/* 
    OIRRC SAIVO 2026 Landing Page Styles
    Premium, clinical, retina-specific, trial-ready.
*/

:root {
    /* Brand Colors */
    --navy: #1B2A4A;
    --navy-light: #263B65;
    --navy-dark: #121D33;
    --teal: #0097A7;
    --teal-light: #00B4C8;
    --white: #FFFFFF;
    --gray-100: #F3F6F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-600: #475569;
    --gray-800: #1E293B;

    /* Typography */
    --font-primary: 'Inter', sans-serif;

    /* Global Styles */
    --transition: 0.3s ease;
    --border-radius: 8px;
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--gray-800);
    background-color: var(--white);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1,
h2,
h3,
h4,
h5 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    color: var(--gray-600);
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-narrow {
    max-width: 800px;
}

section {
    padding: 5rem 0;
}

.center {
    text-align: center;
}

.bg-light {
    background-color: var(--gray-100);
}

.bg-dark {
    background-color: var(--navy-dark);
    color: var(--white);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.75rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--teal);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--teal-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 151, 167, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn-outline-nav {
    border-color: var(--teal);
    color: var(--teal);
    padding: 0.5rem 1.25rem;
}

.btn-outline-nav:hover {
    background-color: var(--teal);
    color: var(--white);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--navy);
    backdrop-filter: none;
    z-index: 1000;
    height: 80px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.brand-logo {
    height: 60px;
    width: auto;
    display: block;
    /* User's logo is black, so we invert it and boost brightness to make it pure white */
    filter: brightness(0) invert(1);
    transition: var(--transition);
}

.brand-logo:hover {
    opacity: 0.9;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--white);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover:not(.btn) {
    color: var(--teal);
}

/* Hero Section */
.hero {
    position: relative;
    padding: 7rem 0 7rem;
    background-color: var(--navy);
    color: var(--white);
    overflow: hidden;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

/* Placeholder Mockup specific logic */
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0.25;
    filter: saturate(0) contrast(1.2);
    mix-blend-mode: luminosity;
    z-index: 0;
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--navy) 10%, transparent 100%);
    opacity: 0.8;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-logo {
    display: block;
    height: 210px;
    /* Big and prominent */
    width: auto;
    margin-bottom: 2.5rem;
    /* Intentionally leaving out the filter so the logo uses its default color */
}

.eyebrow {
    display: inline-block;
    color: var(--teal-light);
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 1.5rem;
    /* Increased significantly for importance */
    margin-bottom: 1.5rem;
}

.hero .main-headline {
    color: var(--white);
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero .subtitle {
    color: var(--gray-200);
    font-size: 1.75rem;
    font-weight: 400;
    margin-bottom: 2rem;
}

.hero-support-copy {
    color: var(--gray-300);
    font-size: 1.125rem;
    max-width: 600px;
    margin-bottom: 3rem;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Value Section */
.trust-value {
    padding: 6rem 0 -2rem;
    background-color: var(--white);
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: -8rem;
    /* Overlap hero slightly */
    position: relative;
    z-index: 3;
}

.value-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(27, 42, 74, 0.08);
    /* Navy tinted shadow */
    border-top: 4px solid var(--teal);
    transition: var(--transition);
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(27, 42, 74, 0.12);
}

.value-card h3 {
    color: var(--navy);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

/* Presentations Section */
.section-header {
    max-width: 700px;
    margin: 0 auto 3rem;
}

.section-header p {
    font-size: 1.125rem;
}

.presentation-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--navy-light);
    box-shadow: var(--box-shadow);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.pres-header {
    border-bottom: 1px solid var(--gray-200);
    padding-bottom: 1rem;
}

.pres-type {
    display: inline-block;
    background: var(--gray-100);
    color: var(--navy);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.pres-title {
    color: var(--navy);
    margin-bottom: 0.5rem;
    font-size: 1.35rem;
}

