(1);
}

.footer-tagline {
    color: var(--color-light-sage);
    font-style: italic;
}

.footer-title {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.footer-links,
.footer-contact {
    list-style: none;
}

.footer-links li,
.footer-contact li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a,
.footer-contact a {
    color: var(--color-cream);
    transition: var(--transition-fast);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--color-white);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-cream);
    font-size: 0.875rem;
}

/* === RESPONSIVE === */

/* Tablet */
@media (max-width: 1024px) {
    .calc-grid,
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .models-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --spacing-xxl: 2.5rem;
        --spacing-xl: 2rem;
    }
    
    .nav {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-lg);
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }
    
    .nav.active {
        left: 0;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .theme-switcher {
        margin-left: var(--spacing-sm);
    }
    
    .theme-btn {
        width: 40px;
        height: 40px;
    }
    
    .theme-btn svg {
        width: 18px;
        height: 18px;
    }
    
    .calc-tabs {
        flex-direction: column;
        border-bottom: none;
    }
    
    .calc-tab {
        border-bottom: 2px solid var(--color-gray-medium);
        border-left: 3px solid transparent;
    }
    
    .calc-tab.active {
        border-left-color: var(--color-sage-green);
        border-bottom-color: var(--color-gray-medium);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .results-actions {
        flex-direction: column;
    }
    
    .results-actions .btn {
        width: 100%;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    body {
        font-size: 14px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.25rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .logo img {
        height: 40px;
    }
    
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9375rem;
    }
    
    .calc-content {
        padding: var(--spacing-md);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* === ANIMATIONS === */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: slideInUp 0.6s ease forwards;
}

/* === THEME SWITCHER === */
.theme-switcher {
    position: relative;
    display: flex;
    align-items: center;
}

.theme-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-gray-light);
    border: 2px solid var(--color-gray-medium);
    cursor: pointer;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.theme-btn svg {
    width: 20px;
    height: 20px;
    color: var(--color-dark-green);
    transition: var(--transition-fast);
}

.theme-btn:hover {
    background: var(--color-light-sage);
    border-color: var(--color-sage-green);
    transform: scale(1.05);
}

.theme-btn:hover svg {
    color: var(--color-sage-green);
    transform: rotate(45deg);
}

.theme-dropdown {
    position: absolute;
    top: 55px;
    right: 0;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xs);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-normal);
    z-index: 1000;
}

.theme-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.theme-option {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-secondary);
    font-size: 0.9375rem;
    color: var(--color-black);
    cursor: pointer;
    transition: var(--transition-fast);
}

.theme-option:hover {
    background: var(--color-gray-light);
}

.theme-option.active {
    background: var(--color-sage-green);
    color: var(--color-white);
    font-weight: 600;
}

/* === THEME VARIANTS === */

/* Golden Hour Theme */
body[data-theme="golden-hour"] {
    --color-dark-green: #8B5A2B;
    --color-sage-green: #E8B44C;
    --color-light-sage: #F4D8A8;
    --color-forest: #A67C52;
    --color-gold: #FFD700;
    --color-peach: #EB9464;
    --color-cream: #FFF8E1;
    --color-taupe: #D4A574;
}

/* Mocha Mousse Theme */
body[data-theme="mocha-mousse"] {
    --color-dark-green: #5D4E37;
    --color-sage-green: #8B7355;
    --color-light-sage: #C9B8A8;
    --color-forest: #7A6A53;
    --color-gold: #D4A574;
    --color-peach: #C9B8A8;
    --color-cream: #F5F0E8;
    --color-taupe: #A89080;
}

/* Santorini Theme */
body[data-theme="santorini"] {
    --color-dark-green: #1A4599;
    --color-sage-green: #53A8E2;
    --color-light-sage: #A8D8EA;
    --color-forest: #2E5C8A;
    --color-gold: #F4C430;
    --color-peach: #FF9A76;
    --color-cream: #F0F8FF;
    --color-taupe: #B0C4DE;
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .mobile-toggle,
    .theme-switcher,
    .results-actions {
        display: none;
    }
    
    .calc-panel {
        display: block !important;
    }
    
    body {
        font-size: 12pt;
    }
}