/* IBM Carbon Design System Inspired Styles */

/* ==========================================
   CSS Variables - Carbon Design Tokens
   ========================================== */
:root {
    /* Carbon Colors */
    --carbon-blue-60: #0f62fe;
    --carbon-blue-70: #0043ce;
    --carbon-blue-80: #002d9c;
    --carbon-blue-40: #4589ff;
    --carbon-blue-20: #a6c8ff;
    
    --carbon-gray-100: #161616;
    --carbon-gray-90: #262626;
    --carbon-gray-80: #393939;
    --carbon-gray-70: #525252;
    --carbon-gray-60: #6f6f6f;
    --carbon-gray-50: #8d8d8d;
    --carbon-gray-40: #a8a8a8;
    --carbon-gray-30: #c6c6c6;
    --carbon-gray-20: #e0e0e0;
    --carbon-gray-10: #f4f4f4;
    
    --carbon-white: #ffffff;
    --carbon-black: #000000;
    
    --carbon-green-40: #42be65;
    --carbon-purple-60: #8a3ffc;
    --carbon-teal-50: #009d9a;
    --carbon-red-50: #fa4d56;
    
    /* Logo Colors */
    --logo-blue: #1a5fb4;
    --logo-gray: #7a8a9a;
    
    /* Typography */
    --font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing Scale (8px base) */
    --spacing-01: 0.125rem;
    --spacing-02: 0.25rem;
    --spacing-03: 0.5rem;
    --spacing-04: 0.75rem;
    --spacing-05: 1rem;
    --spacing-06: 1.5rem;
    --spacing-07: 2rem;
    --spacing-08: 2.5rem;
    --spacing-09: 3rem;
    --spacing-10: 4rem;
    --spacing-11: 5rem;
    --spacing-12: 6rem;
    
    /* Transitions */
    --transition-fast: 110ms;
    --transition-moderate: 150ms;
    --transition-slow: 240ms;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.15);
}

/* ==========================================
   Reset & Base Styles
   ========================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--carbon-gray-100);
    background-color: var(--carbon-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--carbon-blue-60);
    text-decoration: none;
    transition: color var(--transition-fast) ease;
}

a:hover {
    color: var(--carbon-blue-80);
}

ul {
    list-style: none;
}

/* ==========================================
   Logo Text Styles
   ========================================== */
.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo-text--blue {
    color: var(--logo-blue);
}

.logo-text--gray {
    color: var(--logo-gray);
}

.logo-text--gray-light {
    color: #9aa8b8;
}

/* ==========================================
   Container
   ========================================== */
.container {
    width: 100%;
    max-width: 1584px;
    margin: 0 auto;
    padding: 0 var(--spacing-05);
}

@media (min-width: 672px) {
    .container {
        padding: 0 var(--spacing-07);
    }
}

@media (min-width: 1056px) {
    .container {
        padding: 0 var(--spacing-09);
    }
}

/* ==========================================
   Typography
   ========================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    color: var(--carbon-gray-100);
}

h1 {
    font-size: 2.625rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

@media (min-width: 672px) {
    h1 {
        font-size: 3.375rem;
    }
    
    h2 {
        font-size: 2.625rem;
    }
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-03);
    padding: calc(var(--spacing-04) - 1px) calc(var(--spacing-05) + var(--spacing-09) - 1px) calc(var(--spacing-04) - 1px) calc(var(--spacing-05) - 1px);
    font-family: var(--font-family);
    font-size: 0.875rem;
    font-weight: 400;
    line-height: 1.125rem;
    letter-spacing: 0.16px;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast) ease;
    min-height: 3rem;
}

.btn--primary {
    background-color: var(--carbon-blue-60);
    color: var(--carbon-white);
}

.btn--primary:hover {
    background-color: var(--carbon-blue-70);
    color: var(--carbon-white);
}

.btn--primary:active {
    background-color: var(--carbon-blue-80);
}

.btn--secondary {
    background-color: var(--carbon-gray-80);
    color: var(--carbon-white);
}

.btn--secondary:hover {
    background-color: var(--carbon-gray-70);
    color: var(--carbon-white);
}

.btn--tertiary {
    background-color: transparent;
    color: var(--carbon-blue-60);
    border: 1px solid var(--carbon-blue-60);
}

