/* =====================================================================
   Siliconsphere — design system inspired by senacor.com
   Charcoal canvas · steel-blue accent · Barlow type · square corners
   ===================================================================== */

/* ===================================
   Design Tokens
   =================================== */
:root {
    /* Brand */
    --accent: #7da0d7;
    --accent-hover: #688ec8;
    --accent-deep: #3a4d77;
    --navy: #0b224f;
    --danger: #ff4343;
    --success: #66cc33;

    /* Light theme surfaces (secondary theme) */
    --bg-primary: #f3f3f3;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e6e6e6;
    --surface: #ffffff;
    --surface-hover: #f7f7f7;
    --text-primary: #373737;
    --text-secondary: #555555;
    --text-tertiary: #7a7a7a;
    --border-color: rgba(55, 55, 55, 0.16);
    --border-strong: rgba(55, 55, 55, 0.4);
    --accent-text: #3a4d77;
    --dots-color: #000;
    --dots-opacity: 0.05;

    /* Typography */
    --font-body: 'Barlow', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Barlow Semi Condensed', 'Barlow', sans-serif;
    --tracking-ui: 0.15em;
    --tracking-wide: 0.2em;

    /* Layout */
    --container: 1280px;
    --main-padding: clamp(20px, 4vw, 60px);
    --header-height: 84px;

    /* Motion */
    --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
    --transition: all 0.35s var(--ease);
    --border-radius: 0;

    /* Shadows (used sparingly, Senacor is flat) */
    --shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 20px 40px -20px rgba(0, 0, 0, 0.35);

    /* Backward compatibility aliases (used by careers.html inline styles) */
    --primary-blue: var(--accent);
    --primary-cyan: var(--accent);
    --accent-blue: var(--accent);
    --dark-blue: var(--accent-deep);
    --darker-blue: #2b2b2b;
    --light-gray: var(--bg-secondary);
    --medium-gray: var(--border-color);
    --dark-gray: var(--text-tertiary);
    --text-dark: var(--text-primary);
    --white: #ffffff;
}

/* Dark theme — the primary Senacor look */
[data-theme="dark"] {
    --bg-primary: #373737;
    --bg-secondary: #303030;
    --bg-tertiary: #404040;
    --surface: #3f3f3f;
    --surface-hover: #464646;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.78);
    --text-tertiary: rgba(255, 255, 255, 0.55);
    --border-color: rgba(255, 255, 255, 0.16);
    --border-strong: rgba(255, 255, 255, 0.5);
    --accent-text: #7da0d7;
    --dots-color: #000;
    --dots-opacity: 0.12;
    --shadow-lg: 0 24px 48px -24px rgba(0, 0, 0, 0.6);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 16px;
    line-height: 1.65;
    letter-spacing: 0.02em;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.35s ease, color 0.35s ease;
}

/* Fixed dotted texture, as on senacor.com */
.background-dots {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-image: radial-gradient(var(--dots-color) 1.25px, transparent 1.4px);
    background-size: 11px 11px;
    opacity: var(--dots-opacity);
}

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

h1, h2, h3, h4 {
    font-family: var(--font-display);
    line-height: 1.15;
    letter-spacing: 0.01em;
}

::selection {
    background: var(--accent);
    color: #373737;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

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

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

/* ===================================
   Navigation Bar
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.45) 0%, rgba(0, 0, 0, 0) 100%);
    transition: background 0.4s ease, box-shadow 0.4s ease, height 0.3s ease;
}

.navbar.scrolled {
    background: rgba(55, 55, 55, 0.97);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
}

[data-theme="light"] .navbar.scrolled {
    background: rgba(243, 243, 243, 0.97);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08);
}

.nav-container {
    max-width: 2500px;
    margin: 0 auto;
    height: var(--header-height);
    padding: 0 var(--main-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.navbar.scrolled .nav-container {
    height: 68px;
}

