/* ========================================
   VAZKON - Premium Engineering Website
   International Corporate Style
   ======================================== */

/* === CSS VARIABLES === */
:root {
    /* Colors - Azul Petróleo / Azul Noche Premium */
    --color-black: #0E1A26;
    --color-dark: #0E1A26;
    --color-charcoal: #142533;
    --color-gray-900: #1C3040;
    --color-gray-800: #2A4459;
    --color-gray-700: #3D5A73;
    --color-gray-600: #5A7A94;
    --color-gray-500: #7A9AB4;
    --color-gray-400: #9BB8CF;
    --color-gray-300: #C5D8E8;
    --color-gray-200: #E2EDF5;
    --color-gray-100: #F2F7FA;
    --color-white: #ffffff;

    /* Accent - Dorado técnico */
    --color-accent: #C9A227;
    --color-accent-dark: #A68520;

    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Sizing */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 2.75rem;
    --text-5xl: 3.5rem;
    --text-6xl: 4.5rem;
    --text-7xl: 6rem;
    --text-8xl: 8rem;

    /* 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: 12rem;

    /* Layout */
    --container-max: 1600px;
    --container-padding: 2rem;

    /* Transitions */
    --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(0.65, 0, 0.35, 1);

    --duration-fast: 200ms;
    --duration-base: 400ms;
    --duration-slow: 600ms;
    --duration-slower: 800ms;
}

@media (min-width: 768px) {
    :root {
        --container-padding: 4rem;
    }
}

@media (min-width: 1200px) {
    :root {
        --container-padding: 6rem;
    }
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-gray-300);
    background-color: var(--color-black);
    overflow-x: hidden;
}

body.no-scroll {
    overflow: hidden;
}

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

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

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

ul, ol {
    list-style: none;
}

/* === LOADER === */
.loader {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background-color: var(--color-black);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s var(--ease-out-expo), visibility 0.6s;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader__content {
    text-align: center;
}

.loader__logo {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 600;
    letter-spacing: 0.3em;
    color: var(--color-white);
    margin-bottom: var(--space-xl);
}

.loader__bar {
    width: 200px;
    height: 1px;
    background-color: var(--color-gray-800);
    overflow: hidden;
}

.loader__progress {
    width: 0;
    height: 100%;
    background-color: var(--color-white);
    animation: loadProgress 1.5s var(--ease-out-expo) forwards;
}

@keyframes loadProgress {
    to { width: 100%; }
}

/* === CURSOR === */
.cursor, .cursor-follower {
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    display: none;
}

@media (min-width: 1024px) and (hover: hover) {
    .cursor, .cursor-follower {
        display: block;
    }

    .cursor {
        width: 8px;
        height: 8px;
        background-color: var(--color-white);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        transition: transform 0.1s, opacity 0.3s;
        mix-blend-mode: difference;
    }

    .cursor-follower {
        width: 40px;
        height: 40px;
        border: 1px solid rgba(255, 255, 255, 0.3);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        transition: transform 0.3s var(--ease-out-quart), width 0.3s, height 0.3s, border-color 0.3s;
    }

    .cursor.hover {
        transform: translate(-50%, -50%) scale(0);
    }

    .cursor-follower.hover {
        width: 80px;
        height: 80px;
        border-color: var(--color-accent);
    }
}

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

/* === TYPOGRAPHY === */
.text--large {
    font-size: var(--text-xl);
    line-height: 1.7;
}

@media (min-width: 768px) {
    .text--large {
        font-size: var(--text-2xl);
    }
}

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

.text--muted {
    color: var(--color-gray-500);
}

/* === SECTION LABEL === */
.section-label {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.section-label__number {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-gray-500);
}

.section-label__line {
    width: 60px;
    height: 1px;
    background-color: var(--color-gray-700);
}

.section-label__text {
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gray-500);
}

.section-label--light .section-label__line {
    background-color: rgba(255, 255, 255, 0.2);
}

.section-label--light .section-label__number,
.section-label--light .section-label__text {
    color: rgba(255, 255, 255, 0.5);
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg) var(--space-2xl);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 0;
    transition: all var(--duration-base) var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.btn__text {
    position: relative;
    z-index: 1;
}