.btn--tertiary:hover {
    background-color: var(--carbon-blue-60);
    color: var(--carbon-white);
}

.btn--lg {
    padding: calc(var(--spacing-05) - 1px) calc(var(--spacing-10) - 1px) calc(var(--spacing-05) - 1px) calc(var(--spacing-05) - 1px);
    min-height: 3rem;
}

.btn--full {
    width: 100%;
}

/* ==========================================
   Header
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: var(--carbon-gray-100);
    height: 3rem;
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1584px;
    margin: 0 auto;
    padding: 0 var(--spacing-05);
}

.header__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-03);
    text-decoration: none;
}

.header__logo .logo-text {
    font-size: 1.125rem;
}

.header__logo .logo-text--blue {
    color: #4589ff;
}

.header__logo .logo-text--gray {
    color: #8d9baa;
}

.header__nav {
    display: none;
}

.header__nav-list {
    display: flex;
    align-items: center;
    gap: 0;
}

.header__nav-link {
    display: flex;
    align-items: center;
    height: 3rem;
    padding: 0 var(--spacing-05);
    color: var(--carbon-gray-30);
    font-size: 0.875rem;
    text-decoration: none;
    transition: all var(--transition-fast) ease;
}

.header__nav-link:hover {
    background-color: var(--carbon-gray-80);
    color: var(--carbon-white);
}

.header__nav-link.active {
    color: var(--carbon-white);
    border-bottom: 2px solid var(--carbon-blue-60);
}

.header__cta {
    display: none;
    padding: calc(var(--spacing-03) - 1px) var(--spacing-05);
    min-height: 2rem;
    font-size: 0.875rem;
}

.header__menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 3rem;
    height: 3rem;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-04);
}

.header__menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--carbon-white);
    transition: all var(--transition-fast) ease;
}

.header__menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.header__menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.header__menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

@media (min-width: 1056px) {
    .header__nav {
        display: block;
        margin-left: auto;
    }
    
    .header__cta {
        display: inline-flex;
        margin-left: var(--spacing-05);
    }
    
    .header__menu-toggle {
        display: none;
    }
}

/* Mobile Navigation */
.header__nav.active {
    display: block;
    position: absolute;
    top: 3rem;
    left: 0;
    right: 0;
    background-color: var(--carbon-gray-90);
}

.header__nav.active .header__nav-list {
    flex-direction: column;
    align-items: stretch;
}

.header__nav.active .header__nav-link {
    border-bottom: 1px solid var(--carbon-gray-80);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    padding-top: calc(3rem + var(--spacing-12));
    padding-bottom: var(--spacing-10);
    background-color: var(--carbon-gray-100);
    color: var(--carbon-white);
}

.hero__container {
    max-width: 1584px;
    margin: 0 auto;
    padding: 0 var(--spacing-05);
    display: grid;
    gap: var(--spacing-09);
}

.hero__eyebrow {
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.32px;
    color: var(--carbon-blue-40);
    margin-bottom: var(--spacing-05);
    text-transform: uppercase;
}

.hero__title {
    font-size: 2.625rem;
    font-weight: 300;
    line-height: 1.2;
    color: var(--carbon-white);
    margin-bottom: var(--spacing-06);
    max-width: 700px;
}

.hero__description {
    font-size: 1.25rem;
    font-weight: 300;
    line-height: 1.5;
    color: var(--carbon-gray-30);
    margin-bottom: var(--spacing-07);
    max-width: 600px;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-05);
}

.hero__actions .btn--tertiary {
    border-color: var(--carbon-white);
    color: var(--carbon-white);
}

.hero__actions .btn--tertiary:hover {
    background-color: var(--carbon-white);
    color: var(--carbon-gray-100);
}

.hero__visual {
    display: none;
}

.hero__graphic {
    position: relative;
}

.hero__code-block {
    background-color: var(--carbon-gray-90);
    border-radius: 0;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.hero__code-header {
    display: flex;
    gap: var(--spacing-02);
    padding: var(--spacing-04);
    background-color: var(--carbon-gray-80);
}

.hero__code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--carbon-gray-60);
}

.hero__code-content {
    padding: var(--spacing-05);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--carbon-gray-30);
    overflow-x: auto;
}

