/* ===========================================
   ASTITVA SAWHNEY - MARKETING PORTFOLIO
   Warm, Light, Modern Aesthetic with Data Visualizations
   =========================================== */

/* ============= CSS VARIABLES ============= */
:root {
    /* Color Palette - Warm & Modern */
    --color-cream: #FAF8F5;
    --color-beige: #F5F1ED;
    --color-white: #FFFFFF;
    --color-terracotta: #E07856;
    --color-terracotta-dark: #C86343;
    --color-olive: #6B8E4E;
    --color-olive-dark: #5A7841;
    --color-navy: #2C4251;
    --color-navy-light: #3D5563;
    --color-teal: #4A9B8E;
    --color-amber: #F4A261;
    --color-coral: #FF8674;
    --color-sage: #A8C69F;
    --color-peach: #FFD4C4;
    --color-shadow: rgba(44, 66, 81, 0.1);
    --color-shadow-dark: rgba(44, 66, 81, 0.2);
    
    /* Typography */
    --font-serif: 'Fraunces', serif;
    --font-sans: 'Plus Jakarta Sans', sans-serif;
    --font-mono: 'Space Grotesk', monospace;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 96px;
    --spacing-4xl: 128px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 200ms ease;
    --transition-normal: 400ms ease-out;
    --transition-slow: 600ms ease-in-out;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px var(--color-shadow);
    --shadow-md: 0 4px 16px var(--color-shadow);
    --shadow-lg: 0 8px 32px var(--color-shadow-dark);
    --shadow-xl: 0 16px 48px var(--color-shadow-dark);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-cream);
    color: var(--color-navy);
    line-height: 1.7;
    overflow-x: hidden;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-navy);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h5 { font-size: clamp(1.125rem, 2vw, 1.5rem); }
h6 { font-size: clamp(1rem, 1.5vw, 1.25rem); }

p {
    margin-bottom: var(--spacing-md);
}

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

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

ul, ol {
    list-style: none;
}

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

/* ============= UTILITY CLASSES ============= */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* Section Spacing */
section {
    padding: var(--spacing-4xl) 0;
    position: relative;
}

@media (max-width: 968px) {
    section {
        padding: var(--spacing-3xl) 0;
    }
}

@media (max-width: 768px) {
    section {
        padding: var(--spacing-2xl) 0;
    }
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-terracotta), var(--color-olive));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--color-navy-light);
    font-weight: 500;
}

/* Text Utilities */
.large-text {
    font-size: 1.5rem;
    line-height: 1.6;
    font-weight: 500;
    margin-bottom: var(--spacing-xl);
}

.medium-text {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-navy-light);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-terracotta), var(--color-terracotta-dark));
    color: var(--color-white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-navy);
    border: 2px solid var(--color-terracotta);
}

.btn-secondary:hover {
    background: var(--color-terracotta);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* Cards */
.card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

/* ============= NAVIGATION ============= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(250, 248, 245, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.navbar.scrolled {
    padding: var(--spacing-sm) 0;
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-navy);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--color-navy);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-terracotta);
    transition: var(--transition-fast);
}

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

.nav-link-cta {
    background: var(--color-terracotta);
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
}

.nav-link-cta:hover {
    background: var(--color-terracotta-dark);
    transform: translateY(-2px);
}

.nav-link-cta::after {
    display: none;
}

/* Hamburger Menu */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-sm);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-navy);
    transition: var(--transition-fast);
}

@media (max-width: 968px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-cream);
        flex-direction: column;
        padding: var(--spacing-xl);
        gap: var(--spacing-md);
        transform: translateX(-100%);
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
}

/* ============= HERO SECTION ============= */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-peach) 100%);
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at 20% 50%, rgba(224, 120, 86, 0.1) 0%, transparent 50%),
                      radial-gradient(circle at 80% 80%, rgba(107, 142, 78, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: 0 var(--spacing-lg);
}

.hero-badge {
    display: inline-block;
    background: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-terracotta);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.hero-title {
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-navy-light);
    margin-bottom: var(--spacing-md);
}

.hero-tagline {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-style: italic;
    color: var(--color-terracotta);
    margin-bottom: var(--spacing-xl);
    line-height: 1.4;
}

.hero-intro {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-navy-light);
    margin-bottom: var(--spacing-2xl);
}

/* Hero Stats */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    font-size: 2rem;
    color: var(--color-terracotta);
    margin-bottom: var(--spacing-sm);
}

.stat-number {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-navy-light);
    font-weight: 500;
}

/* Hero CTA */
.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    color: var(--color-terracotta);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ============= PHILOSOPHY SECTION ============= */
.philosophy {
    background: var(--color-white);
}

.philosophy-intro {
    max-width: 900px;
    margin: 0 auto var(--spacing-3xl) auto;
    text-align: center;
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.principle-card {
    background: var(--color-cream);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

.principle-card:hover {
    border-color: var(--color-terracotta);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.principle-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-terracotta), var(--color-olive));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.principle-icon i {
    font-size: 2rem;
    color: var(--color-white);
}

