/* ================================
   Responsive Design - Mobile First
   ================================ */

/* ================================
   Large Desktop (1280px+)
   ================================ */

@media (min-width: 1280px) {
    :root {
        --container-max-width: 1280px;
        --font-size-5xl: 3.5rem;
    }

    .hero__title {
        font-size: 4rem;
    }
}

/* ================================
   Desktop (1024px - 1279px)
   ================================ */

@media (max-width: 1279px) {
    :root {
        --container-max-width: 1024px;
        --font-size-5xl: 2.75rem;
    }
}

/* ================================
   Tablet (768px - 1023px)
   ================================ */

@media (max-width: 1023px) {
    :root {
        --container-padding: 1.5rem;
        --spacing-3xl: 4rem;
        --font-size-4xl: 2rem;
        --font-size-5xl: 2.5rem;
    }

    /* Hero Section */
    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .hero__visual {
        order: -1;
    }

    .hero__title {
        font-size: 2.5rem;
    }

    /* Demo Section */
    .demo__content {
        grid-template-columns: 1fr;
    }

    .demo__info {
        position: static;
    }

    /* Benefits Grid - 3 colunas em tablet (3 cards na primeira linha, 2 na segunda) */
    .benefits__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Contact Section */
    .contact__wrapper {
        grid-template-columns: 1fr;
    }

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

    /* Footer */
    .footer__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

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

/* ================================
   Mobile Large (640px - 767px)
   ================================ */

@media (max-width: 767px) {
    :root {
        --container-padding: 1rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 3rem;
        --font-size-3xl: 1.75rem;
        --font-size-4xl: 1.875rem;
        --font-size-5xl: 2rem;
    }

    /* Typography */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }

    section {
        padding: var(--spacing-2xl) 0;
    }

    /* Navigation */
    .nav {
        padding: var(--spacing-sm) 0;
    }

    .nav__toggle {
        display: flex;
        z-index: 1001;
    }

    .nav__menu {
        position: fixed !important;
        top: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        width: 85% !important;
        max-width: 320px !important;
        background: #1E293B !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        padding: var(--spacing-lg) !important;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3) !important;
        transform: translateX(100%) !important;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
        gap: 0 !important;
        z-index: 1001 !important;
        border-left: 1px solid rgba(255, 255, 255, 0.1) !important;
    }

    .nav__close {
        display: flex !important;
        position: absolute;
        top: var(--spacing-md);
        right: var(--spacing-md);
        background: transparent;
        border: none;
        color: var(--color-text);
        cursor: pointer;
        padding: var(--spacing-sm);
        align-items: center;
        justify-content: center;
        border-radius: var(--radius-md);
        transition: all var(--transition-fast);
        z-index: 10;
    }

    .nav__close:hover {
        background: rgba(255, 255, 255, 0.1);
        transform: rotate(90deg);
    }

    .nav__close:active {
        transform: rotate(90deg) scale(0.95);
    }

    .nav__menu.active {
        transform: translateX(0) !important;
        background: #1E293B !important;
    }

    body.light-mode .nav__menu {
        background: #F9FAFB !important;
    }

    body.light-mode .nav__menu.active {
        transform: translateX(0) !important;
        background: #F9FAFB !important;
    }

    .nav__menu.active {
        transform: translateX(0);
    }

    .nav__item {
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        background: inherit !important;
    }

    .nav__item:first-child {
        margin-top: 48px;
    }

    .nav__item:last-child {
        border-bottom: none;
    }

    .nav__link {
        display: block;
        width: 100%;
        padding: var(--spacing-md) var(--spacing-lg);
        background: transparent !important;
        border-radius: var(--radius-md);
        margin: var(--spacing-xs) 0;
        transition: all var(--transition-fast);
        font-size: var(--font-size-lg);
    }

    .nav__link:hover {
        background: rgba(255, 255, 255, 0.08) !important;
        padding-left: calc(var(--spacing-lg) + 8px);
        color: var(--color-primary);
    }

    .nav__link--active {
        background: rgba(93, 172, 189, 0.15) !important;
        color: var(--color-primary);
        font-weight: var(--font-weight-semibold);
    }

    body.light-mode .nav__item {
        background: #F9FAFB !important;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    body.light-mode .nav__link:hover {
        background: rgba(93, 172, 189, 0.1) !important;
    }

    .nav__link--cta {
        margin-top: var(--spacing-md);
        background: var(--gradient-primary) !important;
        color: white !important;
        padding: var(--spacing-md) var(--spacing-lg) !important;
        border-radius: var(--radius-md);
    }

    /* Prevent scroll when menu is open */
    body.menu-open {
        overflow: hidden;
    }

    /* Menu overlay */
    .nav__overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1000;
    }

    .nav__overlay.active {
        display: block;
    }

    /* Hero Section */
    .hero {
        min-height: auto;
        padding-top: 80px;
        padding-bottom: var(--spacing-3xl);
    }

