/* ========================================
   KOTEC - Premium Corporate Landing Page
   Styles with CSS Animations & Responsive Design
   ======================================== */

/* ========================================
   CSS CUSTOM PROPERTIES (Variables)
   ======================================== */
:root {
    /* Brand Colors */
    --color-primary: #00C2FF;
    --color-secondary: #0FE3C6;
    --color-dark: #071028;
    --color-bg-light: #F7FAFC;
    --color-text-muted: #94A3B8;
    --color-white: #FFFFFF;
    --color-black: #000000;
    
    /* Status Colors */
    --color-success: #10B981;
    --color-error: #EF4444;
    --color-info: #3B82F6;
    
    /* Typography */
    --font-family: 'Montserrat', sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Z-index */
    --z-header: 1000;
    --z-whatsapp: 1001;
    --z-modal: 1002;
    --z-snippet: 1003;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-weight: var(--font-weight-regular);
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-bg-light);
    overflow-x: hidden;
}

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

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

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
    transition: all var(--transition-normal);
}

ul {
    list-style: none;
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-header);
    transition: all var(--transition-normal);
}

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

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav__logo-img {
    height: 50px;
    width: auto;
    transition: transform var(--transition-normal);
}

.nav__logo:hover .nav__logo-img {
    transform: scale(1.05);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-xs);
    background: transparent;
}

.nav__toggle-icon {
    width: 25px;
    height: 3px;
    background-color: var(--color-dark);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

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

.nav__link {
    font-weight: var(--font-weight-medium);
    color: var(--color-dark);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transition: transform var(--transition-normal);
}

.nav__link:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.nav__link--cta {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
}

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

.nav__link--cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
}

.btn--primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 194, 255, 0.3);
}

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

.btn--outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-3px);
}

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

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl);
    background: linear-gradient(135deg, rgba(7, 16, 40, 0.02) 0%, rgba(0, 194, 255, 0.05) 100%);
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero__content {
    max-width: 600px;
}

.hero__title {
    font-size: 3.5rem;
    font-weight: var(--font-weight-extrabold);
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--color-dark);
}

.hero__title--accent {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero__cta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero__image {
    position: relative;
}

.hero__img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* ========================================
   SECTION HEADERS
   ======================================== */
.section__header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section__title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

.section__description {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   SERVICES SECTION
   ======================================== */
.services {
    padding: var(--spacing-3xl) 0;
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.service-card__image-wrapper {
    height: 200px;
    overflow: hidden;
    position: relative;
}

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

.service-card:hover .service-card__image {
    transform: scale(1.1);
}

.service-card__content {
    padding: var(--spacing-lg);
}

.service-card__title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

.service-card__description {
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ========================================
   WHY US SECTION
   ======================================== */
.why-us {
    padding: var(--spacing-3xl) 0;
    background: var(--color-white);
}

.why-us__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.why-us__item {
    text-align: center;
    padding: var(--spacing-lg);
}

.why-us__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.why-us__item:hover .why-us__icon {
    transform: rotateY(360deg);
}

.why-us__title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

.why-us__description {
    color: var(--color-text-muted);
}

/* ========================================
   PORTFOLIO SECTION
   ======================================== */
.portfolio {
    padding: var(--spacing-3xl) 0;
}

.portfolio__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.portfolio-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.portfolio-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.portfolio-card__image-wrapper {
    height: 250px;
    overflow: hidden;
    position: relative;
    background: var(--color-bg-light);
}

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

.portfolio-card:hover .portfolio-card__image {
    transform: scale(1.1);
}

.portfolio-card__content {
    padding: var(--spacing-lg);
}

.portfolio-card__title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-dark);
}

.portfolio-card__description {
    color: var(--color-text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about {
    padding: var(--spacing-3xl) 0;
    background: var(--color-white);
}

.about__content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about__description {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about__list {
    margin-top: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.about__list-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-dark);
    font-weight: var(--font-weight-medium);
}

.about__list-item svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

.about__image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about__img {
    max-width: 400px;
    width: 100%;
    filter: drop-shadow(0 20px 40px rgba(0, 194, 255, 0.2));
}

/* ========================================
   PARTNERS SECTION
   ======================================== */
.partners {
    padding: var(--spacing-3xl) 0;
}

.partners__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.partner-card {
    position: relative;
    height: 300px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    display: flex;
    align-items: flex-end;
}

.partner-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.partner-card__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform var(--transition-slow);
}

.partner-card:hover .partner-card__bg {
    transform: scale(1.1);
}

.partner-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(7, 16, 40, 0.8), transparent);
    z-index: 1;
}

.partner-card__name {
    position: relative;
    z-index: 2;
    color: var(--color-white);
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    padding: var(--spacing-lg);
}

/* ========================================
   CONTACT FORM SECTION
   ======================================== */
.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--color-white);
}

.contact__wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.contact__form {
    background: var(--color-bg-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

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

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

.form__label {
    display: block;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
}

.form__required {
    color: var(--color-error);
}

.form__input,
.form__textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid #E2E8F0;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: all var(--transition-normal);
    background: var(--color-white);
}

.form__input:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.1);
}

.form__input.error,
.form__textarea.error {
    border-color: var(--color-error);
}

.form__error {
    display: block;
    color: var(--color-error);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
    min-height: 20px;
}

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

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    background-size: cover;
    background-position: center;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(7, 16, 40, 0.95);
    z-index: 0;
}

