/* ================================
   Atlassian Design System inspired Portfolio
   with Corporate Colors
   ================================ */

/* Root Variables */
:root {
    /* Corporate Colors */
    --color-primary: #0339A6;
    --color-primary-dark: #022874;
    --color-gold: #BF9004;
    --color-light-blue: #DAE8FF;
    --color-white: #FFFFFF;
    --color-purple: #1e03a5;
    
    /* Atlassian Design System Colors */
    --color-text-primary: #172B4D;
    --color-text-secondary: #6B778C;
    --color-text-subtle: #97A0AF;
    --color-background: #FFFFFF;
    --color-background-neutral: #F4F5F7;
    --color-background-input: #FAFBFC;
    --color-border: #DFE1E6;
    --color-border-focus: #4C9AFF;
    
    /* Shadows */
    --shadow-card: 0 1px 1px rgba(9, 30, 66, 0.13), 0 0 1px 0 rgba(9, 30, 66, 0.13);
    --shadow-overlay: 0 8px 12px rgba(9, 30, 66, 0.15), 0 0 1px rgba(9, 30, 66, 0.31);
    --shadow-raised: 0 1px 1px rgba(9, 30, 66, 0.25), 0 0 1px 1px rgba(9, 30, 66, 0.13);
    
    /* Typography */
    --font-family-primary: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-xxl: 48px;
    --space-xxxl: 64px;
    
    /* Border Radius */
    --radius-sm: 3px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    
    /* Transitions */
    --transition-base: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ================================
   Base Styles
   ================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.3;
    margin-bottom: var(--space-md);
}

h1 {
    font-size: 48px;
    font-weight: var(--font-weight-bold);
}

h2 {
    font-size: 36px;
}

h3 {
    font-size: 24px;
}

h4 {
    font-size: 20px;
}

p {
    margin-bottom: var(--space-md);
    color: var(--color-text-secondary);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition-base);
}

a:hover {
    color: var(--color-primary-dark);
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Section */
.section {
    padding: var(--space-xxxl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-xxl);
}

.section-title {
    font-size: 36px;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
    position: relative;
    display: inline-block;
}

.section-subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ================================
   Navigation
   ================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-card);
    z-index: 1000;
    transition: var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-overlay);
}

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

.nav-brand {
    display: flex;
    align-items: center;
}

.brand-text {
    font-size: 20px;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-xl);
}

.nav-link {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.nav-link:hover {
    background-color: var(--color-light-blue);
    color: var(--color-primary-dark);
}

.nav-link.active {
    background-color: var(--color-light-blue);
    color: var(--color-primary);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    margin: 3px 0;
    transition: var(--transition-base);
}

/* ================================
   Hero Section
   ================================ */

.hero {
    padding-top: calc(80px + var(--space-xxxl));
    padding-bottom: var(--space-xxxl);
    background: linear-gradient(135deg, rgba(218, 232, 255, 0.95) 0%, rgba(255, 255, 255, 0.95) 100%),
                linear-gradient(135deg, #0339A6 0%, #BF9004 100%);
    background-image: linear-gradient(135deg, rgba(218, 232, 255, 0.92) 0%, rgba(255, 255, 255, 0.92) 100%),
                      url('https://images.unsplash.com/photo-1497366216548-37526070297c?ixlib=rb-4.0.3&auto=format&fit=crop&w=2069&q=80');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(3, 57, 166, 0.08) 0%, rgba(191, 144, 4, 0.04) 100%);
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.95);
    padding: var(--space-xxl);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.hero-badge {
    display: inline-block;
    background: var(--color-gold);
    color: var(--color-white);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-lg);
    font-size: 14px;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 56px;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 20px;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-xxl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-semibold);
    font-size: 16px;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
}

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

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

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

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

.btn-large {
    padding: var(--space-lg) var(--space-xxl);
    font-size: 18px;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-xxl);
    margin-top: var(--space-xxl);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-top: var(--space-sm);
}

/* ================================
   About Section
   ================================ */