    .hero__title {
        font-size: 2rem;
        line-height: 1.2;
    }

    .hero__subtitle {
        font-size: var(--font-size-base);
    }

    .hero__cta {
        flex-direction: column;
        width: 100%;
    }

    .hero__cta .btn {
        width: 100%;
    }

    .hero__scroll-indicator {
        display: none;
    }

    /* Benefits Grid */
    .benefits__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    /* Solutions Grid */
    .solutions__grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    /* Trust Stats */
    .trust__stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .stat-card {
        padding: var(--spacing-md);
    }

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

    /* Demo Section */
    .demo__form-wrapper {
        padding: var(--spacing-md);
    }

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

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

    /* Contact Info */
    .contact__info {
        grid-template-columns: 1fr;
    }

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

    /* Footer */
    .footer {
        padding: var(--spacing-2xl) 0 var(--spacing-md);
    }

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

    /* Modal */
    .modal__content {
        padding: var(--spacing-lg);
        margin: var(--spacing-sm);
    }

    /* Buttons */
    .btn--large {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-base);
    }
}

/* ================================
   Mobile Small (375px - 639px)
   ================================ */

@media (max-width: 639px) {
    :root {
        --container-padding: 1rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 1.5rem;
        --font-size-lg: 1rem;
    }

    .nav__logo {
        height: 32px;
    }

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

    .hero__title {
        font-size: 1.75rem;
    }

    .section__title {
        font-size: 1.75rem;
    }

    .section__subtitle {
        font-size: var(--font-size-base);
    }

    .benefit-card,
    .solution-card {
        padding: var(--spacing-lg);
    }

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

/* ================================
   Mobile Extra Small (< 375px)
   ================================ */

@media (max-width: 374px) {
    :root {
        --container-padding: 0.75rem;
        --spacing-sm: 0.75rem;
        --spacing-md: 0.875rem;
    }

    .hero__title {
        font-size: 1.5rem;
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

/* ================================
   Landscape Mobile
   ================================ */

@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding-top: 80px;
        padding-bottom: var(--spacing-xl);
    }

    .hero .container {
        grid-template-columns: 1fr 1fr;
    }

    .hero__visual {
        order: 0;
    }

    section {
        padding: var(--spacing-xl) 0;
    }
}

/* ================================
   Print Styles
   ================================ */

@media print {
    *,
    *::before,
    *::after {
        background: transparent !important;
        color: #000 !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }

    a,
    a:visited {
        text-decoration: underline;
    }

    .header,
    .nav__toggle,
    .hero__cta,
    .footer__social,
    .modal,
    .btn {
        display: none;
    }

    .hero,
    section {
        padding: 1rem 0;
    }

    h2, h3 {
        page-break-after: avoid;
    }

    img {
        max-width: 100% !important;
    }

    p, h2, h3 {
        orphans: 3;
        widows: 3;
    }
}

/* ================================
   Accessibility - High Contrast
   ================================ */

@media (prefers-contrast: high) {
    :root {
        --color-text: #000000;
        --color-text-light: #333333;
        --color-border: #000000;
    }

    .btn--primary {
        border: 2px solid #000000;
    }

    a {
        text-decoration: underline;
    }
}

/* ================================
   Dark Mode (Future Enhancement)
   ================================ */

@media (prefers-color-scheme: dark) {
    /*
    Prepared for future dark mode implementation
    Uncomment and customize when needed
    */

    /*
    :root {
        --color-text: #F9FAFB;
        --color-text-light: #D1D5DB;
        --color-background: #111827;
        --color-background-light: #1F2937;
        --color-background-gray: #374151;
    }
    */
}

/* ================================
   Touch Device Optimizations
   ================================ */

@media (hover: none) and (pointer: coarse) {
    /* Increase touch target sizes */
    .btn {
        min-height: 44px;
        min-width: 44px;
    }

    .nav__link {
        padding: var(--spacing-md);
    }

    .form__input,
    .form__select,
    .form__textarea {
        font-size: 16px; /* Prevent zoom on iOS */
    }

    /* Disable hover effects on touch devices */
    .benefit-card:hover,
    .solution-card:hover,
    .hover-lift:hover {
        transform: none;
    }

    /* But keep active states */
    .btn:active {
        transform: scale(0.98);
    }
}

/* ================================
   Container Queries (Modern Browsers)
   ================================ */

@supports (container-type: inline-size) {
    .solutions__grid {
        container-type: inline-size;
    }

    @container (min-width: 600px) {
        .solution-card {
            display: grid;
            grid-template-columns: auto 1fr;
            gap: var(--spacing-md);
        }

        .solution-card__icon {
            grid-row: span 3;
        }
    }
}

/* ================================
   Safe Area Insets (for notched devices)
   ================================ */

@supports (padding: max(0px)) {
    .container {
        padding-left: max(var(--container-padding), env(safe-area-inset-left));
        padding-right: max(var(--container-padding), env(safe-area-inset-right));
    }

    .header {
        padding-top: env(safe-area-inset-top);
    }

    .footer {
        padding-bottom: max(var(--spacing-md), env(safe-area-inset-bottom));
    }
}