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

.logo-image {
    height: 34px;
    width: auto;
    filter: brightness(0) invert(1);
    transition: filter 0.4s ease, opacity 0.3s ease;
}

.logo-image:hover {
    opacity: 0.85;
}

[data-theme="light"] .navbar.scrolled .logo-image {
    filter: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.25rem;
    align-items: center;
    margin-left: auto;
    counter-reset: navitem;
}

.nav-item {
    counter-increment: navitem;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6em;
    padding: 6px 12px;
    color: #ffffff;
    text-decoration: none;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 13px;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    border: 2px solid transparent;
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.nav-link::before {
    content: counter(navitem, decimal-leading-zero);
    font-weight: 400;
    opacity: 0.7;
}

[data-theme="light"] .navbar.scrolled .nav-link {
    color: var(--text-primary);
}

.nav-link:hover,
.nav-link.active,
[data-theme="light"] .navbar.scrolled .nav-link:hover,
[data-theme="light"] .navbar.scrolled .nav-link.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #373737;
    font-weight: 800;
}

.nav-link:hover::before,
.nav-link.active::before {
    opacity: 1;
}

/* Dropdown Menu */
.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 260px;
    margin-top: 14px;
    padding: 0;
    list-style: none;
    background: #373737;
    border-top: 2px solid var(--accent);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
}

.dropdown-menu::before {
    /* hover bridge */
    content: '';
    position: absolute;
    top: -16px;
    left: 0;
    right: 0;
    height: 16px;
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    color: #ffffff;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: var(--tracking-ui);
    text-transform: uppercase;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: background 0.25s ease, color 0.25s ease, padding 0.25s ease;
    white-space: nowrap;
}

.dropdown-menu a::after {
    content: '›';
    font-size: 18px;
    line-height: 1;
    opacity: 0;
    transform: translateX(-6px);
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background: var(--accent);
    color: #373737;
    padding-left: 26px;
}

.dropdown-menu a:hover::after {
    opacity: 1;
    transform: translateX(0);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 44px;
    height: 32px;
    cursor: pointer;
}

.hamburger .bar {
    width: 100%;
    height: 3px;
    background: #ffffff;
    transition: var(--transition);
}

[data-theme="light"] .navbar.scrolled .hamburger .bar {
    background: var(--text-primary);
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    cursor: pointer;
    border: 2px solid rgba(255, 255, 255, 0.6);
    color: #ffffff;
    transition: var(--transition);
}

.theme-toggle:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #373737;
}

[data-theme="light"] .navbar.scrolled .theme-toggle {
    color: var(--text-primary);
    border-color: var(--border-strong);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
    color: currentColor;
}

.theme-toggle .sun-icon { display: none; }
.theme-toggle .moon-icon { display: block; }
[data-theme="dark"] .theme-toggle .sun-icon { display: block; }
[data-theme="dark"] .theme-toggle .moon-icon { display: none; }

/* ===================================
   Buttons (square, uppercase, tracked)
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: var(--tracking-ui);
    text-transform: uppercase;
    text-decoration: none;
    text-align: center;
    border: 2px solid transparent;
    border-radius: 0;
    cursor: pointer;
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.btn .arrow-end {
    display: inline-flex;
    transition: transform 0.3s var(--ease);
}

.btn .arrow-end svg {
    width: 7px;
    height: auto;
}

.btn:hover .arrow-end {
    transform: translateX(4px);
}

.btn-primary {
    background: var(--accent);
    color: #373737;
    border-color: var(--accent);
}

.btn-primary:hover {
    background: #ffffff;
    border-color: #ffffff;
    color: #373737;
}

[data-theme="light"] .btn-primary:hover {
    background: #373737;
    border-color: #373737;
    color: #ffffff;
}

.btn-secondary {
    background: transparent;
    color: #ffffff;
    border-color: #ffffff;
}