.btn__icon {
    position: relative;
    z-index: 1;
    width: 20px;
    height: 20px;
    transition: transform var(--duration-base) var(--ease-out-expo);
}

.btn__icon svg {
    width: 100%;
    height: 100%;
}

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

.btn--primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: var(--color-accent);
    transform: translateY(100%);
    transition: transform var(--duration-base) var(--ease-out-expo);
}

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

.btn--primary:hover::before {
    transform: translateY(0);
}

.btn--primary:hover .btn__icon {
    transform: translate(4px, -4px);
}

.btn--ghost {
    background-color: transparent;
    color: var(--color-gray-300);
    border: 1px solid var(--color-gray-700);
}

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

.btn--outline-dark {
    background-color: transparent;
    color: var(--color-gray-900);
    border: 1px solid var(--color-gray-900);
}

.btn--outline-dark:hover {
    background-color: var(--color-gray-900);
    color: var(--color-white);
}

.btn--outline-dark:hover .btn__icon {
    transform: translate(4px, -4px);
}

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

.btn--white::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: var(--color-accent);
    transform: translateY(100%);
    transition: transform var(--duration-base) var(--ease-out-expo);
}

.btn--white:hover::before {
    transform: translateY(0);
}

.btn--white:hover .btn__icon {
    transform: translate(4px, -4px);
}

/* === HEADER === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-lg) 0;
    transition: all var(--duration-base) var(--ease-out-expo);
}

.header.scrolled {
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    padding: var(--space-md) 0;
}

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

.header__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    z-index: 1001;
}

@media (min-width: 768px) {
    .header__logo {
        gap: var(--space-md);
    }
}

.header__logo .logo__icon {
    width: 28px;
    height: 28px;
    color: var(--color-white);
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .header__logo .logo__icon {
        width: 36px;
        height: 36px;
    }
}

.logo__brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1;
}

.header__logo .logo__text {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--color-white);
}

.header__logo .logo__subtext {
    font-family: var(--font-display);
    font-size: 0.5rem;
    font-weight: 400;
    letter-spacing: 0.35em;
    color: var(--color-white);
    opacity: 0.7;
    margin-top: 2px;
}

@media (min-width: 768px) {
    .header__logo .logo__text {
        font-size: var(--text-lg);
        letter-spacing: 0.2em;
    }

    .header__logo .logo__subtext {
        font-size: 0.55rem;
        letter-spacing: 0.4em;
    }
}

.header__nav {
    display: none;
}

@media (min-width: 1024px) {
    .header__nav {
        display: block;
    }
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-3xl);
}

.nav__link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-gray-400);
    letter-spacing: 0.02em;
    position: relative;
    padding: var(--space-sm) 0;
    transition: color var(--duration-fast);
}

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

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

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

.header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.header__cta {
    display: none;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-white);
    padding: var(--space-md) var(--space-lg);
    border: 1px solid var(--color-gray-700);
    transition: all var(--duration-fast);
}

@media (min-width: 1024px) {
    .header__cta {
        display: flex;
    }
}

.header__cta svg {
    width: 16px;
    height: 16px;
    transition: transform var(--duration-fast);
}

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

.header__cta:hover svg {
    transform: translate(2px, -2px);
}

.header__toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 32px;
    height: 32px;
    z-index: 1001;
}

@media (min-width: 1024px) {
    .header__toggle {
        display: none;
    }
}

.toggle__line {
    width: 100%;
    height: 1px;
    background-color: var(--color-white);
    transition: all var(--duration-base) var(--ease-out-expo);
    transform-origin: center;
}

.header__toggle.active .toggle__line:first-child {
    transform: rotate(45deg) translate(2px, 4px);
}

.header__toggle.active .toggle__line:last-child {
    transform: rotate(-45deg) translate(2px, -4px);
}

/* === MOBILE MENU === */
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 999;
    background-color: var(--color-black);
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-slow) var(--ease-out-expo);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu__content {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-4xl) var(--container-padding);
}

