/* ==========================================================================
   B.I.T. (Bristol IT Team) - Modern Professional Stylesheet
   ========================================================================== */

/* CSS Variables - Design System */
:root {
    /* Colors */
    --color-primary: #0F62FE;
    --color-primary-dark: #0043CE;
    --color-primary-light: #4589FF;
    --color-accent: #00D9A3;
    --color-accent-dark: #00A47E;

    --color-dark: #0A1628;
    --color-dark-soft: #161F33;
    --color-text: #1A2332;
    --color-text-muted: #5A6478;
    --color-text-light: #8A92A6;

    --color-bg: #FFFFFF;
    --color-bg-soft: #F7F9FC;
    --color-bg-muted: #EEF2F7;
    --color-border: #E1E7EF;

    --color-white: #FFFFFF;

    /* Typography */
    --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 8rem;

    /* Layout */
    --container-max: 1200px;
    --container-padding: 1.5rem;

    /* Effects */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px rgba(15, 22, 40, 0.05);
    --shadow-md: 0 4px 12px rgba(15, 22, 40, 0.08);
    --shadow-lg: 0 12px 40px rgba(15, 22, 40, 0.12);
    --shadow-xl: 0 24px 60px rgba(15, 22, 40, 0.18);

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Visually hidden — accessible to screen readers, hidden from sighted users (used for SEO reinforcement text) */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

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

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

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

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

ul {
    list-style: none;
}

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

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: all var(--transition);
    background: rgba(255, 255, 255, 0);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    padding: 0.75rem 0;
}

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

.nav-logo {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-weight: 700;
    transition: opacity var(--transition);
}

.nav-logo:hover {
    opacity: 0.8;
}

.logo-bits {
    font-size: 1.5rem;
    color: var(--color-dark);
    letter-spacing: -0.02em;
}

.logo-dot {
    color: var(--color-primary);
}

.logo-text {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.nav-link:hover::after {
    transform: scaleX(1);
}

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

.nav-cta {
    background: var(--color-primary);
    color: var(--color-white) !important;
    padding: 0.625rem 1.5rem !important;
    border-radius: var(--radius-full);
    transition: all var(--transition);
}

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

.nav-cta:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(15, 98, 254, 0.3);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-dark);
    transition: all var(--transition);
    border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition);
    cursor: pointer;
    white-space: nowrap;
    font-family: var(--font-body);
}

.btn svg {
    transition: transform var(--transition);
}

.btn:hover svg {
    transform: translateX(4px);
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: 0 4px 14px rgba(15, 98, 254, 0.3);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(15, 98, 254, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1.5px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}

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

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 3rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at top right, rgba(15, 98, 254, 0.08), transparent 50%),
        radial-gradient(ellipse at bottom left, rgba(0, 217, 163, 0.06), transparent 50%),
        linear-gradient(180deg, var(--color-bg-soft) 0%, var(--color-bg) 100%);
}

.hero-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--color-primary);
    top: 10%;
    right: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--color-accent);
    bottom: 20%;
    left: 5%;
    animation-delay: -7s;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background: var(--color-primary-light);
    top: 40%;
    left: 30%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-content {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(15, 98, 254, 0.08);
    border: 1px solid rgba(15, 98, 254, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 2rem;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.2); }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--color-dark);
    margin-bottom: 1.5rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.title-accent {
    color: var(--color-primary);
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 640px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 3rem;
    flex-wrap: wrap;
    padding-top: 3rem;
    border-top: 1px solid var(--color-border);
    max-width: 700px;
    margin: 0 auto;
}

.stat {
    text-align: center;
    max-width: 220px;
    flex: 0 1 220px;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    display: inline;
}

.stat-suffix {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    display: inline;
}

.stat-label-eyebrow {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark);
    line-height: 1;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.stat-label {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.hero-scroll {
    margin-top: 2.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, var(--color-text-muted), transparent);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: var(--color-primary);
    animation: scroll-down 2s ease-in-out infinite;
}

@keyframes scroll-down {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(200%); }
}

/* ==========================================================================
   Section Headers
   ========================================================================== */

section {
    padding: var(--space-3xl) 0;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--space-2xl);
}

.section-tag {
    display: inline-block;
    padding: 0.375rem 1rem;
    background: rgba(15, 98, 254, 0.08);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-dark);
    margin-bottom: 1rem;
}