.about {
    background: var(--color-background-neutral);
}

.about-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xxl);
    box-shadow: var(--shadow-card);
    display: flex;
    gap: var(--space-xxl);
    align-items: flex-start;
}

.about-image {
    flex-shrink: 0;
}

.avatar-placeholder {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-gold) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 64px;
    border: 4px solid var(--color-white);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    position: relative;
}

.avatar-placeholder::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(3, 57, 166, 0.1) 0%, rgba(191, 144, 4, 0.1) 100%);
    pointer-events: none;
}

.about-info {
    flex: 1;
}

.about-name {
    font-size: 32px;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

.about-title {
    font-size: 18px;
    color: var(--color-gold);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-lg);
}

.about-description {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

/* Skills Grid */
.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.skill-tag {
    background: var(--color-light-blue);
    color: var(--color-primary);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: var(--font-weight-medium);
}

/* Certifications */
.about-certifications h4 {
    font-size: 18px;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

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

.cert-list li {
    padding: var(--space-sm) 0;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.cert-list i {
    color: var(--color-gold);
}

/* ================================
   Services Section
   ================================ */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.service-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-card);
    transition: var(--transition-base);
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-overlay);
    border-color: var(--color-primary);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-purple) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 28px;
    margin-bottom: var(--space-lg);
}

.service-title {
    font-size: 20px;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.service-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: var(--space-sm) 0;
    color: var(--color-text-secondary);
    position: relative;
    padding-left: var(--space-lg);
}

.service-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-gold);
    font-weight: var(--font-weight-bold);
}

/* ================================
   Portfolio Section
   ================================ */

.portfolio {
    background: var(--color-background-neutral);
}

/* Portfolio Filter */
.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xxl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: var(--transition-base);
}

.filter-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.filter-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.portfolio-item {
    transition: var(--transition-base);
}

.portfolio-item.hidden {
    display: none;
}

.portfolio-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: var(--transition-base);
    height: 100%;
    display: flex;
    flex-direction: column;
}

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

.portfolio-image {
    height: 200px;
    background: linear-gradient(135deg, var(--color-light-blue) 0%, var(--color-primary) 100%);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    overflow: hidden;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 48px;
    background: linear-gradient(135deg, rgba(3, 57, 166, 0.8) 0%, rgba(191, 144, 4, 0.8) 100%);
    opacity: 0;
    transition: var(--transition-base);
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-content {
    padding: var(--space-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.portfolio-tag {
    display: inline-block;
    background: var(--color-gold);
    color: var(--color-white);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-md);
}

.portfolio-title {
    font-size: 20px;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.portfolio-description {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
    flex: 1;
}

.portfolio-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: auto;
}

.tech-tag {
    background: var(--color-background-neutral);
    color: var(--color-text-secondary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 12px;
}

/* Portfolio Detail Button */
.btn-detail {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    font-size: 14px;
    transition: var(--transition-base);
    text-decoration: none;
}

.btn-detail:hover {
    background: var(--color-primary-dark);
    transform: translateX(4px);
    color: var(--color-white);
}

.btn-detail i {
    font-size: 12px;
    transition: transform 0.2s ease;
}

.btn-detail:hover i {
    transform: translateX(4px);
}

/* ================================
   CTA Section
   ================================ */

.cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: 36px;
    margin-bottom: var(--space-lg);
    color: var(--color-white);
}

.cta-description {
    font-size: 18px;
    margin-bottom: var(--space-xl);
    color: var(--color-white);
    opacity: 0.9;
}

/* ================================
   Contact Section - Enhanced CTA Design
   ================================ */

.contact {
    background: var(--color-background-neutral);
}

.contact-cta-container {
    max-width: 900px;
    margin: 0 auto;
}

/* Primary CTA */
.contact-cta-primary {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-xxl);
    box-shadow: var(--shadow-overlay);
    text-align: center;
    margin-bottom: var(--space-xxl);
    position: relative;
    overflow: hidden;
}