.btn-secondary:hover {
    background: #ffffff;
    color: #373737;
}

.btn-sm {
    padding: 9px 14px;
    font-size: 12px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: wait;
}

/* ===================================
   Hero — full-bleed image slider
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh;
    padding: 0;
    overflow: hidden;
    background: #1f1f1f;
    color: #ffffff;
    isolation: isolate;
}

.hero-slides {
    position: absolute;
    inset: 0;
}

.hero-slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--header-height) + 40px) var(--main-padding) 220px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1.2s ease, visibility 1.2s;
}

.hero-slide.active {
    opacity: 1;
    visibility: visible;
}

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

.hero-slide-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.72) saturate(0.85);
    transform: scale(1.08);
    transition: transform 8s linear;
}

.hero-slide.active .hero-slide-bg img {
    transform: scale(1);
}

.hero-slide-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.35) 0%, rgba(0, 0, 0, 0) 35%, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0.65) 100%);
}

.hero-slide-content {
    max-width: 1000px;
    text-align: center;
}

/* Text set on translucent black strips, the Senacor signature */
.hero-title,
.hero-slide-text {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(1.75rem, 3.6vw, 2.9rem);
    line-height: 1.55;
    letter-spacing: 0;
    color: #ffffff;
    margin-bottom: 0;
}

.hero-title span,
.hero-slide-text span {
    background-color: rgba(0, 0, 0, 0.55);
    padding: 0.04em 0.22em;
    -webkit-box-decoration-break: clone;
    box-decoration-break: clone;
}

.hero-title strong,
.hero-slide-text strong {
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.hero-slide .hero-title span,
.hero-slide .hero-slide-text span,
.hero-slide .hero-cta {
    display: inline;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.hero-slide .hero-cta {
    display: flex;
    transform: translateY(16px);
    transition: opacity 0.8s ease 0.6s, transform 0.8s var(--ease) 0.6s;
}

.hero-slide.active .hero-title span,
.hero-slide.active .hero-slide-text span {
    opacity: 1;
}

.hero-slide.active .hero-title span:nth-of-type(2),
.hero-slide.active .hero-slide-text span:nth-of-type(2) {
    transition-delay: 0.25s;
}

.hero-slide.active .hero-cta {
    opacity: 1;
    transform: translateY(0);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
}

.hero-cta {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 28px;
}

/* Slider navigation: dots on a line with a moving pointer */
.hero-navigation {
    position: absolute;
    left: 50%;
    bottom: 150px;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 6px;
    height: 28px;
    padding: 0 6px;
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 14px;
}

.hero-nav-arrow {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: #ffffff;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    transition: color 0.3s ease;
}

.hero-nav-arrow:hover {
    color: var(--accent);
}

.hero-dots {
    display: flex;
    align-items: center;
    gap: 22px;
    padding: 0 10px;
    background: linear-gradient(180deg, transparent calc(50% - 0.5px), rgba(255, 255, 255, 0.8) 50%, transparent calc(50% + 0.5px));
}

.hero-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: none;
    background: #ffffff;
    cursor: pointer;
    transition: transform 0.3s ease, background 0.3s ease;
}

.hero-dot.active {
    background: var(--accent);
    transform: scale(1.5);
}

.hero-dot:hover {
    transform: scale(1.3);
}

/* Trust indicators — a thin-ruled stat bar at the bottom of the hero */
.trust-indicators {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--main-padding) 36px;
}

.trust-item {
    padding: 18px 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.55);
    text-align: left;
}

.trust-item + .trust-item {
    padding-left: 24px;
}

.trust-item h3 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 3.4vw, 2.8rem);
    font-weight: 700;
    line-height: 1;
    color: var(--accent);
    margin-bottom: 6px;
}

.trust-item p {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
}

/* ===================================
   Sections & Headers
   =================================== */
section {
    padding: clamp(72px, 9vw, 120px) 0;
    position: relative;
}

.section-header {
    max-width: 820px;
    margin-bottom: clamp(40px, 5vw, 64px);
    text-align: left;
}