.section-title.light {
    color: var(--color-white);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

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

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

.services {
    background: var(--color-bg-soft);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.service-card {
    position: relative;
    background: var(--color-white);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(15, 98, 254, 0.3);
}

.service-card.featured {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-soft) 100%);
    color: var(--color-white);
    border-color: transparent;
}

.service-card.featured h3,
.service-card.featured p,
.service-card.featured .service-list li {
    color: var(--color-white);
}

.service-card.featured .service-list li::before {
    background: var(--color-accent);
}

.service-card.featured .service-icon {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-accent);
}

.service-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: var(--color-accent);
    color: var(--color-dark);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 98, 254, 0.08);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    transition: all var(--transition);
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.service-card:hover .service-icon {
    background: var(--color-primary);
    color: var(--color-white);
    transform: scale(1.05);
}

.service-card h3 {
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.service-card p {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.service-list li {
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55rem;
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
}

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

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-visual {
    position: relative;
}

.about-image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 4/5;
}

.about-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.about-image-wrapper:hover .about-image {
    transform: scale(1.05);
}

.about-image-accent {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0.2;
}

.about-floating-card {
    position: absolute;
    bottom: 2rem;
    right: -1rem;
    background: var(--color-white);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.875rem;
    max-width: 240px;
    animation: float-card 4s ease-in-out infinite;
}

@keyframes float-card {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.floating-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 217, 163, 0.1);
    color: var(--color-accent-dark);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.floating-icon svg {
    width: 20px;
    height: 20px;
}

.floating-title {
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--color-dark);
}

.floating-text {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.about-content p {
    color: var(--color-text-muted);
    margin-bottom: 1.25rem;
    line-height: 1.7;
}

.about-features {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.about-feature {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.feature-check {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    flex-shrink: 0;
}

.feature-check svg {
    width: 16px;
    height: 16px;
}

.about-feature h4 {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--color-dark);
}

.about-feature p {
    font-size: 0.9375rem;
    margin-bottom: 0;
}

/* ==========================================================================
   Clients Section
   ========================================================================== */

.clients {
    background: var(--color-bg);
    padding: var(--space-2xl) 0;
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: stretch;
}

.client-card {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 2rem 1.5rem;
    min-height: 130px;
    transition: all var(--transition);
    overflow: hidden;
}

.client-card:hover {
    border-color: rgba(15, 98, 254, 0.3);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.client-card img {
    max-width: 75%;
    max-height: 60px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.65;
    transition: all var(--transition);
}

.client-card:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

/* ==========================================================================
   Areas We Cover Section
   ========================================================================== */

.areas {
    background: var(--color-bg);
}

.areas-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.area-card {
    display: block;
    position: relative;
    background: var(--color-bg-soft);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition);
    overflow: hidden;
    color: var(--color-text);
}

.area-card:hover {
    background: var(--color-white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: rgba(15, 98, 254, 0.3);
}

.area-card.primary {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-soft) 100%);
    color: var(--color-white);
    border-color: transparent;
}

.area-card.primary:hover {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-soft) 100%);
    box-shadow: var(--shadow-lg);
}

.area-rank {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(15, 98, 254, 0.1);
    color: var(--color-primary);
    border-radius: 50%;
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
}

.area-card.primary .area-rank {
    background: rgba(255, 255, 255, 0.12);
    color: var(--color-accent);
}

.area-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-dark);
    letter-spacing: -0.01em;
}

.area-card.primary h3 {
    color: var(--color-white);
}

.area-card p {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text-muted);
}

.area-card.primary p {
    color: rgba(255, 255, 255, 0.75);
}

/* ==========================================================================
   Process Section
   ========================================================================== */

.process {
    background: var(--color-bg-soft);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    position: relative;
}

.process-grid::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 12%;
    right: 12%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-border), var(--color-primary), var(--color-accent), var(--color-border));
    z-index: 0;
}

.process-step {
    position: relative;
    text-align: center;
    padding: 0 1rem;
    z-index: 1;
}

.process-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--color-white);
    color: var(--color-primary);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    transition: all var(--transition);
}

.process-step:hover .process-number {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(15, 98, 254, 0.3);
}

.process-step h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--color-dark);
}