.mobile-menu__nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.mobile-menu__link {
    display: flex;
    align-items: baseline;
    gap: var(--space-lg);
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 600;
    color: var(--color-white);
    opacity: 0;
    transform: translateY(40px);
    transition: all var(--duration-slow) var(--ease-out-expo);
}

.mobile-menu.active .mobile-menu__link {
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu.active .mobile-menu__link:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu.active .mobile-menu__link:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu.active .mobile-menu__link:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu.active .mobile-menu__link:nth-child(4) { transition-delay: 0.25s; }
.mobile-menu.active .mobile-menu__link:nth-child(5) { transition-delay: 0.3s; }

.mobile-menu__number {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.mobile-menu__footer {
    margin-top: auto;
    padding-top: var(--space-3xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

/* === HERO === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-6xl) 0 var(--space-4xl);
    overflow: hidden;
}

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

.hero__image {
    position: absolute;
    inset: 0;
    background-image: url('../VAZKON_PORTADA.png');
    background-size: cover;
    background-position: center 60%;
    filter: grayscale(30%);
    transform: scale(1.05);
    transition: transform 8s ease-out;
}

.hero:hover .hero__image {
    transform: scale(1);
}

.hero__gradient {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(14, 26, 38, 0.75) 0%, rgba(14, 26, 38, 0.4) 40%, rgba(14, 26, 38, 0.85) 100%),
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(201, 162, 39, 0.12), transparent),
        radial-gradient(ellipse 60% 40% at 100% 100%, rgba(201, 162, 39, 0.06), transparent);
}

.hero__grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: linear-gradient(180deg, transparent, black 30%, black 70%, transparent);
}

.hero__noise {
    position: absolute;
    inset: 0;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

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

.hero__tag {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--ease-out-expo) 0.5s forwards;
}

.tag__line {
    width: 40px;
    height: 1px;
    background-color: var(--color-accent);
}

.tag__text {
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent);
}

.hero__title {
    font-family: var(--font-display);
    font-size: var(--text-5xl);
    font-weight: 600;
    line-height: 1.1;
    color: var(--color-white);
    margin-bottom: var(--space-3xl);
}

@media (min-width: 768px) {
    .hero__title {
        font-size: var(--text-6xl);
    }
}

@media (min-width: 1024px) {
    .hero__title {
        font-size: var(--text-7xl);
    }
}

@media (min-width: 1400px) {
    .hero__title {
        font-size: var(--text-8xl);
    }
}

.title__line {
    display: block;
    overflow: hidden;
}

.title__word {
    display: inline-block;
    opacity: 0;
    transform: translateY(100%);
    animation: slideUp 1s var(--ease-out-expo) forwards;
}

.title__word[data-delay="1"] {
    animation-delay: 0.2s;
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.hero__bottom {
    display: grid;
    gap: var(--space-2xl);
    max-width: 600px;
}

@media (min-width: 1024px) {
    .hero__bottom {
        grid-template-columns: 1fr auto;
        align-items: end;
        max-width: none;
    }
}

.hero__description {
    font-size: var(--text-lg);
    color: var(--color-gray-400);
    line-height: 1.8;
    max-width: 500px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--ease-out-expo) 0.8s forwards;
}

.hero__ctas {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s var(--ease-out-expo) 1s forwards;
}

/* === METRICS STRIP === */
.metrics-strip {
    background-color: var(--color-black);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.metrics-strip__grid {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    padding: var(--space-xl) 0;
}

@media (min-width: 768px) {
    .metrics-strip__grid {
        gap: var(--space-4xl);
        padding: var(--space-2xl) 0;
    }
}

@media (min-width: 1024px) {
    .metrics-strip__grid {
        gap: var(--space-5xl);
        padding: var(--space-3xl) 0;
    }
}

.metric {
    text-align: center;
    padding: 0 var(--space-md);
}

@media (min-width: 768px) {
    .metric {
        padding: 0 var(--space-2xl);
        border-right: 1px solid rgba(255, 255, 255, 0.15);
    }

    .metric:last-child {
        border-right: none;
    }
}

.metric__value {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-white);
    line-height: 1;
}

@media (min-width: 768px) {
    .metric__value {
        font-size: var(--text-3xl);
    }
}

@media (min-width: 1024px) {
    .metric__value {
        font-size: var(--text-4xl);
    }
}