.hero__code-content code {
    font-family: inherit;
}

.code-tag {
    color: var(--carbon-blue-40);
}

.code-comment {
    color: var(--carbon-gray-50);
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-05);
    max-width: 1584px;
    margin: var(--spacing-10) auto 0;
    padding: 0 var(--spacing-05);
}

.hero__stat {
    padding: var(--spacing-06);
    background-color: var(--carbon-gray-90);
    border-left: 3px solid var(--carbon-blue-60);
}

.hero__stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 600;
    color: var(--carbon-blue-40);
    margin-bottom: var(--spacing-02);
}

.hero__stat-label {
    font-size: 0.875rem;
    color: var(--carbon-gray-40);
}

@media (min-width: 672px) {
    .hero__container {
        padding: 0 var(--spacing-07);
    }
    
    .hero__title {
        font-size: 3.375rem;
    }
    
    .hero__stats {
        grid-template-columns: repeat(4, 1fr);
        padding: 0 var(--spacing-07);
    }
}

@media (min-width: 1056px) {
    .hero__container {
        grid-template-columns: 1fr 1fr;
        align-items: center;
        padding: 0 var(--spacing-09);
    }
    
    .hero__visual {
        display: block;
    }
    
    .hero__stats {
        padding: 0 var(--spacing-09);
    }
}

/* ==========================================
   Section Header
   ========================================== */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-10);
}

.section-header__eyebrow {
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.32px;
    color: var(--carbon-blue-60);
    margin-bottom: var(--spacing-04);
    text-transform: uppercase;
}

.section-header__title {
    margin-bottom: var(--spacing-05);
}

.section-header__description {
    font-size: 1.125rem;
    color: var(--carbon-gray-70);
    line-height: 1.6;
}

/* ==========================================
   Services Section
   ========================================== */
.services {
    padding: var(--spacing-12) 0;
    background-color: var(--carbon-gray-10);
}

.services__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-06);
}

.service-card {
    background-color: var(--carbon-white);
    padding: var(--spacing-07);
    transition: all var(--transition-moderate) ease;
    box-shadow: var(--shadow-sm);
}

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

.service-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--carbon-blue-60);
    color: var(--carbon-white);
    margin-bottom: var(--spacing-06);
}

.service-card__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-04);
    color: var(--carbon-gray-100);
}

.service-card__description {
    color: var(--carbon-gray-70);
    margin-bottom: var(--spacing-05);
    line-height: 1.6;
}

.service-card__features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-03);
}

.service-card__features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-03);
    font-size: 0.875rem;
    color: var(--carbon-gray-70);
}

.service-card__features li::before {
    content: '';
    width: 4px;
    height: 4px;
    background-color: var(--carbon-blue-60);
    flex-shrink: 0;
}

@media (min-width: 672px) {
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1056px) {
    .services__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================
   About Section
   ========================================== */
.about {
    padding: var(--spacing-12) 0;
}

.about__grid {
    display: grid;
    gap: var(--spacing-09);
    align-items: center;
}

.about__title {
    margin-bottom: var(--spacing-06);
}

.about__description {
    color: var(--carbon-gray-70);
    margin-bottom: var(--spacing-05);
    line-height: 1.7;
}

.about__values {
    display: grid;
    gap: var(--spacing-06);
    margin-top: var(--spacing-08);
}

.about__value {
    padding-left: var(--spacing-05);
    border-left: 3px solid var(--carbon-blue-60);
}

.about__value-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-02);
    color: var(--carbon-gray-100);
}

.about__value-text {
    font-size: 0.875rem;
    color: var(--carbon-gray-70);
}

.about__visual {
    display: none;
}

.about__image-container {
    position: relative;
    min-height: 400px;
}

.about__pattern {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--carbon-blue-60) 0%, var(--carbon-blue-80) 100%);
    opacity: 0.1;
}

.about__card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--spacing-04);
    padding: var(--spacing-05) var(--spacing-06);
    background-color: var(--carbon-white);
    box-shadow: var(--shadow-lg);
    font-weight: 500;
    color: var(--carbon-gray-100);
}

