/* ==========================================
   BRIKA ENERGY - Corporate Landing Page
   ========================================== */

/* CSS Custom Properties */
:root {
    /* Colors - Strict B&W palette */
    --color-black: #000000;
    --color-white: #ffffff;
    --color-gray-50: #fafafa;
    --color-gray-100: #f5f5f5;
    --color-gray-200: #e5e5e5;
    --color-gray-300: #d4d4d4;
    --color-gray-400: #a3a3a3;
    --color-gray-500: #737373;
    --color-gray-600: #525252;
    --color-gray-700: #404040;
    --color-gray-800: #262626;
    --color-gray-900: #171717;
    --color-gray-950: #0a0a0a;

    /* Typography - Premium font */
    --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Font Sizes - Refined fluid typography */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
    --text-sm: clamp(0.875rem, 0.825rem + 0.25vw, 0.9375rem);
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
    --text-lg: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.75rem);
    --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
    --text-5xl: clamp(2.75rem, 2rem + 3.75vw, 4.5rem);

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    --space-6xl: 10rem;

    /* Border Radius - Soft, premium corners */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;

    /* Layout */
    --container-max: 1200px;
    --container-padding: clamp(1.5rem, 5vw, 4rem);

    /* Transitions - Premium easing */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 200ms var(--ease-out-quart);
    --transition-base: 300ms var(--ease-out-expo);
    --transition-slow: 500ms var(--ease-out-expo);
    --transition-slower: 700ms var(--ease-out-expo);

    /* Z-index */
    --z-header: 1000;
    --z-overlay: 900;
}

/* ==========================================
   RESET & BASE
   ========================================== */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: var(--font-weight-regular);
    line-height: 1.6;
    color: var(--color-gray-900);
    background-color: var(--color-white);
    overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

input,
button,
textarea,
select {
    font: inherit;
    color: inherit;
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

/* ==========================================
   UTILITIES
   ========================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section__title {
    font-size: var(--text-3xl);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.025em;
    line-height: 1.2;
    margin-bottom: var(--space-3xl);
    color: var(--color-black);
}

/* ==========================================
   REVEAL ANIMATIONS
   ========================================== */

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.reveal--visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal--delay-1 {
    transition-delay: 100ms;
}

.reveal--delay-2 {
    transition-delay: 200ms;
}

.reveal--delay-3 {
    transition-delay: 300ms;
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: var(--text-sm);
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.01em;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-transform: none;
}

.btn--primary {
    background-color: var(--color-black);
    color: var(--color-white);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn--primary:hover {
    background-color: var(--color-gray-800);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn--primary:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn--secondary {
    background-color: transparent;
    color: var(--color-black);
    border: 1.5px solid var(--color-gray-300);
}

.btn--secondary:hover {
    background-color: var(--color-gray-100);
    border-color: var(--color-gray-400);
}

.btn--secondary:active {
    background-color: var(--color-gray-200);
}

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

/* ==========================================
   HEADER / NAVIGATION
   ========================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-header);
    background-color: var(--color-white);
    transition: box-shadow var(--transition-base);
}

.header--scrolled {
    box-shadow: 0 1px 0 var(--color-gray-200);
}

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

.nav__logo {
    display: flex;
    align-items: center;
}

.nav__logo-img {
    height: 32px;
    width: auto;
    transition: opacity var(--transition-base);
}

.nav__logo:hover .nav__logo-img {
    opacity: 0.7;
}

@media (min-width: 768px) {
    .nav__logo-img {
        height: 40px;
    }
}

.nav__toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    z-index: calc(var(--z-header) + 1);
}

.nav__toggle-line {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-black);
    transition: all var(--transition-base);
}

.nav__toggle--active .nav__toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle--active .nav__toggle-line:nth-child(2) {
    opacity: 0;
}

.nav__toggle--active .nav__toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.nav__menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-white);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    z-index: var(--z-overlay);
}

.nav__menu--open {
    transform: translateX(0);
}

.nav__link {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.02em;
    position: relative;
    padding: var(--space-sm) 0;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-black);
    transition: width var(--transition-base);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__link--cta {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
}