.metric__label {
    display: block;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-gray-500);
    margin-top: var(--space-xs);
}

@media (min-width: 768px) {
    .metric__label {
        font-size: var(--text-xs);
        letter-spacing: 0.1em;
        margin-top: var(--space-sm);
    }
}

/* === EXPERTISE === */
.expertise {
    padding: var(--space-4xl) 0;
    background-color: var(--color-gray-100);
}

@media (min-width: 1024px) {
    .expertise {
        padding: var(--space-5xl) 0;
    }
}

.expertise__header {
    margin-bottom: var(--space-4xl);
}

.expertise__title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-gray-900);
}

@media (min-width: 768px) {
    .expertise__title {
        font-size: var(--text-5xl);
    }
}

.expertise__grid {
    display: grid;
    gap: var(--space-3xl);
    margin-bottom: var(--space-4xl);
}

@media (min-width: 1024px) {
    .expertise__grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-4xl);
        align-items: center;
    }
}

.expertise__intro {
    max-width: 600px;
}

.expertise__intro .text--large {
    color: var(--color-gray-600);
}

.visual__frame {
    position: relative;
    aspect-ratio: 4/3;
    background-color: var(--color-gray-200);
    overflow: hidden;
}

.visual__placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    color: var(--color-gray-400);
    font-size: var(--text-sm);
}

.visual__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform var(--duration-slow) var(--ease-out-expo);
}

.visual__frame:hover .visual__image {
    transform: scale(1.05);
}

/* Expertise Slideshow */
.expertise__slideshow {
    position: absolute;
    inset: 0;
}

.expertise__slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.expertise__slide--active {
    opacity: 1;
}

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

@media (min-width: 768px) {
    .capabilities {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-xl);
    }
}

.capability {
    position: relative;
    padding: var(--space-2xl);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    transition: all var(--duration-base) var(--ease-out-expo);
}

.capability:hover {
    border-color: var(--color-gray-900);
}

.capability__icon {
    width: 48px;
    height: 48px;
    color: var(--color-gray-900);
    margin-bottom: var(--space-xl);
}

.capability__icon svg {
    width: 100%;
    height: 100%;
}

.capability__title {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--space-md);
}

.capability__text {
    font-size: var(--text-base);
    color: var(--color-gray-600);
    line-height: 1.7;
}

.capability__number {
    position: absolute;
    top: var(--space-xl);
    right: var(--space-xl);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    color: var(--color-gray-300);
}

/* === SOLUTIONS === */
.solutions {
    background-color: var(--color-charcoal);
}

.solutions__header {
    padding: var(--space-4xl) 0 var(--space-2xl);
}

@media (min-width: 1024px) {
    .solutions__header {
        padding: var(--space-5xl) 0 var(--space-3xl);
    }
}

.solutions__title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-white);
}

@media (min-width: 768px) {
    .solutions__title {
        font-size: var(--text-5xl);
    }
}

.solutions__grid {
    display: grid;
}

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

.solution {
    position: relative;
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--color-gray-800);
}

@media (min-width: 1024px) {
    .solution {
        border-top: none;
        border-left: 1px solid var(--color-gray-800);
    }

    .solution:first-child {
        border-left: none;
    }
}

.solution__image {
    position: relative;
    aspect-ratio: 16/10;
    background-color: var(--color-gray-900);
    overflow: hidden;
}

.solution__placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    color: var(--color-gray-600);
    font-size: var(--text-sm);
}

.solution__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform var(--duration-slow) var(--ease-out-expo);
}

.solution:hover .solution__img {
    transform: scale(1.08);
}

.solution__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, var(--color-charcoal), transparent 50%);
}

.solution__content {
    padding: var(--space-2xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

@media (min-width: 1024px) {
    .solution__content {
        padding: var(--space-3xl);
    }
}

.solution__number {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--space-lg);
}

.solution__title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

.solution__description {
    font-size: var(--text-base);
    color: var(--color-gray-400);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
}

.solution__features {
    margin-bottom: var(--space-xl);
    flex: 1;
}

.solution__features li {
    position: relative;
    padding-left: var(--space-lg);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-sm);
}