.about__card-icon {
    font-size: 1.5rem;
}

.about__card--1 {
    top: 10%;
    right: 10%;
}

.about__card--2 {
    top: 45%;
    left: 5%;
}

.about__card--3 {
    bottom: 15%;
    right: 15%;
}

@media (min-width: 1056px) {
    .about__grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .about__visual {
        display: block;
    }
    
    .about__values {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================
   Work Section
   ========================================== */
.work {
    padding: var(--spacing-12) 0;
    background-color: var(--carbon-gray-10);
}

.work__loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-10);
    color: var(--carbon-gray-60);
    font-size: 1rem;
}

.work__error {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-10);
    background-color: var(--carbon-white);
    color: var(--carbon-red-50);
}

.work__filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-03);
    margin-bottom: var(--spacing-07);
    justify-content: center;
}

.work__filter-btn {
    padding: var(--spacing-03) var(--spacing-05);
    background-color: var(--carbon-white);
    border: 1px solid var(--carbon-gray-30);
    color: var(--carbon-gray-70);
    font-family: var(--font-family);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast) ease;
}

.work__filter-btn:hover {
    background-color: var(--carbon-gray-20);
    border-color: var(--carbon-gray-50);
}

.work__filter-btn.active {
    background-color: var(--carbon-blue-60);
    border-color: var(--carbon-blue-60);
    color: var(--carbon-white);
}

.work__filter-btn:focus {
    outline: 2px solid var(--carbon-blue-60);
    outline-offset: 2px;
}

.work__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-06);
}

.work-card {
    background-color: var(--carbon-white);
    overflow: hidden;
    transition: transform var(--transition-moderate) ease, box-shadow var(--transition-moderate) ease;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
}

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

.work-card__image {
    position: relative;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.work-card__overlay {
    position: absolute;
    top: var(--spacing-05);
    left: var(--spacing-05);
}

.work-card__category {
    display: inline-block;
    padding: var(--spacing-02) var(--spacing-04);
    background-color: rgba(255, 255, 255, 0.9);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.32px;
    color: var(--carbon-gray-100);
}

.work-card__content {
    padding: var(--spacing-06);
}

.work-card__title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-03);
    color: var(--carbon-gray-100);
}

.work-card__description {
    font-size: 0.875rem;
    color: var(--carbon-gray-70);
    margin-bottom: var(--spacing-05);
    line-height: 1.6;
}

.work-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-02);
}

.tag {
    display: inline-block;
    padding: var(--spacing-01) var(--spacing-03);
    background-color: var(--carbon-gray-20);
    font-size: 0.75rem;
    color: var(--carbon-gray-70);
}

.work-card__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--spacing-04);
    padding-top: var(--spacing-04);
    border-top: 1px solid var(--carbon-gray-20);
}

.work-card__year {
    font-size: 0.75rem;
    color: var(--carbon-gray-60);
    font-weight: 500;
}

.work-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-02);
    font-size: 0.875rem;
    color: var(--carbon-blue-60);
    font-weight: 500;
    transition: color var(--transition-fast) ease;
}

.work-card__link:hover {
    color: var(--carbon-blue-80);
}

.work-card__link svg {
    width: 16px;
    height: 16px;
}

@media (min-width: 672px) {
    .work__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .work-card--featured {
        grid-column: 1 / -1;
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
    
    .work-card--featured .work-card__image {
        height: 100%;
        min-height: 280px;
    }
    
    .work-card--featured .work-card__content {
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding: var(--spacing-07);
    }
    
    .work-card--featured .work-card__title {
        font-size: 1.5rem;
    }
    
    .work-card--featured .work-card__description {
        font-size: 1rem;
    }
}

@media (min-width: 1056px) {
    .work__grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .work-card--featured {
        grid-column: span 2;
        grid-template-columns: 1fr 1fr;
    }
    
    .work-card--featured .work-card__image {
        min-height: 320px;
    }
}

@media (min-width: 1312px) {
    .work__grid {
        gap: var(--spacing-07);
    }
    
    .work-card__image {
        height: 220px;
    }
    
    .work-card--featured .work-card__image {
        min-height: 360px;
    }
}

/* ==========================================
   Testimonials Section
   ========================================== */
.testimonials {
    padding: var(--spacing-12) 0;
}