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

.nav__link--cta:hover {
    background-color: var(--color-gray-800);
}

/* Desktop Navigation */
@media (min-width: 768px) {
    .nav__toggle {
        display: none;
    }

    .nav__menu {
        position: static;
        width: auto;
        height: auto;
        flex-direction: row;
        background-color: transparent;
        transform: none;
        gap: var(--space-2xl);
    }

    .nav__link {
        font-size: var(--text-sm);
    }
}

/* ==========================================
   HERO SECTION
   ========================================== */

.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
    background-color: var(--color-gray-900);
}

.hero__slider {
    position: relative;
    width: 100%;
    height: 100%;
}

/* Individual slide */
.hero__slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    padding-top: 80px;
    transition: transform 800ms var(--ease-out-expo);
    will-change: transform;
}

/* Slide background image */
.hero__slide-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center right;
    background-repeat: no-repeat;
    background-color: var(--color-gray-900);
}

.hero__slide-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to right,
            rgba(0, 0, 0, 0.85) 0%,
            rgba(0, 0, 0, 0.7) 50%,
            rgba(0, 0, 0, 0.5) 100%);
}

/* Blue tint overlay for second hero slide */
.hero__slide:nth-child(2) .hero__slide-bg::after {
    background: linear-gradient(to right,
            rgba(15, 35, 75, 0.85) 0%,
            rgba(20, 50, 100, 0.7) 50%,
            rgba(30, 60, 110, 0.5) 100%);
}

/* Slide content animation */
.hero__slide .hero__content {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 500ms var(--ease-out-expo) 300ms, transform 500ms var(--ease-out-expo) 300ms;
}

.hero__slide--active .hero__content {
    opacity: 1;
    transform: translateY(0);
}

.hero__container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-4xl) var(--container-padding);
    position: relative;
    z-index: 2;
}

.hero__content {
    max-width: 700px;
}

.hero__logo {
    margin-bottom: var(--space-2xl);
}

.hero__logo-img {
    height: 48px;
    width: auto;
    filter: brightness(0) invert(1);
}

@media (min-width: 768px) {
    .hero__logo-img {
        height: 64px;
    }
}

@media (min-width: 1024px) {
    .hero__logo-img {
        height: 80px;
    }
}

.hero__title {
    font-size: var(--text-5xl);
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: var(--space-xl);
    color: var(--color-white);
}

.hero__subtitle {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-regular);
    line-height: 1.7;
    color: var(--color-gray-300);
    margin-bottom: var(--space-2xl);
    max-width: 550px;
}

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

@media (min-width: 480px) {
    .hero__cta {
        flex-direction: row;
        gap: var(--space-lg);
    }
}

/* Dots navigation - always vertical */
.hero__dots {
    position: absolute;
    right: 1.25rem;
    bottom: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 10;
}

@media (min-width: 768px) {
    .hero__dots {
        right: 2rem;
        bottom: auto;
        top: 50%;
        transform: translateY(-50%);
    }
}

.hero__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 1.5px solid rgba(255, 255, 255, 0.6);
    background: transparent;
    cursor: pointer;
    padding: 0;
    transition: all var(--transition-base);
}

.hero__dot--active {
    background: var(--color-white);
    border-color: var(--color-white);
}

.hero__dot:hover {
    border-color: var(--color-white);
}

/* Hero Button Overrides */
.hero .btn--primary {
    background-color: var(--color-white);
    color: var(--color-black);
}

.hero .btn--primary:hover {
    background-color: var(--color-gray-100);
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.2);
}

.hero .btn--secondary {
    background-color: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.4);
}

.hero .btn--secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
}

/* ==========================================
   ABOUT SECTION
   ========================================== */

.about {
    padding: var(--space-5xl) 0;
    background-color: var(--color-gray-100);
}

.about .container {
    display: grid;
    gap: var(--space-3xl);
}

@media (min-width: 768px) {
    .about .container {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
}