.section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--accent-text);
}

.section-eyebrow::after {
    content: '';
    width: 48px;
    height: 1px;
    background: currentColor;
}

.section-header h2 {
    font-size: clamp(2rem, 4.2vw, 3.4rem);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--text-secondary);
    max-width: 640px;
}

/* ===================================
   Highlights Tile Grid (senacor "grid")
   =================================== */
.grid-section {
    padding: 0;
    background: var(--bg-primary);
}

.grid-wrapper {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: clamp(260px, 28vw, 380px);
    gap: 0;
}

.grid-tile {
    position: relative;
    overflow: hidden;
    display: block;
    color: #ffffff;
    text-decoration: none;
    isolation: isolate;
}

.grid-tile-tall { grid-row: span 2; }
.grid-tile-horizontal { grid-column: span 2; }

.grid-background-image {
    position: absolute;
    inset: 0;
    z-index: -1;
    filter: brightness(0.62);
    transition: filter 0.35s ease;
}

.grid-background-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s var(--ease);
}

.grid-tile:hover .grid-background-image {
    filter: brightness(0.5);
}

.grid-tile:hover .grid-background-image img {
    transform: scale(1.06);
}

.grid-background-color {
    position: absolute;
    inset: 0;
    z-index: -1;
    background: var(--accent);
    transition: filter 0.35s ease;
}

.grid-tile:hover .grid-background-color {
    filter: brightness(0.88);
}

.grid-tile-color {
    color: #373737;
}

.grid-tile-navy .grid-background-color {
    background: var(--accent-deep);
}

.grid-tile-navy {
    color: #ffffff;
}

.grid-tile-content {
    position: absolute;
    inset: 0;
    padding: clamp(24px, 3vw, 40px);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    gap: 18px;
    text-align: center;
}

.grid-tile-content.align-center {
    justify-content: center;
}

.grid-tile-icon svg {
    width: 56px;
    height: 56px;
    stroke: currentColor;
}

.grid-tile-text {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.35rem, 2vw, 1.9rem);
    line-height: 1.2;
    letter-spacing: 0.01em;
    max-width: 22ch;
}

.grid-tile-color .btn-primary,
.grid-tile-color .btn-primary:hover {
    background: #373737;
    border-color: #373737;
    color: #ffffff;
}

.grid-tile-color:hover .btn-primary {
    background: #ffffff;
    border-color: #ffffff;
    color: #373737;
}

.grid-tile:hover .btn-primary:not(.grid-tile-color .btn-primary) {
    background: #ffffff;
    border-color: #ffffff;
}

.grid-tile:hover .arrow-end {
    transform: translateX(4px);
}

/* ===================================
   Services Section
   =================================== */
.services {
    background: var(--bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--border-color);
    border-left: 1px solid var(--border-color);
    counter-reset: service;
}

.service-card {
    position: relative;
    padding: clamp(28px, 3vw, 44px);
    background: transparent;
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    border-radius: 0;
    cursor: pointer;
    counter-increment: service;
    transition: background 0.35s ease, color 0.35s ease, transform 0.35s ease;
}

.service-card::before {
    content: counter(service, decimal-leading-zero);
    position: absolute;
    top: clamp(28px, 3vw, 44px);
    right: clamp(28px, 3vw, 44px);
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: var(--tracking-ui);
    color: var(--text-tertiary);
}

.service-card::after {
    content: '';
    position: absolute;
    left: -1px;
    top: -1px;
    height: 3px;
    width: 0;
    background: var(--accent);
    transition: width 0.45s var(--ease);
}

.service-card:hover,
.service-card.highlight {
    background: var(--surface);
}

.service-card:hover::after,
.service-card.highlight::after {
    width: calc(100% + 1px);
}

.service-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
    border: 2px solid var(--accent);
    color: var(--accent-text);
    transition: background 0.35s ease, color 0.35s ease;
}

