/* ============================================================
   Sahrang Medtech — Global Stylesheet  (style.css)
   Shared across every page of the site.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@600;700;800&display=swap');

/* ── CSS Custom Properties ─────────────────────────────────── */
:root {
    /* Brand palette */
    --primary-blue:    #1160B7;
    --secondary-blue:  #0d4f9e;
    --pressed-blue:    #002050;
    --light-blue:      #B1D6F0;
    --dark-blue:       #002050;

    /* Semantic aliases */
    --accent-teal:     #1160B7;
    --medical-green:   #1160B7;
    --accent-cyan:     #1160B7;
    --warning-orange:  #CA5010;
    --error-red:       #A4262C;

    /* Text */
    --text-primary:    #002050;
    --text-secondary:  #3a5070;
    --text-light:      #ffffff;

    /* Surfaces */
    --surface-white:   #ffffff;
    --surface-light:   #DFE2E8;
    --surface-medium:  #DFE2E8;
    --surface-dark:    #002050;

    /* Borders & shadows */
    --border-color:    #DFE2E8;
    --border-dark:     #b0b8c8;
    --shadow-light:    0 0 2px rgba(0,32,80,.10), 0 1px 2px rgba(0,32,80,.12);
    --shadow-medium:   0 0 2px rgba(0,32,80,.10), 0 4px 8px rgba(0,32,80,.12);
    --shadow-heavy:    0 0 8px rgba(0,32,80,.10), 0 14px 28px rgba(0,32,80,.14);

    /* Radii (set to 2px for Microsoft-sharp look) */
    --border-radius-sm: 2px;
    --border-radius-md: 2px;
    --border-radius-lg: 2px;
    --border-radius-xl: 2px;

    /* Layout */
    --navbar-height: 48px;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1160B7, #002050);
}


/* ── Reset ──────────────────────────────────────────────────── */
*  { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont,
                 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    overflow-x: hidden;
    background: var(--surface-white);
    padding-top: var(--navbar-height);
    -webkit-font-smoothing: antialiased;
    font-size: 16px;
}


/* ── Layout helper ──────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }


/* ── NAVBAR ─────────────────────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: #ffffff;
    border-bottom: 1px solid #DFE2E8;
    z-index: 1001;
    height: var(--navbar-height);
    transition: transform 0.3s ease, box-shadow 0.2s;
}

.navbar.nav-hidden  { transform: translateY(-100%); }
.navbar.nav-visible { transform: translateY(0); }

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    height: 100%;
    gap: 0;
    position: relative;
}

/* Logo */
.logo {
    font-family: 'Segoe UI', sans-serif;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--dark-blue);
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.01em;
    margin-right: 2rem;
    white-space: nowrap;
    text-decoration: none;
}

/* Desktop links */
.nav-links { display: flex; list-style: none; gap: 0; flex: 1; }

.nav-links a {
    text-decoration: none;
    color: var(--dark-blue);
    font-size: 0.9375rem;
    font-weight: 400;
    padding: 0 0.875rem;
    height: var(--navbar-height);
    display: flex;
    align-items: center;
    position: relative;
    transition: color 0.1s, background 0.1s;
    white-space: nowrap;
}

.nav-links a::after { display: none; }
.nav-links a:hover  { color: var(--primary-blue); background: none; }

/* Right-side controls */
.nav-right { display: flex; align-items: center; gap: 0.25rem; margin-left: auto; }

.nav-icon-btn {
    background: none;
    border: none;
    color: var(--dark-blue);
    font-size: 0.9375rem;
    font-weight: 400;
    padding: 0 0.75rem;
    height: var(--navbar-height);
    display: flex;
    align-items: center;
    gap: 0.375rem;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    transition: color 0.1s;
    font-family: inherit;
}

.nav-icon-btn:hover { color: var(--primary-blue); }
.nav-icon-btn i     { font-size: 1rem; }

.theme-toggle-btn {
    border: 1px solid transparent;
    border-radius: 3px;
    padding: 0 0.65rem;
    font-weight: 400;
    font-size: 0.875rem;
}