.solution__features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 4px;
    height: 1px;
    background-color: var(--color-accent);
}

.solution__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-white);
    margin-top: auto;
    transition: color var(--duration-fast);
}

.solution__link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--duration-fast);
}

.solution__link:hover {
    color: var(--color-accent);
}

.solution__link:hover svg {
    transform: translate(4px, -4px);
}

/* === PROJECTS === */
.projects {
    padding: var(--space-4xl) 0;
    background-color: var(--color-gray-100);
}

@media (min-width: 1024px) {
    .projects {
        padding: var(--space-5xl) 0;
    }
}

.projects__header {
    margin-bottom: var(--space-4xl);
}

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

@media (min-width: 1024px) {
    .projects__heading {
        grid-template-columns: 1fr 1fr;
        align-items: end;
    }
}

.projects__title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-gray-900);
}

@media (min-width: 768px) {
    .projects__title {
        font-size: var(--text-5xl);
    }
}

.projects__subtitle {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    max-width: 500px;
}

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

.project {
    display: grid;
    background-color: var(--color-white);
    overflow: hidden;
    transition: box-shadow var(--duration-base) var(--ease-out-expo);
}

@media (min-width: 1024px) {
    .project {
        grid-template-columns: 1.2fr 1fr;
    }

    .project:nth-child(even) {
        direction: rtl;
    }

    .project:nth-child(even) > * {
        direction: ltr;
    }
}

.project:hover {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.project__image {
    position: relative;
    aspect-ratio: 16/10;
    background-color: var(--color-gray-200);
    overflow: hidden;
}

@media (min-width: 1024px) {
    .project__image {
        aspect-ratio: auto;
        min-height: 400px;
    }
}

.project__placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    color: var(--color-gray-400);
    font-size: var(--text-sm);
}

.project__slideshow {
    position: relative;
}

.project__slide {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.project__slide--active {
    opacity: 1;
}

.project__tags {
    position: absolute;
    top: var(--space-lg);
    left: var(--space-lg);
    display: flex;
    gap: var(--space-sm);
}

.project__tag {
    padding: var(--space-xs) var(--space-md);
    background-color: var(--color-white);
    font-size: var(--text-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-700);
}

.project__info {
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
}

@media (min-width: 1024px) {
    .project__info {
        padding: var(--space-3xl);
    }
}

.project__meta {
    display: flex;
    justify-content: space-between;
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-lg);
}

.project__title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--space-md);
}

.project__excerpt {
    font-size: var(--text-base);
    color: var(--color-gray-600);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
    flex: 1;
}

.project__stats {
    display: flex;
    gap: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-gray-200);
}

.project__stat {
    display: flex;
    align-items: baseline;
    gap: var(--space-xs);
}

.stat__value {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--color-gray-900);
}

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

.projects__footer {
    text-align: center;
    margin-top: var(--space-4xl);
}

/* === COMPANY === */
.company__intro {
    padding: var(--space-4xl) 0;
    background-color: var(--color-charcoal);
}

@media (min-width: 1024px) {
    .company__intro {
        padding: var(--space-5xl) 0;
    }
}

.company__statement {
    max-width: 900px;
}

.company__title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-white);
    margin-bottom: var(--space-xl);
}

@media (min-width: 768px) {
    .company__title {
        font-size: var(--text-5xl);
    }
}

.company__lead {
    font-size: var(--text-xl);
    color: var(--color-accent);
}

@media (min-width: 768px) {
    .company__lead {
        font-size: var(--text-2xl);
    }
}

.company__content {
    padding: var(--space-4xl) 0;
    background-color: var(--color-gray-100);
}

.values {
    display: grid;
    gap: var(--space-xl);
    margin-bottom: var(--space-4xl);
}

@media (min-width: 768px) {
    .values {
        grid-template-columns: repeat(3, 1fr);
    }
}

.value {
    padding: var(--space-2xl) 0;
}

.value__header {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.value__number {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent);
}

.value__line {
    flex: 1;
    height: 1px;
    background-color: var(--color-gray-300);
}

.value__title {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--space-md);
}