.service-card:hover .service-icon {
    background: var(--accent);
    color: #373737;
}

.service-icon svg {
    width: 26px;
    height: 26px;
    color: currentColor;
}

.service-card h3 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.service-card > p {
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 22px;
}

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

.service-list li {
    position: relative;
    padding: 9px 0 9px 22px;
    border-top: 1px solid var(--border-color);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--text-primary);
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 8px;
    height: 8px;
    margin-top: -4px;
    background: var(--accent);
}

/* ===================================
   Why Choose Us Section
   =================================== */
.why-choose-us {
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
}

.feature-card {
    padding: 36px 32px 36px 0;
    border-top: 1px solid var(--border-strong);
    text-align: left;
    transition: var(--transition);
}

.feature-card:not(:nth-child(3n + 1)) {
    padding-left: 32px;
    border-left: 1px solid var(--border-color);
}

.feature-icon {
    width: 44px;
    height: 44px;
    margin: 0 0 22px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    color: var(--accent-text);
    transition: transform 0.35s var(--ease);
}

.feature-card:hover .feature-icon {
    transform: translateX(6px);
}

.feature-icon svg {
    width: 36px;
    height: 36px;
    color: currentColor;
}

.feature-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-secondary);
    font-weight: 400;
    line-height: 1.7;
}

/* ===================================
   Process Section — image band
   =================================== */
.process {
    color: #ffffff;
    background: #1f1f1f;
    overflow: hidden;
    isolation: isolate;
}

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

.process-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.32) saturate(0.7);
}

.process .section-header h2 {
    color: #ffffff;
}

.process .section-header p {
    color: rgba(255, 255, 255, 0.8);
}

.process .section-eyebrow {
    color: var(--accent);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    counter-reset: step;
}

.process-step {
    position: relative;
    padding: 34px 28px 10px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.55);
    text-align: left;
}

.process-step + .process-step {
    padding-left: 28px;
}

.process-step::before {
    /* node on the timeline */
    content: '';
    position: absolute;
    top: -6px;
    left: 0;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: #ffffff;
    transition: background 0.3s ease, transform 0.3s ease;
}

.process-step + .process-step::before {
    left: 28px;
}

.process-step:hover::before {
    background: var(--accent);
    transform: scale(1.4);
}

.step-number {
    font-family: var(--font-display);
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, 0.55);
    margin-bottom: 18px;
    transition: color 0.35s ease, -webkit-text-stroke-color 0.35s ease;
}

.process-step:hover .step-number {
    color: var(--accent);
    -webkit-text-stroke-color: var(--accent);
}

.step-icon {
    display: none;
}

.process-step h3 {
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 10px;
}

.process-step p {
    color: rgba(255, 255, 255, 0.82);
    font-weight: 400;
    line-height: 1.7;
}

/* ===================================
   Case Studies Section
   =================================== */
.case-studies {
    background: var(--bg-primary);
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: clamp(56px, 7vw, 96px);
}

.case-study-card {
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border-radius: 0;
    overflow: hidden;
    transition: transform 0.4s var(--ease), box-shadow 0.4s ease;
}

.case-study-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.case-study-media {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.case-study-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.8) saturate(0.85);
    transition: transform 0.8s var(--ease);
}

.case-study-card:hover .case-study-media img {
    transform: scale(1.06);
}

.case-study-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 28px;
}

.case-study-tag {
    align-self: flex-start;
    display: inline-block;
    padding: 6px 10px;
    margin-bottom: 18px;
    background: var(--accent);
    color: #373737;
    border-radius: 0;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
}

.case-study-media .case-study-tag {
    position: absolute;
    left: 20px;
    bottom: 0;
    margin: 0;
}

.case-study-card h3 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.case-study-card p {
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 24px;
    line-height: 1.7;
}

.case-study-results {
    margin-top: auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--border-color);
    padding-top: 18px;
}