.theme-toggle-btn:hover {
    border-color: var(--border-color);
    background: var(--surface-light);
}

.theme-toggle-desktop {
    width: 32px;
    height: 32px;
    min-height: 32px;
    padding: 0;
    justify-content: center;
    border-color: var(--border-color);
    border-radius: 2px;
    margin-left: 0.5rem;
}

.theme-toggle-desktop i {
    font-size: 0.95rem;
}

.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;
}

.theme-toggle-mobile {
    width: 100%;
    justify-content: flex-start;
    height: auto;
    padding: 0.75rem 1.5rem;
    border-radius: 0;
    border: none;
}

.theme-toggle-mobile:hover {
    background: #EBF4FB;
}

.nav-divider { width: 1px; height: 16px; background: #DFE2E8; margin: 0 0.25rem; }

/* CTA button in nav */
.nav-cta {
    background: var(--primary-blue);
    color: white !important;
    padding: 0.375rem 1rem;
    border-radius: 2px;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    transition: background 0.1s;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    cursor: pointer;
    font-family: inherit;
    height: 32px;
}

.nav-cta:hover { background: var(--pressed-blue) !important; color: white !important; }

/* Hamburger */
.hamburger {
    display: none;
    font-size: 1.125rem;
    background: none;
    border: none;
    color: var(--dark-blue);
    cursor: pointer;
    z-index: 1002;
    padding: 0.5rem;
    margin-left: auto;
}

/* Mobile dropdown */
.nav-links-mobile {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: #ffffff;
    flex-direction: column;
    padding: 0.5rem 0;
    box-shadow: 0 4px 16px rgba(0,32,80,0.12);
    border-top: 1px solid var(--border-color);
    list-style: none;
    z-index: 1003;
}

.nav-links-mobile.active { display: flex; }
.nav-links-mobile li     { margin: 0; }

.nav-links-mobile a {
    display: block;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    text-decoration: none;
    color: var(--dark-blue);
    transition: background 0.1s, color 0.1s;
}

.nav-links-mobile a:hover { background: #EBF4FB; color: var(--primary-blue); }

.nav-links-mobile .nav-cta {
    display: inline-flex;
    margin: 0.75rem 1.5rem;
    height: 36px;
}


/* ── Shared Buttons ─────────────────────────────────────────── */
.btn-primary {
    background: var(--primary-blue);
    color: white;
    padding: 0.6875rem 1.5rem;
    border: 1px solid var(--primary-blue);
    border-radius: var(--border-radius-sm);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.1s, border-color 0.1s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-height: 44px;
    font-family: inherit;
}

.btn-primary:hover,
.btn-primary:active { background: var(--pressed-blue); border-color: var(--pressed-blue); }

.btn-secondary {
    background: transparent;
    color: var(--primary-blue);
    padding: 0.6875rem 0.25rem;
    border: none;
    border-radius: 0;
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: color 0.1s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-height: 44px;
    font-family: inherit;
}

.btn-secondary:hover { background: transparent; color: var(--pressed-blue); }
.btn-secondary:hover .btn-secondary-text { text-decoration: underline; }

.btn-secondary-arrow {
    display: inline-flex;
    align-items: center;
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.btn-secondary:hover .btn-secondary-arrow { transform: translateX(5px); }


/* ── Section header (shared across pages) ───────────────────── */
.section-header { text-align: center; margin-bottom: 3.5rem; }

.section-badge {
    display: inline-block;
    background: var(--dark-blue);
    color: #fff;
    padding: 0.45rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 1rem;
    border-radius: 3px;
}

.section-title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 0.875rem;
    color: var(--dark-blue);
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    max-width: 580px;
    margin: 0 auto;
    line-height: 1.7;
}


/* ── FOOTER — Microsoft style ───────────────────────────────── */
.site-footer { background: #ffffff; border-top: 1px solid #DFE2E8; }

.footer-main { background: #f2f2f2; padding: 2.5rem 0 1.5rem; }

.footer-main .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
}

.footer-col h4 {
    font-size: 0.8125rem;
    font-weight: 600;
    color: #002050;
    margin-bottom: 0.875rem;
    letter-spacing: 0;
}

