/* =========================================================================
   Zaita landing page
   Brand: navy → teal gradient (#25408F → #009FA9)
   System font; sentence case; minimal motion.
   ========================================================================= */


/* -------------------------------------------------------------------------
   1. Reset + base
   ------------------------------------------------------------------------- */

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

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

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                 "Helvetica Neue", Arial, sans-serif;
    font-size: 17px;
    line-height: 1.55;
    color: #1a1a2e;
    background: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, svg {
    display: block;
    max-width: 100%;
}

a {
    color: #25408f;
    text-decoration: none;
    transition: color 120ms ease;
}

a:hover {
    color: #009fa9;
}


/* -------------------------------------------------------------------------
   2. Layout
   ------------------------------------------------------------------------- */

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (min-width: 768px) {
    .container { padding: 0 40px; }
}


/* -------------------------------------------------------------------------
   3. Brand element (gradient wordmark)
   ------------------------------------------------------------------------- */

.gradient-text {
    background: linear-gradient(45deg, #25408f, #009fa9);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: #25408f;  /* fallback for browsers that don't support background-clip */
    font-weight: 600;
    letter-spacing: -0.02em;
}


/* -------------------------------------------------------------------------
   4. Header
   ------------------------------------------------------------------------- */

.site-header {
    border-bottom: 0.5px solid #e5e8f0;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.brand {
    color: #1a1a2e;
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.brand-mark {
    background: linear-gradient(45deg, #25408f, #009fa9);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav {
    display: flex;
    gap: 28px;
}

.nav a {
    font-size: 15px;
    color: #5a5f7a;
    font-weight: 500;
}

.nav a:hover {
    color: #25408f;
}

@media (max-width: 600px) {
    .nav { display: none; }
}


/* -------------------------------------------------------------------------
   5. Hero
   ------------------------------------------------------------------------- */

.hero {
    padding: 96px 0 80px;
    text-align: center;
    background:
        radial-gradient(ellipse at 30% 0%, rgba(37, 64, 143, 0.07), transparent 60%),
        radial-gradient(ellipse at 70% 100%, rgba(0, 159, 169, 0.07), transparent 60%),
        #ffffff;
}

.hero-inner {
    max-width: 780px;
}

.hero-eyebrow {
    margin: 0 0 16px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #5a5f7a;
}

.hero-title {
    margin: 0 0 24px;
    font-size: clamp(64px, 12vw, 112px);
    line-height: 1;
    font-weight: 600;
    letter-spacing: -0.04em;
}

.hero-tagline {
    margin: 0 0 20px;
    font-size: clamp(22px, 3vw, 28px);
    font-weight: 500;
    color: #1a1a2e;
    letter-spacing: -0.01em;
}

.hero-lede {
    margin: 0 auto 36px;
    max-width: 640px;
    font-size: 17px;
    color: #5a5f7a;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}


/* -------------------------------------------------------------------------
   6. Buttons
   ------------------------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 22px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: -0.005em;
    transition: all 140ms ease;
    border: 0.5px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(45deg, #25408f, #009fa9);
    color: #ffffff;
    box-shadow: 0 1px 3px rgba(37, 64, 143, 0.15);
}

.btn-primary:hover {
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 64, 143, 0.22);
}

.btn-ghost {
    background: transparent;
    color: #1a1a2e;
    border-color: #d6dae6;
}

.btn-ghost:hover {
    color: #1a1a2e;
    border-color: #25408f;
    background: #f8f9fb;
}


/* -------------------------------------------------------------------------
   7. Section primitives
   ------------------------------------------------------------------------- */

section {
    padding: 80px 0;
}

@media (min-width: 768px) {
    section { padding: 96px 0; }
}

.section-title {
    margin: 0 0 16px;
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 600;
    letter-spacing: -0.025em;
    color: #1a1a2e;
}

.section-intro {
    margin: 0 0 48px;
    max-width: 640px;
    font-size: 17px;
    color: #5a5f7a;
    line-height: 1.6;
}


/* -------------------------------------------------------------------------
   8. Applications grid
   ------------------------------------------------------------------------- */

.applications {
    background: #f8f9fb;
    border-top: 0.5px solid #e5e8f0;
    border-bottom: 0.5px solid #e5e8f0;
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.application-card {
    background: #ffffff;
    border: 0.5px solid #e5e8f0;
    border-radius: 14px;
    padding: 28px 26px;
    transition: all 180ms ease;
}

.application-card:hover {
    border-color: #d0d6e3;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26, 26, 46, 0.06);
}

.application-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}

.application-name {
    margin: 0;
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.015em;
    background: linear-gradient(45deg, #25408f, #009fa9);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.application-purpose {
    margin: 0 0 12px;
    font-size: 13px;
    color: #5a5f7a;
    font-weight: 500;
    letter-spacing: 0.005em;
}

.application-tagline {
    margin: 0 0 14px;
    font-size: 17px;
    font-weight: 500;
    color: #1a1a2e;
    line-height: 1.4;
    font-style: italic;
}

.application-blurb {
    margin: 0;
    font-size: 14.5px;
    color: #5a5f7a;
    line-height: 1.55;
}

.application-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(0, 159, 169, 0.10);
    color: #007680;
    flex-shrink: 0;
}

.application-icon svg {
    width: 20px;
    height: 20px;
}


/* -------------------------------------------------------------------------
   9. Why grid
   ------------------------------------------------------------------------- */

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px 40px;
}

.why-item {
    /* No card chrome — just spacious text */
}

.why-heading {
    margin: 0 0 10px;
    font-size: 19px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: #1a1a2e;
}

.why-body {
    margin: 0;
    font-size: 15.5px;
    line-height: 1.6;
    color: #5a5f7a;
}


/* -------------------------------------------------------------------------
   10. About
   ------------------------------------------------------------------------- */

.about {
    background:
        radial-gradient(ellipse at 80% 50%, rgba(37, 64, 143, 0.05), transparent 60%),
        #ffffff;
    border-top: 0.5px solid #e5e8f0;
}

.about-inner {
    max-width: 720px;
}

.about-body {
    margin: 0 0 18px;
    font-size: 17px;
    line-height: 1.6;
    color: #1a1a2e;
}

.link {
    font-size: 16px;
    font-weight: 500;
    color: #25408f;
}

.link:hover {
    color: #009fa9;
}


/* -------------------------------------------------------------------------
   11. Footer
   ------------------------------------------------------------------------- */

.site-footer {
    border-top: 0.5px solid #e5e8f0;
    background: #f8f9fb;
    padding: 32px 0;
    color: #5a5f7a;
    font-size: 14px;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-brand {
    margin: 0;
    font-weight: 500;
}

.footer-brand .gradient-text {
    font-size: 16px;
    margin-right: 10px;
}

.footer-meta {
    color: #9ca0b5;
    font-size: 13px;
}

.footer-contact {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.footer-contact a {
    color: #5a5f7a;
}

.footer-contact a:hover {
    color: #25408f;
}

.footer-sep {
    color: #c8cdd9;
}

.footer-copyright {
    color: #9ca0b5;
    font-size: 13px;
}


/* -------------------------------------------------------------------------
   12. Reduced motion
   ------------------------------------------------------------------------- */

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