.result-item {
    text-align: left;
}

.result-item + .result-item {
    padding-left: 14px;
    border-left: 1px solid var(--border-color);
}

.result-number {
    display: block;
    font-family: var(--font-display);
    font-size: 1.7rem;
    font-weight: 700;
    line-height: 1.1;
    color: var(--accent-text);
    margin-bottom: 4px;
}

.result-label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: var(--tracking-ui);
    text-transform: uppercase;
    color: var(--text-tertiary);
}

/* Industries Served */
.industries-served {
    display: grid;
    grid-template-columns: minmax(220px, 1fr) 2.5fr;
    gap: 40px;
    align-items: start;
    padding-top: 36px;
    border-top: 1px solid var(--border-strong);
    background: transparent;
    text-align: left;
}

.industries-served h3 {
    font-size: 1.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-primary);
}

.industries-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.industry-badge {
    padding: 10px 16px;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-strong);
    border-radius: 0;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: var(--tracking-ui);
    text-transform: uppercase;
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.industry-badge:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #373737;
}

/* ===================================
   Technologies Section
   =================================== */
.technologies {
    background: var(--bg-secondary);
}

.tech-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    border-top: 1px solid var(--border-strong);
}

.tech-category {
    display: grid;
    grid-template-columns: 170px 1fr;
    gap: 20px;
    align-items: start;
    padding: 26px 0;
    border-bottom: 1px solid var(--border-color);
    background: transparent;
    border-radius: 0;
    transition: var(--transition);
}

.tech-category:nth-child(odd) {
    padding-right: 32px;
}

.tech-category:hover {
    transform: none;
    box-shadow: none;
}

.tech-category h3 {
    font-size: 1.15rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-text);
    margin: 4px 0 0;
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-badge {
    padding: 7px 12px;
    background: var(--surface);
    color: var(--text-primary);
    border: 1px solid transparent;
    border-radius: 0;
    box-shadow: none;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

.tech-badge:hover {
    background: var(--accent);
    color: #373737;
    border-color: var(--accent);
}

/* ===================================
   Contact Section
   =================================== */
.contact-section {
    background: var(--bg-primary);
}

.cta-content {
    max-width: 900px;
    margin-bottom: clamp(40px, 5vw, 64px);
    text-align: left;
}

.cta-content h2 {
    font-size: clamp(2rem, 4.6vw, 3.6rem);
    font-weight: 300;
    line-height: 1.35;
    color: #ffffff;
    margin-bottom: 18px;
}

.cta-content h2 span {
    background: rgba(0, 0, 0, 0.45);
    padding: 0.02em 0.2em;
    -webkit-box-decoration-break: clone;
    box-decoration-break: clone;
}

.cta-content h2 strong {
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
}

[data-theme="light"] .cta-content h2 {
    color: var(--text-primary);
}

[data-theme="light"] .cta-content h2 span {
    background: transparent;
    padding: 0;
}

[data-theme="light"] .cta-content h2 strong {
    color: var(--accent-deep);
}

.cta-content p {
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.35fr;
    gap: 0;
    background: var(--surface);
}

.contact-info {
    position: relative;
    padding: clamp(28px, 4vw, 52px);
    background: var(--accent);
    color: #373737;
    border-radius: 0;
    box-shadow: none;
}

.contact-info h3 {
    font-size: 2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #373737;
    margin-bottom: 12px;
}

.contact-info > p {
    color: #373737;
    font-weight: 500;
    margin-bottom: 36px;
    line-height: 1.7;
}

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

.contact-item {
    display: flex;
    gap: 18px;
    padding: 20px 0;
    border-top: 1px solid rgba(55, 55, 55, 0.3);
}

.contact-item svg {
    width: 22px;
    height: 22px;
    color: #373737;
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-item h4 {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: #373737;
    margin-bottom: 4px;
}

.contact-item p {
    color: #373737;
    font-weight: 600;
    line-height: 1.55;
}