.footer-col ul              { list-style: none; }
.footer-col ul li           { margin-bottom: 0.5rem; }
.footer-col ul li a         { font-size: 0.8125rem; color: #444; text-decoration: none; transition: color 0.1s; line-height: 1.5; }
.footer-col ul li a:hover   { color: var(--primary-blue); text-decoration: underline; }

/* Bottom bar */
.footer-bottom              { background: #f2f2f2; border-top: 1px solid #DFE2E8; padding: 0.875rem 0; }
.footer-bottom .container   { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem; }
.footer-bottom-left         { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; }
.footer-bottom-right        { display: flex; align-items: center; gap: 1.25rem; flex-wrap: wrap; }

.footer-lang-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8125rem;
    color: #444;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    padding: 0;
    transition: color 0.1s;
}

.footer-lang-btn:hover { color: var(--primary-blue); }
.footer-lang-btn i     { font-size: 1rem; color: #555; }

.footer-privacy-toggle { display: flex; align-items: center; gap: 0.4rem; font-size: 0.8125rem; color: #444; cursor: pointer; }
.footer-privacy-toggle:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Microsoft toggle switch */
.ms-toggle {
    width: 28px;
    height: 16px;
    border: 2px solid var(--primary-blue);
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    padding: 1px;
    position: relative;
    background: #fff;
    flex-shrink: 0;
}

.ms-toggle-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary-blue);
    position: absolute;
    left: 2px;
    transition: left 0.2s;
}

.ms-toggle.is-on .ms-toggle-dot {
    left: 14px;
}

.footer-bottom-link         { font-size: 0.8125rem; color: #444; text-decoration: none; transition: color 0.1s; }
.footer-bottom-link:hover   { color: var(--primary-blue); text-decoration: underline; }
.footer-copyright           { font-size: 0.8125rem; color: #444; white-space: nowrap; }


/* ── Back to Top — Microsoft style ─────────────────────────── */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: #ffffff;
    color: var(--dark-blue);
    border: 1px solid #DFE2E8;
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
    font-weight: 400;
    font-family: 'Segoe UI', sans-serif;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
    transition: opacity 0.2s ease, transform 0.2s ease, background 0.1s, color 0.1s;
    box-shadow: 0 2px 8px rgba(0,32,80,0.10);
    text-decoration: none;
}

.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover   { background: #EBF4FB; color: var(--primary-blue); border-color: var(--light-blue); }

.back-to-top .btt-arrow { display: flex; align-items: center; justify-content: center; width: 14px; height: 14px; position: relative; }

.back-to-top .btt-arrow::before {
    content: '';
    display: block;
    width: 7px;
    height: 7px;
    border-top: 1.5px solid currentColor;
    border-left: 1.5px solid currentColor;
    transform: rotate(45deg) translateY(2px);
}


/* ── Media Carousel Controls — Microsoft style ──────────────── */
.ms-controls   { display: flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 1rem 0; }
.ms-ctrl-btn   { background: none; border: none; cursor: pointer; color: #002050; display: flex; align-items: center; justify-content: center; padding: 0.25rem; transition: color 0.1s; }
.ms-ctrl-btn:hover { color: var(--primary-blue); }

.ms-icon-pause { width: 22px; height: 22px; border: 1.5px solid currentColor; border-radius: 50%; display: flex; align-items: center; justify-content: center; gap: 3px; }
.ms-icon-pause span { width: 2.5px; height: 9px; background: currentColor; border-radius: 1px; display: block; }

.ms-icon-chevron { font-size: 0.875rem; color: currentColor; }

.ms-dot       { width: 8px; height: 8px; border-radius: 50%; background: #b0b8c8; border: none; cursor: pointer; padding: 0; transition: background 0.15s; }
.ms-dot.active { background: var(--dark-blue); }
.ms-dot:hover  { background: var(--primary-blue); }