.about__text p {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-light);
    line-height: 1.8;
    color: var(--color-gray-700);
}

.about__visual {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
}

@media (min-width: 768px) {
    .about__visual {
        padding-top: calc(var(--text-3xl) * 1.2 + var(--space-3xl));
    }
}

.about__team {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.about__profile {
    font-size: var(--text-base);
    color: var(--color-gray-700);
    line-height: 1.6;
}

.about__profile strong {
    font-weight: var(--font-weight-semibold);
    color: var(--color-black);
    letter-spacing: 0.02em;
}

/* ==========================================
   SERVICES SECTION
   ========================================== */

.services {
    padding: var(--space-5xl) 0;
    background-color: var(--color-white);
}

.services+.services {
    padding-top: var(--space-md);
}

.services__grid {
    display: grid;
    gap: var(--space-lg);
}

@media (min-width: 640px) {
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .services__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-card {
    padding: var(--space-2xl);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-gray-300);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.service-card__number {
    display: block;
    font-size: var(--text-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-400);
    margin-bottom: var(--space-lg);
    letter-spacing: 0.05em;
}

.service-card__title {
    font-size: var(--text-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-md);
    color: var(--color-black);
    letter-spacing: -0.01em;
}

.service-card__description {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    line-height: 1.7;
}

/* ==========================================
   PROJECTS SECTION
   ========================================== */

.projects {
    padding: var(--space-5xl) 0;
    background-color: var(--color-gray-100);
}

.projects__timeline {
    position: relative;
    padding-left: var(--space-2xl);
}

.projects__timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 1px;
    height: 100%;
    background-color: var(--color-gray-300);
}

.project {
    position: relative;
    padding-bottom: var(--space-2xl);
}

.project:last-child {
    padding-bottom: 0;
}

.project__marker {
    position: absolute;
    left: calc(-1 * var(--space-2xl) - 4px);
    top: 0;
    width: 9px;
    height: 9px;
    background-color: var(--color-black);
    border-radius: 50%;
}

.project__content {
    padding: var(--space-xl);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.project__content:hover {
    border-color: var(--color-gray-300);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.project__title {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-xs);
    color: var(--color-black);
}

.project__client {
    font-size: var(--text-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

.project__description {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    line-height: 1.6;
}

@media (min-width: 768px) {
    .projects__timeline {
        padding-left: var(--space-3xl);
    }

    .project__marker {
        left: calc(-1 * var(--space-3xl) - 4px);
    }
}

/* ==========================================
   CLIENTS SECTION - Interactive Cards
   ========================================== */

.clients {
    padding: var(--space-5xl) 0;
    background-color: var(--color-white);
}

.clients__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    position: relative;
}

/* Client Card */
.client-card {
    position: relative;
    aspect-ratio: 4 / 3;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all 500ms var(--ease-out-expo);
    -webkit-tap-highlight-color: transparent;
}

.client-card__inner {
    position: relative;
    width: 100%;
    height: 100%;
    background-color: var(--color-gray-950);
    border-radius: var(--radius-lg);
    transition: all 500ms var(--ease-out-expo);
}

/* Front side - Logo centered */
.client-card__front {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    transition: all 500ms var(--ease-out-expo);
}

.client-card__logo {
    max-width: 55%;
    max-height: 40%;
    object-fit: contain;
    filter: brightness(0) invert(1);
    transition: all 500ms var(--ease-out-expo);
}

/* Back side - Expanded content */
.client-card__back {
    position: absolute;
    inset: 0;
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    opacity: 0;
    transition: all 500ms var(--ease-out-expo);
}

.client-card__name {
    display: inline-block;
    align-self: flex-start;
    font-size: 0.65rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    padding: 6px 12px;
    border: 1.5px solid rgba(255, 255, 255, 0.8);
    border-radius: 50px;
    letter-spacing: 0.03em;
    margin-bottom: var(--space-md);
    transition: all 500ms var(--ease-out-expo);
    transform: translateY(-20px);
    opacity: 0;
}

