/* ============================================
   VISIBILITY LABS - MAIN STYLESHEET
   ============================================ */

/* CSS Custom Properties (Variables) */
:root {
    /* Colors */
    --color-primary: #4F46E5;
    --color-primary-dark: #4338CA;
    --color-primary-light: #6366F1;
    --color-dark: #170F49;
    --color-gray-900: #1F2937;
    --color-gray-700: #374151;
    --color-gray-600: #4B5563;
    --color-gray-500: #6B7280;
    --color-gray-400: #9CA3AF;
    --color-gray-200: #E5E7EB;
    --color-gray-100: #F3F4F6;
    --color-gray-50: #F9FAFB;
    --color-white: #FFFFFF;
    --color-star: #FFC107;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    --gradient-text: linear-gradient(135deg, var(--color-primary) 0%, #818CF8 100%);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Layout */
    --container-max: 1200px;
    --header-height: 80px;
}

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

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

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-700);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--color-dark);
    font-weight: 700;
    line-height: 1.2;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

.text-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

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

.btn--primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn--outline {
    background: transparent;
    border-color: var(--color-gray-200);
    color: var(--color-dark);
}

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

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

.btn--white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn--large {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-lg);
}

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

/* ============================================
   SECTION TITLES
   ============================================ */

.section__title {
    font-size: var(--font-size-4xl);
    text-align: center;
    margin-bottom: var(--spacing-4);
}

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

.section__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-500);
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-12);
}

.section__subtitle--light {
    color: var(--color-gray-400);
}

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-100);
    z-index: 1000;
    transition: all var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav__logo img {
    height: 36px;
    width: auto;
}

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

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
}

.nav__link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    transition: color var(--transition-fast);
}

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

.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.nav__toggle,
.nav__close {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-dark);
}

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

.hero {
    padding-top: calc(var(--header-height) + var(--spacing-16));
    padding-bottom: var(--spacing-20);
    background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: center;
}

.hero__title {
    font-size: var(--font-size-5xl);
    line-height: 1.1;
    margin-bottom: var(--spacing-6);
}

.hero__description {
    font-size: var(--font-size-xl);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-8);
    max-width: 540px;
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-10);
}

.hero__platforms {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
}

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

.hero__platforms-logos {
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
    opacity: 0.6;
}

.hero__platforms-logos img {
    height: 24px;
    width: auto;
    filter: grayscale(100%);
    transition: filter var(--transition-base);
}

.hero__platforms-logos img:hover {
    filter: grayscale(0%);
}

.hero__media {
    position: relative;
}

.hero__video-wrapper {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.hero__video-thumbnail {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.hero__play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-full);
    color: var(--color-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.hero__play-btn:hover {
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: var(--shadow-xl);
}

.hero__play-btn svg {
    margin-left: 4px;
}

/* ============================================
   TRUSTED BY SECTION
   ============================================ */

.trusted {
    padding: var(--spacing-16) 0;
    background: var(--color-gray-50);
}

.trusted__label {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-8);
}

.trusted__logos {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-12);
}

.trusted__logos img {
    height: 40px;
    width: auto;
    filter: grayscale(100%);
    opacity: 0.5;
    transition: all var(--transition-base);
}

.trusted__logos img:hover {
    filter: grayscale(0%);
    opacity: 1;
}

/* ============================================
   STATS SECTION
   ============================================ */

.stats {
    padding: var(--spacing-24) 0;
}

.stats__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-12);
    margin-top: var(--spacing-12);
}

.stat {
    text-align: center;
}

.stat__number {
    font-size: var(--font-size-6xl);
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.stat__suffix {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-primary);
}

.stat__title {
    font-size: var(--font-size-2xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-2);
}

.stat__description {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    max-width: 280px;
    margin: var(--spacing-4) auto 0;
}

.stat--icon .stat__icon {
    width: 80px;
    height: 80px;
    background: rgba(79, 70, 229, 0.1);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-4);
    color: var(--color-primary);
}

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

.services {
    padding: var(--spacing-24) 0;
    background: var(--color-gray-50);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-8);
}

.service-card {
    background: var(--color-white);
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-slow);
    border: 1px solid var(--color-gray-100);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.service-card__icon {
    width: 64px;
    height: 64px;
    background: rgba(79, 70, 229, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-6);
    color: var(--color-primary);
    transition: all var(--transition-base);
}

.service-card:hover .service-card__icon {
    background: var(--color-primary);
    color: var(--color-white);
}

.service-card__title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-3);
}

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

/* ============================================
   CASE STUDIES SECTION
   ============================================ */

.case-studies {
    padding: var(--spacing-24) 0;
}

.case-studies__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-8);
}

.case-study-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-slow);
    border: 1px solid var(--color-gray-100);
}

.case-study-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.case-study-card__image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.case-study-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.case-study-card:hover .case-study-card__image img {
    transform: scale(1.05);
}

.case-study-card__content {
    padding: var(--spacing-6);
}

.case-study-card__title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2);
}

.case-study-card__meta {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ============================================
   PROCESS SECTION
   ============================================ */

.process {
    padding: var(--spacing-24) 0;
    background: var(--color-dark);
}

.process__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-8);
}

.process-step {
    text-align: center;
    position: relative;
}

.process-step::after {
    content: '';
    position: absolute;
    top: 45px;
    right: -16px;
    width: calc(100% - 90px);
    height: 2px;
    background: rgba(255, 255, 255, 0.2);
}