.footer .container {
    position: relative;
    z-index: 1;
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer__logo {
    max-width: 200px;
    margin-bottom: var(--spacing-md);
}

.footer__text {
    color: var(--color-text-muted);
    line-height: 1.8;
}

.footer__title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__link {
    color: var(--color-text-muted);
    transition: all var(--transition-normal);
}

.footer__link:hover {
    color: var(--color-primary);
    padding-left: var(--spacing-xs);
}

.footer__contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-muted);
}

.footer__contact-item svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

.footer__bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

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

/* ========================================
   WHATSAPP FLOATING BUTTON
   ======================================== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #25D366, #128C7E);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: var(--z-whatsapp);
    transition: all var(--transition-normal);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
}

.whatsapp-float svg {
    color: var(--color-white);
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6);
    }
}

/* ========================================
   STATUS SNIPPET
   ======================================== */
.status-snippet {
    position: fixed;
    top: 100px;
    right: 30px;
    max-width: 400px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    z-index: var(--z-snippet);
    transform: translateX(500px);
    transition: transform var(--transition-slow);
}

.status-snippet.show {
    transform: translateX(0);
}

.status-snippet.success {
    background-image: url('../img/snippets/success-bg.png');
    background-size: cover;
    background-position: center;
}

.status-snippet.error {
    background-image: url('../img/snippets/error-bg.png');
    background-size: cover;
    background-position: center;
}

.status-snippet.info {
    background-image: url('../img/snippets/info-bg.png');
    background-size: cover;
    background-position: center;
}

.status-snippet::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    z-index: 0;
}

.status-snippet__content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
}

.status-snippet.success .status-snippet__icon {
    color: var(--color-success);
}

.status-snippet.error .status-snippet__icon {
    color: var(--color-error);
}

.status-snippet.info .status-snippet__icon {
    color: var(--color-info);
}

.status-snippet__message {
    flex: 1;
    color: var(--color-dark);
    font-weight: var(--font-weight-medium);
}

.status-snippet__close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    z-index: 2;
    padding: var(--spacing-xs);
    color: var(--color-dark);
    opacity: 0.6;
    transition: opacity var(--transition-normal);
}

.status-snippet__close:hover {
    opacity: 1;
}

/* ========================================
   MODAL
   ======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
}

.modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal__content {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal__close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: var(--spacing-xs);
    color: var(--color-dark);
    transition: all var(--transition-normal);
}

.modal__close:hover {
    transform: rotate(90deg);
    color: var(--color-error);
}

.modal__title {
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--color-dark);
}

.modal__description {
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.modal__slider {
    position: relative;
    height: 400px;
    background: var(--color-bg-light);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.modal__slider img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}

.modal__slider img.active {
    display: block;
}

.modal__slider-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.modal__slider-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.modal__slider-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

/* ========================================
   SCROLL ANIMATIONS
   ======================================== */
[data-animate] {
    opacity: 0;
    transition: all 0.8s ease-out;
}

[data-animate="fade-up"] {
    transform: translateY(50px);
}

[data-animate="fade-down"] {
    transform: translateY(-50px);
}

[data-animate="fade-left"] {
    transform: translateX(-50px);
}

[data-animate="fade-right"] {
    transform: translateX(50px);
}

[data-animate].animated {
    opacity: 1;
    transform: translate(0, 0);
}

/* ========================================
   RESPONSIVE DESIGN - TABLET
   ======================================== */
@media (max-width: 992px) {
    :root {
        font-size: 15px;
    }
    
    .hero__container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .hero__title {
        font-size: 2.5rem;
    }
    
    .about__content {
        grid-template-columns: 1fr;
    }
    
    .section__title {
        font-size: 2rem;
    }
    
    .form__row {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   RESPONSIVE DESIGN - MOBILE
   ======================================== */
@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }
    
    .nav__toggle {
        display: flex;
    }
    
    .nav__menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: calc(100vh - 70px);
        background: var(--color-white);
        box-shadow: var(--shadow-xl);
        padding: var(--spacing-xl);
        transition: right var(--transition-slow);
    }
    
    .nav__menu.active {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
    }
    
    .hero {
        min-height: auto;
        padding: calc(80px + var(--spacing-lg)) 0 var(--spacing-lg);
    }
    
    .hero__title {
        font-size: 2rem;
    }
    
    .hero__cta {
        flex-direction: column;
    }
    
    .hero__cta .btn {
        width: 100%;
    }
    
    .services__grid,
    .portfolio__grid {
        grid-template-columns: 1fr;
    }
    
    .why-us__grid {
        grid-template-columns: 1fr;
    }
    
    .partners__grid {
        grid-template-columns: 1fr;
    }
    
    .footer__content {
        grid-template-columns: 1fr;
    }
    
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }
    
    .status-snippet {
        right: var(--spacing-sm);
        left: var(--spacing-sm);
        max-width: none;
    }
    
    .modal__slider {
        height: 250px;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 1.75rem;
    }
    
    .section__title {
        font-size: 1.75rem;
    }
    
    .contact__form {
        padding: var(--spacing-md);
    }
}

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

*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ========================================
   IMAGE LAZY LOADING PLACEHOLDER
   ======================================== */
img[loading="lazy"] {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

img[loading="lazy"].loaded {
    animation: none;
    background: transparent;
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
    .header,
    .whatsapp-float,
    .status-snippet,
    .modal {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
}