.contact-cta-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-gold) 100%);
}

.cta-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--color-light-blue);
    color: var(--color-primary);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-xl);
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-lg);
}

.cta-headline {
    font-size: 32px;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.cta-subtext {
    font-size: 18px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-xl);
}

.cta-benefits {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-primary);
}

.benefit-item i {
    color: var(--color-gold);
    font-size: 18px;
}

/* Enhanced Primary Button */
.btn-pulse {
    position: relative;
    padding: var(--space-lg) var(--space-xxl);
    animation: pulse 2s infinite;
}

.btn-pulse span {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.btn-pulse strong {
    font-size: 18px;
    font-weight: var(--font-weight-bold);
}

.btn-pulse small {
    font-size: 12px;
    font-weight: var(--font-weight-regular);
    opacity: 0.9;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 12px rgba(3, 57, 166, 0.3);
    }
    50% {
        box-shadow: 0 4px 20px rgba(3, 57, 166, 0.5);
    }
}

.cta-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-size: 14px;
    color: var(--color-text-subtle);
    margin-top: var(--space-md);
}

/* Alternative CTAs */
.contact-alternatives {
    margin-bottom: var(--space-xxl);
}

.contact-alternatives h4 {
    text-align: center;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

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

.btn-alternative {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    text-decoration: none;
}

.btn-alternative:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-raised);
}

.btn-alternative i {
    font-size: 24px;
    color: var(--color-primary);
    width: 40px;
    text-align: center;
}

.btn-alternative div {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.btn-alternative strong {
    color: var(--color-text-primary);
    font-size: 16px;
}

.btn-alternative span {
    color: var(--color-text-secondary);
    font-size: 14px;
}

/* Trust Indicators */
.trust-indicators {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-xxl);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    text-align: left;
}

.trust-item i {
    font-size: 32px;
    color: var(--color-gold);
}

.trust-item div {
    display: flex;
    flex-direction: column;
}

.trust-item strong {
    font-size: 20px;
    color: var(--color-text-primary);
}

.trust-item span {
    font-size: 14px;
    color: var(--color-text-secondary);
}

/* FAQ Section */
.contact-faq {
    background: var(--color-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
}

.contact-faq h4 {
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
}

.faq-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    transition: var(--transition-base);
}

.faq-item[open] {
    background: var(--color-background-neutral);
    border-color: var(--color-primary);
}

.faq-item summary {
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    cursor: pointer;
    padding: var(--space-sm);
    list-style: none;
    position: relative;
    padding-left: var(--space-xl);
}

.faq-item summary::before {
    content: '+';
    position: absolute;
    left: var(--space-sm);
    font-size: 20px;
    color: var(--color-primary);
}

.faq-item[open] summary::before {
    content: '−';
}

.faq-item p {
    margin-top: var(--space-md);
    padding: 0 var(--space-xl);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ================================
   Footer
   ================================ */

.footer {
    background: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--space-xxl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-xxl);
    margin-bottom: var(--space-xl);
}

.footer-info h3 {
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

.footer-info p {
    color: rgba(255, 255, 255, 0.8);
}

.footer-nav h4,
.footer-services h4 {
    color: var(--color-white);
    margin-bottom: var(--space-lg);
    font-size: 16px;
}

.footer-nav ul,
.footer-services ul {
    list-style: none;
}

.footer-nav li,
.footer-services li {
    margin-bottom: var(--space-sm);
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-nav a:hover {
    color: var(--color-white);
}

.footer-services li {
    color: rgba(255, 255, 255, 0.8);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

/* ================================
   Back to Top Button
   ================================ */

.back-to-top {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    box-shadow: var(--shadow-raised);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-4px);
}

/* ================================
   Utilities
   ================================ */

.text-center {
    text-align: center;
}

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

.text-gold {
    color: var(--color-gold);
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }
.mt-5 { margin-top: var(--space-xxl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }
.mb-5 { margin-bottom: var(--space-xxl); }

/* ================================
   Animations
   ================================ */

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}