.principle-title {
    margin-bottom: var(--spacing-sm);
    color: var(--color-navy);
}

.principle-subtitle {
    font-size: 1rem;
    font-style: italic;
    color: var(--color-terracotta);
    margin-bottom: var(--spacing-md);
}

.principle-list {
    list-style: none;
}

.principle-list li {
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    position: relative;
    color: var(--color-navy-light);
}

.principle-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-terracotta);
    font-weight: 700;
}

.philosophy-quote {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.philosophy-quote blockquote {
    background: linear-gradient(135deg, var(--color-terracotta), var(--color-olive));
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    position: relative;
}

.philosophy-quote blockquote::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: var(--spacing-lg);
    font-size: 6rem;
    color: rgba(255, 255, 255, 0.3);
    font-family: var(--font-serif);
}

.philosophy-quote p {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-white);
    font-style: italic;
    margin: 0;
    line-height: 1.6;
}

/* ============= JOURNEY SECTION ============= */
.journey {
    background: linear-gradient(to bottom, var(--color-cream), var(--color-beige));
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--color-terracotta), var(--color-olive));
}

@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
    }
}

.timeline-item {
    position: relative;
    padding-left: 100px;
    margin-bottom: var(--spacing-3xl);
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-slow);
}

.timeline-item.animate {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    .timeline-item {
        padding-left: 60px;
    }
}

.timeline-marker {
    position: absolute;
    left: 0;
    top: 0;
    width: 80px;
    height: 80px;
    background: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    border: 4px solid var(--color-terracotta);
}

@media (max-width: 768px) {
    .timeline-marker {
        width: 50px;
        height: 50px;
    }
}

.timeline-number {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-terracotta);
}

@media (max-width: 768px) {
    .timeline-number {
        font-size: 1rem;
    }
}

.timeline-content {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.timeline-content:hover {
    box-shadow: var(--shadow-lg);
}

.timeline-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-terracotta), var(--color-olive));
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.timeline-title {
    margin-bottom: var(--spacing-xs);
}

.timeline-role {
    font-size: 1.125rem;
    color: var(--color-terracotta);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.timeline-description {
    margin-bottom: var(--spacing-md);
    color: var(--color-navy-light);
}

.timeline-highlights {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.timeline-highlights li {
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    position: relative;
    color: var(--color-navy-light);
}

.timeline-highlights li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-olive);
    font-weight: 700;
}

.timeline-learning {
    background: var(--color-cream);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-terracotta);
    font-style: italic;
}

.timeline-item.current .timeline-marker {
    border-color: var(--color-olive);
    background: var(--color-olive);
}

.timeline-item.current .timeline-number {
    color: var(--color-white);
}

/* ============= CASE STUDIES SECTION ============= */
.case-studies {
    background: var(--color-white);
}

/* Case Tabs */
.case-tabs {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    overflow-x: auto;
    padding-bottom: var(--spacing-sm);
}

.case-tab {
    flex: 1;
    min-width: 180px;
    background: var(--color-cream);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    cursor: pointer;
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

.case-tab:hover {
    border-color: var(--color-terracotta);
    transform: translateY(-2px);
}

.case-tab.active {
    background: linear-gradient(135deg, var(--color-terracotta), var(--color-olive));
    border-color: transparent;
}

.case-tab-number {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-terracotta);
    margin-bottom: var(--spacing-xs);
}

.case-tab.active .case-tab-number {
    color: var(--color-white);
}

.case-tab-title {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: var(--spacing-xs);
}

.case-tab.active .case-tab-title {
    color: var(--color-white);
}

.case-tab-subtitle {
    display: block;
    font-size: 0.875rem;
    color: var(--color-navy-light);
}

.case-tab.active .case-tab-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

/* Case Content */
.case-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.case-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Case Header */
.case-header {
    margin-bottom: var(--spacing-2xl);
}

.case-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-navy);
}

.case-meta {
    background: var(--color-cream);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

.case-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

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

.case-meta-item i {
    color: var(--color-terracotta);
    margin-top: 4px;
}

.case-meta-item strong {
    color: var(--color-navy);
}

/* Case Sections */
.case-challenge,
.case-diagnosis,
.case-solution,
.case-stress-test,
.case-impact,
.case-learnings {
    margin-bottom: var(--spacing-3xl);
}

.case-section-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-navy);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.case-section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, var(--color-terracotta), var(--color-olive));
}

.case-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-navy-light);
    margin-bottom: var(--spacing-lg);
}

.case-text-emphasis {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.7;
    color: var(--color-navy);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-cream);
    border-left: 4px solid var(--color-terracotta);
    border-radius: var(--radius-md);
}

/* Challenge Cards */
.challenge-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.challenge-card {
    background: var(--color-beige);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-terracotta);
}

.challenge-card i {
    font-size: 1.5rem;
    color: var(--color-terracotta);
    margin-bottom: var(--spacing-sm);
}

.challenge-card strong {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--color-navy);
}

.challenge-card p {
    margin: 0;
    font-size: 0.9375rem;
    color: var(--color-navy-light);
}