/* ── Fluent icon helpers ────────────────────────────────────── */
.fluent-icon              { display: inline-block; width: 1em; height: 1em; vertical-align: -0.125em; flex-shrink: 0; }
.fluent-icon-white        { filter: brightness(0) invert(1); }
.fluent-icon-blue         { filter: invert(28%) sepia(82%) saturate(847%) hue-rotate(196deg) brightness(92%) contrast(97%); }
.fluent-icon-dark         { filter: invert(8%) sepia(57%) saturate(1800%) hue-rotate(204deg) brightness(70%) contrast(110%); }

.feature-icon .fluent-icon,
.app-icon .fluent-icon,
.video-info-item .fluent-icon-box .fluent-icon {
    filter: invert(28%) sepia(82%) saturate(847%) hue-rotate(196deg) brightness(92%) contrast(97%);
    width: 1.375rem; height: 1.375rem;
}

.contact-item-icon .fluent-icon  { filter: brightness(0) invert(1); width: 1.25rem; height: 1.25rem; }
.diagram-element .fluent-icon    { filter: brightness(0) invert(1); width: 1.5rem; height: 1.5rem; }

.btn-primary .fluent-icon,
.nav-cta .fluent-icon,
.form-submit .fluent-icon        { filter: brightness(0) invert(1); width: 1rem; height: 1rem; }

.btn-secondary .fluent-icon      { filter: invert(28%) sepia(82%) saturate(847%) hue-rotate(196deg) brightness(92%) contrast(97%); width: 1rem; height: 1rem; }

.section-badge .fluent-icon,
.hero-badge .fluent-icon         { filter: brightness(0) invert(1); width: 0.875rem; height: 0.875rem; }

.pricing-savings .fluent-icon    { filter: brightness(0) invert(1); width: 0.875rem; height: 0.875rem; }

.pricing-feature .fluent-icon {
    filter: invert(28%) sepia(82%) saturate(847%) hue-rotate(196deg) brightness(92%) contrast(97%);
    width: 1rem; height: 1rem;
    flex-shrink: 0;
}

.nav-icon-btn .fluent-icon       { filter: invert(8%) sepia(57%) saturate(1800%) hue-rotate(204deg) brightness(70%) contrast(110%); width: 1rem; height: 1rem; }
.nav-icon-btn:hover .fluent-icon { filter: invert(28%) sepia(82%) saturate(847%) hue-rotate(196deg) brightness(92%) contrast(97%); }
.hamburger .fluent-icon          { filter: invert(8%) sepia(57%) saturate(1800%) hue-rotate(204deg) brightness(70%) contrast(110%); width: 1.25rem; height: 1.25rem; }
.footer-lang-btn .fluent-icon    { filter: invert(30%) sepia(0%) saturate(0%) brightness(60%) contrast(90%); width: 1rem; height: 1rem; }


/* ── Dark Mode (accessibility) ─────────────────────────────── */
body.dark-mode {
    color-scheme: dark;
    --primary-blue:   #1160B7;
    --secondary-blue: #0d4f9e;
    --pressed-blue:   #0a4284;
    --light-blue:     #223448;
    --dark-blue:      #f2f6fc;

    --text-primary:   #f2f6fc;
    --text-secondary: #b4c3d8;
    --text-light:     #f2f6fc;

    --surface-white:  #10151d;
    --surface-light:  #161e29;
    --surface-medium: #0c1118;
    --surface-dark:   #080c12;

    --border-color:   #283345;
    --border-dark:    #3a465a;
    --shadow-light:   0 1px 2px rgba(0,0,0,.40);
    --shadow-medium:  0 4px 10px rgba(0,0,0,.45);
    --shadow-heavy:   0 14px 28px rgba(0,0,0,.50);
}

body.dark-mode .navbar {
    background: #0f141c;
    border-bottom-color: var(--border-color);
}

body.dark-mode .nav-links-mobile {
    background: #0f141c;
}

body.dark-mode .nav-links-mobile a:hover,
body.dark-mode .theme-toggle-mobile:hover {
    background: #1b2533;
}

