/* ===================================
   RESPONSIVE STYLES
   Mobile, Tablet, Desktop - Bootstrap Compatible
   =================================== */

/* === TABLET (max-width: 991px) === */
@media screen and (max-width: 991px) {
    html {
        scroll-padding-top: 90px;
    }

    .section[id] {
        scroll-margin-top: 90px;
    }

    .container {
        padding: 0 15px;
    }

    /* Header */
    .header-contact {
        gap: 8px;
        align-items: flex-end;
        font-size: 12px;
    }

    .header-content {
        flex-wrap: wrap;
    }

    .logo a {
        font-size: 24px;
    }

    .logo img {
        height: 40px;
    }

    /* Hero */
    .hero-section {
        padding: 60px 0;
    }

    .hero-layout {
        grid-template-columns: 1fr;
        gap: 34px;
    }

    .hero-content {
        text-align: center;
    }

    .hero-eyebrow,
    .hero-buttons,
    .hero-proof {
        justify-content: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-visual {
        min-height: 360px;
    }

    .hero-sphere {
        width: min(58vw, 330px);
    }

    .hero-visual-label {
        right: 8%;
        bottom: 10px;
    }

    .main-nav .navbar-collapse {
        background: #171b18;
        border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .navbar-toggler {
        color: var(--white);
    }

    .hero-title {
        font-size: clamp(39px, 12vw, 56px);
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-tagline {
        font-size: 16px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-proof {
        gap: 20px;
        margin-top: 38px;
    }

    .hero-proof strong {
        font-size: 19px;
    }

    .hero-proof span {
        font-size: 10px;
    }

    .btn {
        padding: 12px 28px;
        font-size: 14px;
    }

    /* Sections */
    .section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 32px;
    }

    .section-subtitle {
        font-size: 16px;
        margin-bottom: 40px;
    }

    /* Cards */
    .cards-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .card {
        padding: 30px 20px;
    }

    .card-icon {
        width: 60px;
        height: 60px;
        font-size: 28px;
    }

    .card-title {
        font-size: 20px;
    }

    .card-description {
        font-size: 14px;
    }

    /* Footer */
    .footer-columns {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    /* Sections */
    .section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 32px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    /* Cards */
    .cards-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* Footer */
    .footer-columns {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .scroll-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
        font-size: 18px;
    }
}

/* === MOBILE (max-width: 576px) === */
@media screen and (max-width: 576px) {
    .header-top {
        display: none;
    }

    .logo a {
        font-size: 20px;
    }

    .logo img {
        height: 35px;
    }

    .hero-title {
        font-size: clamp(38px, 12vw, 52px);
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-tagline {
        font-size: 14px;
    }

    .section-title {
        font-size: 26px;
    }

    .section-subtitle {
        font-size: 14px;
    }

    .btn {
        padding: 10px 24px;
        font-size: 13px;
    }

    .cards-grid {
        gap: 15px;
    }

    .footer-content {
        padding: 40px 0 30px;
    }

    .footer-column h3 {
        font-size: 18px;
    }
}

/* === LARGE DESKTOP (min-width: 1400px) === */
@media screen and (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }

    .hero-title {
        font-size: 78px;
    }

    .hero-subtitle {
        font-size: 28px;
    }

    .section-title {
        font-size: 48px;
    }

    .cards-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* === ACCESSIBILITY === */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* === PRINT === */
@media print {
    .site-header,
    .site-footer,
    .scroll-to-top,
    .hero-buttons {
        display: none;
    }

    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }

    a {
        color: #000;
        text-decoration: underline;
    }
}