/* Insight Sections */
.insight-section {
    background: var(--color-cream);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.insight-title {
    color: var(--color-terracotta);
    margin-bottom: var(--spacing-md);
}

.insight-conclusion {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-white);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-olive);
}

/* Architecture Comparison */
.architecture-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.architecture-before,
.architecture-after {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.architecture-before {
    border: 2px solid var(--color-coral);
}

.architecture-after {
    border: 2px solid var(--color-olive);
}

.architecture-before h5 {
    color: var(--color-coral);
    margin-bottom: var(--spacing-lg);
}

.architecture-after h5 {
    color: var(--color-olive);
    margin-bottom: var(--spacing-lg);
}

.system-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.system-node {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-align: center;
}

.system-node.mixed {
    background: var(--color-coral);
    color: var(--color-white);
}

.system-arrow {
    font-size: 1.5rem;
    color: var(--color-navy-light);
}

.system-nodes-mixed {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.system-nodes-mixed span {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-beige);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.system-result {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    width: 100%;
}

.system-result.negative {
    background: rgba(255, 134, 116, 0.1);
    border: 2px solid var(--color-coral);
}

.system-result.positive {
    background: rgba(107, 142, 78, 0.1);
    border: 2px solid var(--color-olive);
}

.account-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    width: 100%;
}

.account-card {
    background: var(--color-olive);
    color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
}

.account-card strong {
    display: block;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
    opacity: 0.9;
}

.account-card p {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.account-card small {
    font-size: 0.8125rem;
    opacity: 0.8;
}

/* Architecture Benefits */
.architecture-benefits {
    margin-top: var(--spacing-xl);
}

.comparison-table {
    overflow-x: auto;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.comparison-table th,
.comparison-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-beige);
}

.comparison-table th {
    background: var(--color-cream);
    font-weight: 600;
    color: var(--color-navy);
}

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

.comparison-table .positive {
    color: var(--color-olive);
    font-weight: 600;
}

.comparison-table .negative {
    color: var(--color-coral);
    font-weight: 600;
}

/* Stress Test Chart */
.stress-test-chart {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin: var(--spacing-xl) 0;
}

/* Impact Metrics */
.impact-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.impact-card {
    background: var(--color-cream);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 2px solid transparent;
    transition: var(--transition-normal);
}

.impact-card:hover {
    border-color: var(--color-terracotta);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.impact-number {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-terracotta);
    margin-bottom: var(--spacing-xs);
}

.impact-label {
    color: var(--color-navy-light);
    font-weight: 500;
}

/* Case Note */
.case-note {
    background: linear-gradient(135deg, var(--color-terracotta), var(--color-olive));
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin: var(--spacing-xl) 0;
}

.case-note h5 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.case-note p {
    color: var(--color-white);
    font-style: italic;
    margin: 0;
    line-height: 1.7;
}

/* Impact Grid */
.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.impact-item {
    background: var(--color-cream);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.impact-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.impact-item i {
    font-size: 2rem;
    color: var(--color-terracotta);
    margin-bottom: var(--spacing-md);
}

.impact-item h5 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-navy);
}

.impact-item p {
    margin: 0;
    color: var(--color-navy-light);
    font-size: 0.9375rem;
}

/* KPI Dashboard */
.kpi-dashboard {
    background: var(--color-cream);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin: var(--spacing-xl) 0;
}

.kpi-dashboard h5 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--color-navy);
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.kpi-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition-normal);
}

.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-sm);
}

.kpi-icon {
    margin-bottom: var(--spacing-sm);
}

.kpi-icon i {
    font-size: 1.5rem;
    color: var(--color-terracotta);
}

.kpi-value {
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: var(--spacing-xs);
}

.kpi-label {
    font-size: 0.875rem;
    color: var(--color-navy-light);
}

/* Learnings */
.learnings-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.learning-item {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
    background: var(--color-cream);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.learning-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.learning-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-terracotta), var(--color-olive));
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 700;
}

.learning-content strong {
    display: block;
    color: var(--color-navy);
    margin-bottom: var(--spacing-xs);
}

.learning-content p {
    margin: 0;
    color: var(--color-navy-light);
}

/* ============= SCROLL TO TOP BUTTON ============= */
.scroll-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-terracotta), var(--color-olive));
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ============= RESPONSIVE DESIGN ============= */
@media (max-width: 968px) {
    :root {
        font-size: 15px;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .principles-grid {
        grid-template-columns: 1fr;
    }
    
    .case-tabs {
        flex-direction: column;
    }
    
    .case-tab {
        min-width: 100%;
    }
    
    .architecture-comparison {
        grid-template-columns: 1fr;
    }
    
    .account-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
        text-align: center;
    }
    
    .case-meta-grid {
        grid-template-columns: 1fr;
    }
    
    .challenge-cards {
        grid-template-columns: 1fr;
    }
    
    .impact-metrics {
        grid-template-columns: 1fr;
    }
    
    .impact-grid {
        grid-template-columns: 1fr;
    }
    
    .kpi-grid {
        grid-template-columns: 1fr;
    }
    
    .learning-item {
        flex-direction: column;
    }
}