.client-card__content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding-right: 50px;
    transition: all 500ms var(--ease-out-expo) 100ms;
    transform: translateY(20px);
    opacity: 0;
    overflow: hidden;
}

.client-card__content p {
    font-size: 0.8rem;
    font-weight: var(--font-weight-regular);
    color: var(--color-white);
    line-height: 1.5;
    margin: 0;
}

.client-card__logo-small {
    position: absolute;
    bottom: var(--space-md);
    right: var(--space-md);
    width: 48px;
    height: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
    opacity: 0;
    transform: translate(20px, 20px);
    transition: all 500ms var(--ease-out-expo) 150ms;
}

/* Ingeniería Externa logo needs to be larger */
.client-card--ie .client-card__logo {
    max-width: 80%;
    max-height: 60%;
}

/* Ingeniería Externa card - mobile adjustments */
.client-card--ie .client-card__logo-small {
    width: 70px;
    bottom: var(--space-sm);
    right: var(--space-sm);
}

.client-card--ie .client-card__content {
    padding-right: 75px;
    padding-bottom: var(--space-xl);
}

.client-card--ie .client-card__content p {
    font-size: 0.7rem;
    line-height: 1.35;
}

/* Hover/Active State - Card expands and shows content */
.client-card:hover,
.client-card:focus,
.client-card.is-active {
    z-index: 10;
}

.client-card:hover .client-card__front,
.client-card:focus .client-card__front,
.client-card.is-active .client-card__front {
    opacity: 0;
}

.client-card:hover .client-card__back,
.client-card:focus .client-card__back,
.client-card.is-active .client-card__back {
    opacity: 1;
}

.client-card:hover .client-card__name,
.client-card:focus .client-card__name,
.client-card.is-active .client-card__name {
    transform: translateY(0);
    opacity: 1;
}

.client-card:hover .client-card__content,
.client-card:focus .client-card__content,
.client-card.is-active .client-card__content {
    transform: translateY(0);
    opacity: 1;
}

.client-card:hover .client-card__logo-small,
.client-card:focus .client-card__logo-small,
.client-card.is-active .client-card__logo-small {
    opacity: 0.9;
    transform: translate(0, 0);
}

/* Color variations - Hover/Active */
.client-card[data-color="orange"]:hover .client-card__inner,
.client-card[data-color="orange"]:focus .client-card__inner,
.client-card[data-color="orange"].is-active .client-card__inner {
    background-color: #f5a623;
}

.client-card[data-color="lightblue"]:hover .client-card__inner,
.client-card[data-color="lightblue"]:focus .client-card__inner,
.client-card[data-color="lightblue"].is-active .client-card__inner {
    background-color: #4fc3f7;
}

.client-card[data-color="red"]:hover .client-card__inner,
.client-card[data-color="red"]:focus .client-card__inner,
.client-card[data-color="red"].is-active .client-card__inner {
    background-color: #e53935;
}

.client-card[data-color="blue"]:hover .client-card__inner,
.client-card[data-color="blue"]:focus .client-card__inner,
.client-card[data-color="blue"].is-active .client-card__inner {
    background-color: #1e88e5;
}

/* Tablet - 2 columns */
@media (min-width: 640px) {
    .clients__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xl);
    }

    .client-card {
        aspect-ratio: 16 / 10;
        border-radius: var(--radius-xl);
    }

    .client-card__inner {
        border-radius: var(--radius-xl);
    }

    .client-card__front {
        padding: var(--space-xl);
    }

    .client-card__logo {
        max-width: 60%;
        max-height: 50%;
    }

    .client-card__back {
        padding: var(--space-xl);
    }

    .client-card__name {
        font-size: var(--text-xs);
        padding: var(--space-sm) var(--space-lg);
        margin-bottom: var(--space-lg);
    }

    .client-card__content {
        gap: var(--space-sm);
        padding-right: 70px;
        padding-bottom: var(--space-lg);
    }

    .client-card__content p {
        font-size: var(--text-xs);
        line-height: 1.5;
    }

    .client-card__logo-small {
        width: 48px;
        bottom: var(--space-lg);
        right: var(--space-lg);
    }