.testimonials__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-06);
}

.testimonial-card {
    padding: var(--spacing-07);
    background-color: var(--carbon-gray-10);
    border-left: 4px solid var(--carbon-blue-60);
}

.testimonial-card__rating {
    color: var(--carbon-blue-60);
    font-size: 1rem;
    margin-bottom: var(--spacing-05);
    letter-spacing: 2px;
}

.testimonial-card__quote {
    font-size: 1.125rem;
    font-style: italic;
    line-height: 1.7;
    color: var(--carbon-gray-80);
    margin-bottom: var(--spacing-06);
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: var(--spacing-04);
}

.testimonial-card__avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--carbon-blue-60);
    color: var(--carbon-white);
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 50%;
    flex-shrink: 0;
}

.testimonial-card__info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-01);
}

.testimonial-card__info strong {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--carbon-gray-100);
}

.testimonial-card__info span {
    font-size: 0.75rem;
    color: var(--carbon-gray-60);
}

@media (min-width: 672px) {
    .testimonials__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1056px) {
    .testimonials__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================
   CTA Section
   ========================================== */
.cta {
    padding: var(--spacing-12) 0;
    background-color: var(--carbon-blue-60);
    color: var(--carbon-white);
}

.cta__content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta__title {
    font-size: 2.625rem;
    font-weight: 300;
    color: var(--carbon-white);
    margin-bottom: var(--spacing-05);
}

.cta__description {
    font-size: 1.25rem;
    color: var(--carbon-blue-20);
    margin-bottom: var(--spacing-07);
    line-height: 1.6;
}

.cta .btn--primary {
    background-color: var(--carbon-white);
    color: var(--carbon-blue-60);
}

.cta .btn--primary:hover {
    background-color: var(--carbon-gray-10);
}

/* ==========================================
   Contact Section
   ========================================== */
.contact {
    padding: var(--spacing-12) 0;
    background-color: var(--carbon-gray-10);
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-09);
}

.contact__title {
    margin-bottom: var(--spacing-05);
}

.contact__description {
    color: var(--carbon-gray-70);
    margin-bottom: var(--spacing-07);
    line-height: 1.6;
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-06);
}

.contact__detail {
    display: flex;
    gap: var(--spacing-05);
    color: var(--carbon-gray-70);
}

.contact__detail svg {
    flex-shrink: 0;
    color: var(--carbon-blue-60);
}

.contact__detail strong {
    display: block;
    font-weight: 600;
    color: var(--carbon-gray-100);
    margin-bottom: var(--spacing-02);
}

.contact__detail p {
    font-size: 0.875rem;
    line-height: 1.6;
}

.contact__detail a {
    color: var(--carbon-blue-60);
    text-decoration: none;
    transition: color var(--transition-fast) ease;
}

.contact__detail a:hover {
    color: var(--carbon-blue-80);
    text-decoration: underline;
}

@media (min-width: 1056px) {
    .contact__grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ==========================================
   FAQ Accordion
   ========================================== */
.faq {
    background-color: var(--carbon-white);
    padding: var(--spacing-07);
    box-shadow: var(--shadow-sm);
}

.faq__title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--carbon-gray-100);
    margin-bottom: var(--spacing-06);
    padding-bottom: var(--spacing-05);
    border-bottom: 1px solid var(--carbon-gray-20);
}

.faq__list {
    display: flex;
    flex-direction: column;
}

.faq__item {
    border-bottom: 1px solid var(--carbon-gray-20);
}

.faq__item:last-child {
    border-bottom: none;
}

.faq__question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--spacing-05) 0;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-family);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--carbon-gray-100);
    transition: color var(--transition-fast) ease;
}

.faq__question:hover {
    color: var(--carbon-blue-60);
}

.faq__question span {
    flex: 1;
    padding-right: var(--spacing-04);
}

.faq__icon {
    flex-shrink: 0;
    color: var(--carbon-gray-60);
    transition: transform var(--transition-moderate) ease;
}

.faq__question[aria-expanded="true"] .faq__icon {
    transform: rotate(180deg);
}

.faq__question[aria-expanded="true"] {
    color: var(--carbon-blue-60);
}

.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow) ease, padding var(--transition-slow) ease;
}

.faq__answer.open {
    max-height: 500px;
    padding-bottom: var(--spacing-05);
}