.value__text {
    font-size: var(--text-base);
    color: var(--color-gray-600);
    line-height: 1.7;
}

.certifications {
    padding: var(--space-2xl);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
}

.certifications__title {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--space-xl);
}

.certifications__list {
    display: grid;
    gap: var(--space-md);
}

@media (min-width: 768px) {
    .certifications__list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .certifications__list {
        grid-template-columns: repeat(4, 1fr);
    }
}

.certification {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.certification::before {
    content: '';
    width: 8px;
    height: 8px;
    background-color: var(--color-accent);
    flex-shrink: 0;
}

.certification__text {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

/* === CTA SECTION === */
.cta-section {
    position: relative;
    padding: var(--space-4xl) 0;
    overflow: hidden;
}

@media (min-width: 1024px) {
    .cta-section {
        padding: var(--space-5xl) 0;
    }
}

.cta-section__bg {
    position: absolute;
    inset: 0;
    background-color: var(--color-gray-900);
}

.cta-section__gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 50% 80% at 20% 50%, rgba(201, 162, 39, 0.15), transparent),
        radial-gradient(ellipse 40% 60% at 80% 80%, rgba(201, 162, 39, 0.1), transparent);
}

.cta-section__content {
    position: relative;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-section__label {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: var(--space-xl);
}

.cta-section__title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-white);
    margin-bottom: var(--space-xl);
}

@media (min-width: 768px) {
    .cta-section__title {
        font-size: var(--text-5xl);
    }
}

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

/* === CLIENTS === */
.clients {
    padding: var(--space-4xl) 0;
    background-color: var(--color-black);
    overflow: hidden;
}

@media (min-width: 1024px) {
    .clients {
        padding: var(--space-5xl) 0;
    }
}

.clients__header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.clients__label {
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-gray-500);
}

.clients__marquee {
    position: relative;
    width: 100%;
    overflow: hidden;
    mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.clients__track {
    display: flex;
    gap: var(--space-4xl);
    width: max-content;
    animation: marquee 30s linear infinite;
}

.clients__track:hover {
    animation-play-state: paused;
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.client-logo {
    flex-shrink: 0;
    width: 120px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
    transition: opacity var(--duration-base) var(--ease-out-expo),
                filter var(--duration-base) var(--ease-out-expo);
    filter: grayscale(100%) brightness(1.5);
}

@media (min-width: 768px) {
    .client-logo {
        width: 150px;
        height: 80px;
    }
}

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

.client-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.client-logo svg {
    width: 100%;
    height: 100%;
    color: var(--color-gray-400);
}

/* === CONTACT === */
.contact {
    padding: var(--space-4xl) 0;
    background-color: var(--color-white);
}

@media (min-width: 1024px) {
    .contact {
        padding: var(--space-5xl) 0;
    }
}

.contact__grid {
    display: grid;
    gap: var(--space-4xl);
}

@media (min-width: 1024px) {
    .contact__grid {
        grid-template-columns: 1fr 1.2fr;
        gap: var(--space-5xl);
    }
}

.contact__title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-gray-900);
    margin-bottom: var(--space-3xl);
}

@media (min-width: 768px) {
    .contact__title {
        font-size: var(--text-5xl);
    }
}

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

.contact__item {
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-gray-200);
}

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

.contact__value {
    font-size: var(--text-lg);
    color: var(--color-gray-900);
    transition: color var(--duration-fast);
}

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

/* === FORM === */
.contact__form-wrapper {
    padding: var(--space-2xl);
    background-color: var(--color-gray-100);
}

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

.form-row {
    display: grid;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

@media (min-width: 640px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

.form-group {
    position: relative;
    margin-bottom: var(--space-xl);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    margin-bottom: var(--space-sm);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-md) 0;
    font-family: inherit;
    font-size: var(--text-base);
    color: var(--color-gray-900);
    background-color: transparent;
    border: none;
    border-bottom: 1px solid var(--color-gray-300);
    transition: border-color var(--duration-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-gray-900);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--duration-base) var(--ease-out-expo);
}

.form-input:focus ~ .form-line,
.form-textarea:focus ~ .form-line {
    width: 100%;
}

.form-options {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.form-option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.form-option input {
    display: none;
}