    .client-card--ie .client-card__logo-small {
        width: 80px;
        bottom: var(--space-lg);
        right: var(--space-lg);
    }

    .client-card--ie .client-card__content {
        padding-right: 90px;
    }

    .client-card--ie .client-card__content p {
        font-size: var(--text-xs);
    }
}

/* Desktop */
@media (min-width: 768px) {
    .client-card__logo {
        max-width: 50%;
        max-height: 45%;
    }

    .client-card__name {
        font-size: var(--text-sm);
        padding: var(--space-sm) var(--space-xl);
    }

    .client-card__content p {
        font-size: var(--text-sm);
    }

    .client-card__logo-small {
        width: 64px;
    }
}

/* Large Desktop */
@media (min-width: 1024px) {
    .client-card__back {
        padding: var(--space-2xl);
    }

    .client-card__name {
        font-size: var(--text-base);
        margin-bottom: var(--space-xl);
    }

    .client-card__content p {
        font-size: var(--text-base);
    }

    .client-card__logo-small {
        width: 80px;
        bottom: var(--space-xl);
        right: var(--space-xl);
    }

    .client-card--ie .client-card__logo-small {
        width: 110px;
    }

    .client-card--ie .client-card__content {
        padding-right: 120px;
    }
}

/* ==========================================
   CONTACT SECTION
   ========================================== */

.contact {
    padding: var(--space-5xl) 0;
    background-color: var(--color-gray-900);
    color: var(--color-white);
}

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

.contact__wrapper {
    display: grid;
    gap: var(--space-3xl);
}

@media (min-width: 768px) {
    .contact__wrapper {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-4xl);
    }
}

.contact__intro {
    font-size: var(--text-lg);
    font-weight: var(--font-weight-light);
    color: var(--color-gray-400);
    margin-bottom: var(--space-2xl);
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

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

.contact__label {
    font-size: var(--text-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.contact__value {
    font-size: var(--text-base);
    color: var(--color-white);
    transition: color var(--transition-base);
}

.contact__value:hover {
    color: var(--color-gray-400);
}

/* Contact Form */
.contact__form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.form__group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.form__label {
    font-size: var(--text-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-400);
    text-transform: none;
    letter-spacing: 0.02em;
}

.form__input,
.form__textarea {
    padding: 0.875rem 1rem;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-gray-700);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: var(--text-base);
    transition: all var(--transition-base);
}

.form__input:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--color-gray-500);
    background-color: rgba(255, 255, 255, 0.08);
}

.form__input::placeholder,
.form__textarea::placeholder {
    color: var(--color-gray-500);
}

.form__textarea {
    resize: vertical;
    min-height: 140px;
}

.contact .btn--primary {
    background-color: var(--color-white);
    color: var(--color-black);
    margin-top: var(--space-md);
}

.contact .btn--primary:hover {
    background-color: var(--color-gray-200);
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
    padding: var(--space-3xl) 0;
    background-color: var(--color-black);
    color: var(--color-white);
}

.footer__logo-img {
    height: 36px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.9;
    transition: opacity var(--transition-base);
}

.footer__logo-img:hover {
    opacity: 1;
}

@media (min-width: 768px) {
    .footer__logo-img {
        height: 44px;
    }
}

.footer__divider {
    width: 100%;
    height: 1px;
    background-color: var(--color-gray-800);
    margin-bottom: var(--space-2xl);
}

.footer__content {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    text-align: center;
}

@media (min-width: 768px) {
    .footer__content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        text-align: left;
    }
}

.footer__brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

@media (min-width: 768px) {
    .footer__brand {
        align-items: flex-start;
    }
}

.footer__tagline {
    font-size: var(--text-xs);
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer__location {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

.footer__copyright {
    font-size: var(--text-xs);
    color: var(--color-gray-600);
}

/* ==========================================
   ACCESSIBILITY
   ========================================== */

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--color-black);
    outline-offset: 2px;
}

.contact :focus-visible {
    outline-color: var(--color-white);
}