.faq__answer p {
    font-size: 0.875rem;
    color: var(--carbon-gray-70);
    line-height: 1.7;
    padding-right: var(--spacing-07);
}

/* Focus states for accessibility */
.faq__question:focus {
    outline: 2px solid var(--carbon-blue-60);
    outline-offset: 2px;
}

.faq__question:focus:not(:focus-visible) {
    outline: none;
}

.faq__question:focus-visible {
    outline: 2px solid var(--carbon-blue-60);
    outline-offset: 2px;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    padding: var(--spacing-10) 0 var(--spacing-07);
    background-color: var(--carbon-gray-100);
    color: var(--carbon-gray-30);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-08);
    margin-bottom: var(--spacing-09);
}

.footer__brand {
    max-width: 300px;
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-03);
    text-decoration: none;
    margin-bottom: var(--spacing-05);
}

.footer__logo:hover {
    text-decoration: none;
}

.footer__logo .logo-text {
    font-size: 1.25rem;
}

.footer__logo .logo-text--blue {
    color: #4589ff;
}

.footer__logo .logo-text--gray-light {
    color: #9aa8b8;
}

.footer__tagline {
    font-size: 0.875rem;
    color: var(--carbon-gray-40);
    line-height: 1.6;
    margin-bottom: var(--spacing-05);
}

.footer__contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-03);
}

.footer__contact-info p {
    font-size: 0.875rem;
    color: var(--carbon-gray-40);
    margin: 0;
}

.footer__contact-info a {
    color: var(--carbon-gray-40);
    text-decoration: none;
    transition: color var(--transition-fast) ease;
}

.footer__contact-info a:hover {
    color: var(--carbon-white);
}

.footer__heading {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--carbon-white);
    margin-bottom: var(--spacing-05);
}

.footer__links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-04);
}

.footer__links a {
    font-size: 0.875rem;
    color: var(--carbon-gray-40);
    text-decoration: none;
    transition: color var(--transition-fast) ease;
}

.footer__links a:hover {
    color: var(--carbon-white);
}

.footer__bottom {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-05);
    padding-top: var(--spacing-07);
    border-top: 1px solid var(--carbon-gray-80);
}

.footer__bottom p {
    font-size: 0.75rem;
    color: var(--carbon-gray-50);
}

.footer__social {
    display: flex;
    gap: var(--spacing-05);
}

.footer__social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--carbon-gray-40);
    transition: color var(--transition-fast) ease;
}

.footer__social a:hover {
    color: var(--carbon-white);
}

@media (min-width: 672px) {
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer__bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

@media (min-width: 1056px) {
    .footer__grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

/* ==========================================
   Utility Classes
   ========================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

.mb-0 {
    margin-bottom: 0;
}

.mt-auto {
    margin-top: auto;
}

/* ==========================================
   Animations
   ========================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-fade-in {
    animation: fadeIn 0.4s ease forwards;
}

.animate-delay-1 {
    animation-delay: 0.1s;
}

.animate-delay-2 {
    animation-delay: 0.2s;
}

.animate-delay-3 {
    animation-delay: 0.3s;
}

.animate-delay-4 {
    animation-delay: 0.4s;
}

.animate-delay-5 {
    animation-delay: 0.5s;
}

/* ==========================================
   Focus States for Accessibility
   ========================================== */
.btn:focus,
a:focus {
    outline: 2px solid var(--carbon-blue-60);
    outline-offset: 2px;
}

.header__nav-link:focus,
.header__logo:focus,
.footer__logo:focus,
.footer__links a:focus,
.footer__social a:focus {
    outline: 2px solid var(--carbon-blue-40);
    outline-offset: 2px;
}

/* ==========================================
   Print Styles
   ========================================== */
@media print {
    .header,
    .footer,
    .cta,
    .hero__actions,
    .faq {
        display: none;
    }
    
    .hero {
        padding-top: var(--spacing-07);
        background-color: var(--carbon-white);
        color: var(--carbon-gray-100);
    }
    
    .hero__title,
    .hero__description {
        color: var(--carbon-gray-100);
    }
    
    body {
        font-size: 12pt;
    }
    
    a {
        text-decoration: underline;
    }
}