body.dark-mode .nav-divider {
    background: var(--border-color);
}

body.dark-mode .site-footer,
body.dark-mode .footer-main,
body.dark-mode .footer-bottom {
    background: #0f141c;
    border-color: var(--border-color);
}

body.dark-mode .footer-col ul li a,
body.dark-mode .footer-bottom-link,
body.dark-mode .footer-lang-btn,
body.dark-mode .footer-copyright,
body.dark-mode .footer-privacy-toggle {
    color: #bcc8da;
}

body.dark-mode .footer-col h4 {
    color: #f2f6fc;
}

body.dark-mode .site-footer [style*="color:#002050"] {
    color: #f2f6fc !important;
}

body.dark-mode .site-footer [style*="color:#555"] {
    color: #bcc8da !important;
}

body.dark-mode .ms-toggle {
    background: #0f141c;
}

body.dark-mode .hero-badge,
body.dark-mode .section-badge,
body.dark-mode .pricing-savings,
body.dark-mode .offer-pill,
body.dark-mode .legal-badge,
body.dark-mode .form-section-num,
body.dark-mode .sidebar-step-num,
body.dark-mode .mission-strip,
body.dark-mode .careers-cta,
body.dark-mode .apply-hero,
body.dark-mode .process-step-number,
body.dark-mode .diagram-element:nth-child(5),
body.dark-mode .ms-dot.active {
    background: #0f3d73;
    color: #ffffff;
}

/* Keep only the requested non-rounded hero strips unfilled in dark mode. */
body.dark-mode .careers-hero .hero-badge,
body.dark-mode .downloads-hero .hero-badge,
body.dark-mode .offers-hero .hero-badge,
body.dark-mode .verify-hero .hero-badge {
    background: transparent;
    color: var(--text-primary);
    border: none;
}

body.dark-mode .back-to-top {
    background: #161e29;
    border-color: var(--border-color);
    color: var(--text-primary);
}

body.dark-mode .back-to-top:hover {
    background: #1d2735;
}

body.dark-mode .form-group input,
body.dark-mode .form-group textarea,
body.dark-mode .contact-form,
body.dark-mode .video-card,
body.dark-mode .pricing-card,
body.dark-mode .offer-modal-panel,
body.dark-mode .verify-panel,
body.dark-mode .verify-result,
body.dark-mode .verify-details,
body.dark-mode .verify-certificate,
body.dark-mode .offers-filters,
body.dark-mode .apply-form,
body.dark-mode .sidebar-card,
body.dark-mode .legal-panel,
body.dark-mode .legal-aside-card,
body.dark-mode .download-card,
body.dark-mode .offer-card,
body.dark-mode .job-row,
body.dark-mode .jobs-empty,
body.dark-mode .value-card,
body.dark-mode .perk-card,
body.dark-mode .app-card,
body.dark-mode .feature-card,
body.dark-mode .metric-item,
body.dark-mode .contact-item,
body.dark-mode .process-step-number {
    border-color: var(--border-color);
}

body.dark-mode .offer-modal-backdrop {
    background: rgba(0, 0, 0, 0.72);
}

body.dark-mode .verify-status.status-valid {
    background: #143226;
    border-color: #2f7f5f;
    color: #8fe4bb;
}

body.dark-mode .verify-status.status-invalid,
body.dark-mode .verify-status.status-error {
    background: #3a1f24;
    border-color: #9e4f58;
    color: #ffc4ca;
}

body.dark-mode .verify-status.status-revoked {
    background: #3a2e1d;
    border-color: #a07a45;
    color: #ffd8a3;
}


/* ── Keyframe animations ────────────────────────────────────── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}


/* ── Utility: Scroll-reveal ─────────────────────────────────── */
/* JS adds .animated when element enters viewport */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Spinner from RemixIcon */
.ri-spin { display: inline-block; animation: spin 1s linear infinite; }


/* ── Responsive: Navbar breakpoint ─────────────────────────── */
@media (max-width: 900px) {
    .nav-links { display: none; }
    .nav-right { display: none; }
    .hamburger { display: flex; }
}

@media (max-width: 480px) {
    .container { padding: 0 1rem; }
}