/* Contact Form */
.contact-form-wrapper {
    padding: clamp(28px, 4vw, 52px);
    background: transparent;
    border-radius: 0;
    box-shadow: none;
}

.contact-form h3 {
    font-size: 2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-primary);
    margin-bottom: 28px;
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 24px;
}

.contact-form h3,
.contact-form .form-group:has(textarea),
.contact-form .form-group:has(select),
.contact-form .btn-submit,
.contact-form .form-message {
    grid-column: 1 / -1;
}

.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 0;
    background: transparent;
    color: var(--text-primary);
    border: none;
    border-bottom: 1px solid var(--border-strong);
    border-radius: 0;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group select {
    appearance: none;
    cursor: pointer;
    background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%);
    background-position: calc(100% - 12px) 50%, calc(100% - 7px) 50%;
    background-size: 5px 5px;
    background-repeat: no-repeat;
}

.form-group select option {
    background: var(--bg-primary);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-bottom-color: var(--accent);
    box-shadow: 0 1px 0 0 var(--accent);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    width: 100%;
    margin-top: 10px;
    padding: 18px 24px;
}

.form-message {
    margin-top: 16px;
    padding: 14px 16px;
    border-radius: 0;
    display: none;
    font-weight: 600;
}

.form-message.success {
    background: rgba(102, 204, 51, 0.12);
    color: var(--text-primary);
    border-left: 3px solid var(--success);
    display: block;
}

.form-message.error {
    background: rgba(255, 67, 67, 0.12);
    color: var(--text-primary);
    border-left: 3px solid var(--danger);
    display: block;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: #2b2b2b;
    color: #ffffff;
    padding: clamp(56px, 7vw, 96px) 0 28px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
    gap: 48px;
    margin-bottom: 56px;
}

.footer-section h3,
.footer-section h4 {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 20px;
}

.footer-logo-image {
    height: 30px;
    width: auto;
    margin-bottom: 20px;
    filter: brightness(0) invert(1);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.72);
    font-weight: 400;
    line-height: 1.7;
    margin-bottom: 22px;
}

.social-links {
    display: flex;
    gap: 8px;
}

.social-links a {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 0;
    background: transparent;
    transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.social-links a:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #373737;
}

.social-links svg {
    width: 16px;
    height: 16px;
}

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

.footer-links li {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links a {
    display: block;
    padding: 9px 0;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: var(--tracking-ui);
    text-transform: uppercase;
    transition: color 0.25s ease, padding 0.25s ease;
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 6px;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.newsletter-form input {
    padding: 12px 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 0;
    color: #ffffff;
    font-family: inherit;
    font-size: 1rem;
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.newsletter-form input:focus {
    outline: none;
    border-bottom-color: var(--accent);
}

.newsletter-form button {
    align-self: flex-start;
    margin-top: 6px;
}

.newsletter-form .btn-primary:hover {
    background: #ffffff;
    border-color: #ffffff;
    color: #373737;
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
    letter-spacing: var(--tracking-ui);
    text-transform: uppercase;
}

.footer-bottom-links {
    display: flex;
    align-items: center;
    gap: 22px;
}

.footer-bottom-links a {
    position: relative;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 12px;
    letter-spacing: var(--tracking-ui);
    text-transform: uppercase;
    transition: color 0.25s ease;
}

.footer-bottom-links a + a::before {
    content: '';
    position: absolute;
    left: -13px;
    top: 50%;
    width: 3px;
    height: 3px;
    margin-top: -1.5px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
}

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

/* ===================================
   Animations
   =================================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s var(--ease);
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

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

    .animate-on-scroll {
        opacity: 1;
        transform: none;
    }
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1100px) {
    .services-grid,
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-card:not(:nth-child(3n + 1)) {
        padding-left: 0;
        border-left: none;
    }

    .feature-card:nth-child(even) {
        padding-left: 32px;
        border-left: 1px solid var(--border-color);
    }