.option__box {
    width: 20px;
    height: 20px;
    border: 1px solid var(--color-gray-400);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-fast);
}

.option__box::after {
    content: '';
    width: 10px;
    height: 10px;
    background-color: var(--color-accent);
    transform: scale(0);
    transition: transform var(--duration-fast);
}

.form-option input:checked ~ .option__box {
    border-color: var(--color-accent);
}

.form-option input:checked ~ .option__box::after {
    transform: scale(1);
}

.option__text {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.form-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    width: 100%;
    padding: var(--space-lg) var(--space-2xl);
    background-color: var(--color-gray-900);
    color: var(--color-white);
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: background-color var(--duration-fast);
}

.form-submit:hover {
    background-color: var(--color-black);
}

.submit__icon {
    width: 20px;
    height: 20px;
    transition: transform var(--duration-fast);
}

.submit__icon svg {
    width: 100%;
    height: 100%;
}

.form-submit:hover .submit__icon {
    transform: translate(4px, -4px);
}

/* === FOOTER === */
.footer {
    padding: var(--space-4xl) 0 var(--space-xl);
    background-color: var(--color-black);
}

.footer__main {
    display: grid;
    gap: var(--space-3xl);
    padding-bottom: var(--space-3xl);
    border-bottom: 1px solid var(--color-gray-800);
}

@media (min-width: 1024px) {
    .footer__main {
        grid-template-columns: 1.5fr 2fr;
    }
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
    .footer__logo {
        gap: var(--space-md);
    }
}

.footer__logo .logo__icon {
    width: 28px;
    height: 28px;
    color: var(--color-white);
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .footer__logo .logo__icon {
        width: 32px;
        height: 32px;
    }
}

.footer__logo .logo__text {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--color-white);
}

.footer__logo .logo__subtext {
    font-family: var(--font-display);
    font-size: 0.5rem;
    font-weight: 400;
    letter-spacing: 0.35em;
    color: var(--color-white);
    opacity: 0.7;
    margin-top: 2px;
}

@media (min-width: 768px) {
    .footer__logo .logo__text {
        font-size: var(--text-lg);
        letter-spacing: 0.2em;
    }

    .footer__logo .logo__subtext {
        font-size: 0.55rem;
        letter-spacing: 0.4em;
    }
}

.footer__tagline {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    line-height: 1.7;
}

.footer__nav {
    display: grid;
    gap: var(--space-2xl);
}

@media (min-width: 640px) {
    .footer__nav {
        grid-template-columns: repeat(3, 1fr);
    }
}

.footer__heading {
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

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

.footer__list li,
.footer__list a {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    transition: color var(--duration-fast);
}

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

.footer__bottom {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding-top: var(--space-xl);
}

@media (min-width: 640px) {
    .footer__bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

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

.footer__links {
    display: flex;
    gap: var(--space-lg);
}

.footer__links a {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    transition: color var(--duration-fast);
}

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

/* === WHATSAPP FLOTANTE === */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    background-color: #25D366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    z-index: 9999;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.whatsapp-float svg {
    width: 28px;
    height: 28px;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

@media (min-width: 768px) {
    .whatsapp-float {
        bottom: 2.5rem;
        right: 2.5rem;
        width: 64px;
        height: 64px;
    }

    .whatsapp-float svg {
        width: 32px;
        height: 32px;
    }
}

/* === ANIMATIONS === */
.reveal-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--duration-slower) var(--ease-out-expo),
                transform var(--duration-slower) var(--ease-out-expo);
}

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

.reveal-up[data-delay="1"] { transition-delay: 0.1s; }
.reveal-up[data-delay="2"] { transition-delay: 0.2s; }
.reveal-up[data-delay="3"] { transition-delay: 0.3s; }

.reveal-scale {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity var(--duration-slower) var(--ease-out-expo),
                transform var(--duration-slower) var(--ease-out-expo);
}

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

.reveal-text {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--duration-slow) var(--ease-out-expo),
                transform var(--duration-slow) var(--ease-out-expo);
}

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

/* === REDUCED MOTION === */
@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;
    }

    .cursor, .cursor-follower {
        display: none !important;
    }
}