.process-step:last-child::after {
    display: none;
}

.process-step__number {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--color-primary);
    background: var(--color-white);
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.process-step__icon {
    width: 72px;
    height: 72px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-6);
    color: var(--color-white);
}

.process-step__title {
    font-size: var(--font-size-lg);
    color: var(--color-white);
    margin-bottom: var(--spacing-3);
}

.process-step__description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
    line-height: 1.7;
}

/* ============================================
   ADVANTAGES SECTION
   ============================================ */

.advantages {
    padding: var(--spacing-24) 0;
}

.advantages__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-8);
}

.advantage-card {
    text-align: center;
    padding: var(--spacing-6);
}

.advantage-card__icon {
    width: 56px;
    height: 56px;
    background: rgba(79, 70, 229, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-5);
    color: var(--color-primary);
}

.advantage-card__title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-3);
}

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

/* ============================================
   FOUNDER SECTION
   ============================================ */

.founder {
    padding: var(--spacing-24) 0;
    background: var(--color-gray-50);
}

.founder__grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: var(--spacing-16);
    align-items: center;
}

.founder__image img {
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

.founder__name {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-2);
}

.founder__title {
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-8);
}

.founder__stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.founder__stats li {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
}

.founder__stats li svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */

.testimonials {
    padding: var(--spacing-24) 0;
}

.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-8);
}

.testimonial-card {
    background: var(--color-white);
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-gray-100);
}

.testimonial-card__stars {
    display: flex;
    gap: var(--spacing-1);
    color: var(--color-star);
    margin-bottom: var(--spacing-5);
}

.testimonial-card__quote {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    font-style: italic;
    line-height: 1.8;
    margin-bottom: var(--spacing-6);
}

.testimonial-card__name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-dark);
}

.testimonial-card__role {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta {
    padding: var(--spacing-24) 0;
    background: var(--gradient-primary);
    text-align: center;
}

.cta__title {
    font-size: var(--font-size-4xl);
    color: var(--color-white);
    margin-bottom: var(--spacing-4);
}

.cta__description {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.contact {
    padding: var(--spacing-24) 0;
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-16);
}

.contact__title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-4);
}

.contact__description {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-8);
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.contact__details li {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    color: var(--color-gray-600);
}

.contact__details li svg {
    color: var(--color-primary);
}

.contact__details a:hover {
    color: var(--color-primary);
}

.contact__form {
    background: var(--color-white);
    padding: var(--spacing-10);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-gray-100);
}

.form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4);
}

.form__group {
    margin-bottom: var(--spacing-5);
}

.form__label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-2);
}

.form__input,
.form__textarea {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-base);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    background: var(--color-white);
}

.form__input:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form__textarea {
    resize: vertical;
    min-height: 120px;
}

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

.footer {
    background: var(--color-dark);
    padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--spacing-12);
    padding-bottom: var(--spacing-12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__logo img {
    height: 30px;
    width: auto;
    margin-bottom: var(--spacing-4);
}

.footer__tagline {
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
}

.footer__nav-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-5);
}

.footer__nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.footer__nav-list a {
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
    transition: color var(--transition-fast);
}

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

.footer__social-links {
    display: flex;
    gap: var(--spacing-3);
}

.footer__social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    transition: all var(--transition-fast);
}

.footer__social-links a:hover {
    background: var(--color-primary);
}

.footer__bottom {
    padding-top: var(--spacing-8);
    text-align: center;
}

.footer__bottom p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
    }

    .hero__container {
        grid-template-columns: 1fr;
        gap: var(--spacing-12);
    }

    .hero__content {
        text-align: center;
    }

    .hero__description {
        margin-left: auto;
        margin-right: auto;
    }

    .hero__buttons {
        justify-content: center;
    }

    .hero__platforms {
        flex-direction: column;
    }

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

    .process__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-12);
    }

    .process-step::after {
        display: none;
    }

    .founder__grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .founder__image {
        max-width: 300px;
        margin: 0 auto;
    }

    .founder__stats {
        align-items: center;
    }

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

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

/* Mobile */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
    }

    .nav__actions .btn {
        display: none;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-white);
        padding: var(--spacing-20) var(--spacing-8);
        flex-direction: column;
        box-shadow: var(--shadow-2xl);
        transition: right var(--transition-slow);
        z-index: 1001;
    }

    .nav__menu.active {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        gap: var(--spacing-6);
    }

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

    .nav__close {
        display: flex;
        position: absolute;
        top: var(--spacing-6);
        right: var(--spacing-6);
    }

    .hero {
        padding-top: calc(var(--header-height) + var(--spacing-8));
    }

    .hero__buttons {
        flex-direction: column;
    }

    .stats__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-10);
    }

    .services__grid,
    .case-studies__grid,
    .testimonials__grid,
    .advantages__grid {
        grid-template-columns: 1fr;
    }

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

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

    .footer__grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer__social-links {
        justify-content: center;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-4);
    }

    .section__title {
        font-size: var(--font-size-2xl);
    }

    .hero__title {
        font-size: var(--font-size-3xl);
    }

    .stat__number {
        font-size: var(--font-size-4xl);
    }

    .contact__form {
        padding: var(--spacing-6);
    }
}

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

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

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

/* Reduced motion preference */
@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;
    }
}