.process-step p {
    color: var(--color-text-muted);
    line-height: 1.6;
    font-size: 0.9375rem;
}

/* ==========================================================================
   Testimonial
   ========================================================================== */

.testimonial {
    background: var(--color-bg);
    padding: var(--space-2xl) 0;
}

.testimonial-card {
    max-width: 800px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--color-bg-soft), var(--color-bg-muted));
    padding: 3rem;
    border-radius: var(--radius-xl);
    position: relative;
    text-align: center;
    border: 1px solid var(--color-border);
}

.quote-mark {
    font-family: var(--font-display);
    font-size: 6rem;
    line-height: 1;
    color: var(--color-primary);
    opacity: 0.2;
    position: absolute;
    top: 1rem;
    left: 2rem;
}

.testimonial-text {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--color-text);
    font-weight: 400;
    margin-bottom: 2rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.author-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-white);
    box-shadow: var(--shadow-sm);
}

.author-name {
    font-weight: 600;
    color: var(--color-dark);
    text-align: left;
}

.author-role {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-align: left;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */

.faq {
    background: var(--color-bg-soft);
}

.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.faq-item {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition);
    overflow: hidden;
}

.faq-item[open] {
    border-color: rgba(15, 98, 254, 0.3);
    box-shadow: var(--shadow-md);
}

.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    font-weight: 600;
    color: var(--color-dark);
    font-size: 1.0625rem;
    list-style: none;
    user-select: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-chevron {
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
    transition: transform var(--transition);
    flex-shrink: 0;
}

.faq-item[open] .faq-chevron {
    transform: rotate(180deg);
    color: var(--color-primary);
}

.faq-item p {
    padding: 0 1.5rem 1.5rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin: 0;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-soft) 100%);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(15, 98, 254, 0.15), transparent 70%);
    border-radius: 50%;
}

.contact::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 217, 163, 0.1), transparent 70%);
    border-radius: 50%;
}

.contact .section-tag {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-accent);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    position: relative;
    z-index: 1;
}

.contact-info {
    color: var(--color-white);
}

.contact-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.0625rem;
    line-height: 1.7;
    margin-bottom: 2.5rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-accent);
    flex-shrink: 0;
}

.contact-icon svg {
    width: 22px;
    height: 22px;
}

.contact-label {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.125rem;
}

.contact-value {
    color: var(--color-white);
    font-weight: 500;
    transition: color var(--transition);
}

a.contact-value:hover {
    color: var(--color-accent);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    color: var(--color-text);
    box-shadow: var(--shadow-xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: inherit;
    font-size: 0.9375rem;
    color: var(--color-text);
    background: var(--color-bg-soft);
    border: 1.5px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition);
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    background: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(15, 98, 254, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-light);
}

.form-message {
    margin-top: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(0, 217, 163, 0.1);
    color: var(--color-accent-dark);
    border: 1px solid rgba(0, 217, 163, 0.3);
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: #b91c1c;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

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

.footer {
    background: var(--color-dark);
    color: var(--color-white);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 1rem;
}

.footer-logo .logo-dot {
    color: var(--color-primary);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    max-width: 320px;
}

.footer-links h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    color: var(--color-white);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

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

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

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

.animate-fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

.animate-fade-up {
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }

/* Scroll reveal */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 968px) {
    section {
        padding: var(--space-2xl) 0;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 280px;
        background: var(--color-white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 1.5rem;
        padding: 2rem;
        box-shadow: var(--shadow-xl);
        transform: translateX(100%);
        transition: transform var(--transition);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-toggle {
        display: flex;
    }

    .logo-text {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: 7rem 0 3rem;
    }

    .hero-stats {
        gap: 2rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .areas-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-visual {
        order: -1;
    }

    .process-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
    }

    .process-grid::before {
        display: none;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 600px) {
    :root {
        --container-padding: 1.25rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .areas-grid {
        grid-template-columns: 1fr;
    }

    .clients-grid {
        grid-template-columns: 1fr;
    }

    .process-grid {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }

    .hero-scroll {
        display: none;
    }

    .testimonial-card {
        padding: 2rem 1.5rem;
    }

    .testimonial-text {
        font-size: 1.0625rem;
    }

    .contact-form-wrapper {
        padding: 1.5rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

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

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