    .process-steps {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 48px;
    }

    .process-step:nth-child(3) {
        padding-left: 0;
    }

    .process-step:nth-child(3)::before {
        left: 0;
    }

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

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

@media (max-width: 900px) {
    /* Navigation — full-screen overlay menu */
    .hamburger {
        display: flex;
        position: relative;
        z-index: 1002;
    }

    .theme-toggle {
        position: relative;
        z-index: 1002;
        margin-left: auto;
    }

    .nav-menu {
        position: fixed;
        inset: 0;
        z-index: 1001;
        flex-direction: column;
        align-items: stretch;
        justify-content: center;
        gap: 0;
        padding: 100px var(--main-padding) 40px;
        background: #373737;
        opacity: 0;
        visibility: hidden;
        transform: translateX(30px);
        transition: opacity 0.35s ease, transform 0.35s var(--ease), visibility 0.35s;
        overflow-y: auto;
    }

    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateX(0);
    }

    .nav-item {
        width: 100%;
        border-top: 1px solid rgba(255, 255, 255, 0.4);
    }

    .nav-link,
    [data-theme="light"] .navbar.scrolled .nav-link {
        width: 100%;
        padding: 16px 0;
        font-family: var(--font-display);
        font-size: 26px;
        font-weight: 500;
        letter-spacing: 0.08em;
        color: #ffffff;
        border: none;
    }

    .nav-link:hover,
    .nav-link.active,
    [data-theme="light"] .navbar.scrolled .nav-link:hover,
    [data-theme="light"] .navbar.scrolled .nav-link.active {
        background: transparent;
        color: var(--accent);
        font-weight: 700;
    }

    .dropdown-menu {
        position: static;
        display: none;
        margin: 0 0 12px;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border-top: none;
        background: transparent;
    }

    .dropdown-menu::before {
        display: none;
    }

    .nav-dropdown.active .dropdown-menu {
        display: block;
    }

    .dropdown-menu a {
        padding: 10px 0 10px 16px;
        border-bottom: none;
        color: rgba(255, 255, 255, 0.8);
    }

    .hamburger.active .bar,
    [data-theme="light"] .navbar.scrolled .hamburger.active .bar {
        background: #ffffff;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    /* Grid tiles */
    .grid-wrapper {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-tile-tall {
        grid-row: span 1;
    }

    /* Contact */
    .contact-container {
        grid-template-columns: 1fr;
    }

    .industries-served {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 68px;
    }

    .logo-image {
        height: 26px;
    }

    .hero-slide {
        padding-bottom: 260px;
    }

    .hero-navigation {
        bottom: 200px;
    }

    .trust-indicators {
        grid-template-columns: 1fr 1fr 1fr;
        padding-bottom: 24px;
    }

    .trust-item + .trust-item {
        padding-left: 12px;
    }

    .trust-item p {
        font-size: 10px;
        letter-spacing: 0.12em;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .services-grid,
    .features-grid,
    .case-studies-grid,
    .process-steps {
        grid-template-columns: 1fr;
    }

    .feature-card,
    .feature-card:nth-child(even),
    .feature-card:not(:nth-child(3n + 1)) {
        padding: 28px 0;
        border-left: none;
    }

    .process-step,
    .process-step + .process-step {
        padding-left: 0;
    }

    .process-step + .process-step::before {
        left: 0;
    }

    .tech-category {
        grid-template-columns: 1fr;
        gap: 12px;
        padding-right: 0 !important;
    }

    .tech-categories {
        grid-template-columns: 1fr;
    }

    .contact-form {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 560px) {
    .grid-wrapper {
        grid-template-columns: 1fr;
    }

    .grid-tile-horizontal {
        grid-column: span 1;
    }

    .case-study-results {
        grid-template-columns: 1fr 1fr 1fr;
    }

    .result-number {
        font-size: 1.35rem;
    }
}