.pres-presenter {
    font-weight: 500;
    color: var(--gray-600);
}

.pres-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    font-size: 0.95rem;
}

.detail-item {
    display: flex;
    flex-direction: column;
}

.detail-item strong {
    color: var(--navy);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pres-actions {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
}

/* Lead Capture Form */
.lead-capture {
    background-color: var(--navy-light);
    color: var(--white);
}

.lead-capture-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.lead-text h2 {
    color: var(--white);
}

.lead-text p {
    color: var(--gray-300);
    font-size: 1.125rem;
}

.lead-form-wrapper {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    color: var(--gray-800);
}

.oirrc-form .form-group {
    margin-bottom: 1.5rem;
}

.oirrc-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--navy);
    font-size: 0.9rem;
}

.oirrc-form input[type="text"],
.oirrc-form input[type="email"],
.oirrc-form select,
.oirrc-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.oirrc-form input:focus,
.oirrc-form select:focus,
.oirrc-form textarea:focus {
    outline: none;
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(0, 151, 167, 0.1);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.honeypot {
    display: none !important;
}

.form-note {
    font-size: 0.8rem;
    color: var(--gray-600);
    text-align: center;
    margin-top: 1rem;
}

/* Loader state */
.btn .loader {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
    margin-left: 10px;
}

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

.form-loading .loader {
    display: block;
}

/* Form Success */
.hidden {
    display: none !important;
}

.form-success {
    text-align: center;
    padding: 2rem 0;
}

.success-icon {
    color: var(--teal);
    margin-bottom: 1rem;
}

.form-success h3 {
    color: var(--navy);
    margin-bottom: 0.5rem;
}

.form-success p {
    margin-bottom: 2rem;
}

/* Differentiation Section */
.differentiation .lead-subtitle {
    color: var(--gray-300);
    font-size: 1.25rem;
    margin-bottom: 3rem;
}

.diff-list {
    list-style: none;
    display: grid;
    gap: 1.5rem;
    text-align: left;
}

.diff-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.125rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.diff-list .check {
    width: 24px;
    height: 24px;
    stroke: var(--teal);
    stroke-width: 3;
    flex-shrink: 0;
}

/* Trusted Partners Marquee */
.marquee-container {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 2rem 0;
}

.marquee-container::before,
.marquee-container::after {
    content: '';
    position: absolute;
    top: 0;
    width: 60px;
    height: 100%;
    z-index: 2;
}

.marquee-container::before {
    left: 0;
    background: linear-gradient(to right, var(--white) 0%, transparent 100%);
}

.marquee-container::after {
    right: 0;
    background: linear-gradient(to left, var(--white) 0%, transparent 100%);
}

.marquee-content {
    display: flex;
    width: max-content;
    animation: scroll-marquee 25s linear infinite;
    align-items: center;
}

.marquee-content:hover {
    animation-play-state: paused;
}

.partner-logo {
    height: 80px;
    width: auto;
    max-width: 250px;
    object-fit: contain;
    margin: 0 4rem;
    transition: var(--transition);
}

.logo-belite {
    transform: scale(1.3);
}

/* Adjust sizes for specific logos if necessary, but max-height usually works well */

.logo-invert {
    filter: invert(1);
}

.logo-dark-bg {
    mix-blend-mode: multiply;
}

@keyframes scroll-marquee {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-50%);
    }
}

/* Meeting Embed placeholder */
.meeting-embed-container {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 3rem;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: var(--box-shadow);
}

/* Footer */
.footer {
    position: relative;
    overflow: hidden;
    background-color: var(--navy);
    color: var(--gray-300);
    padding: 4rem 0 2rem;
}

.footer-overlay-content {
    position: relative;
    z-index: 2;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    height: 70px;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: var(--teal);
    margin: 0.5rem 0 0 0;
    font-size: 0.9rem;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    margin-left: 1.5rem;
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--teal);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    font-size: 0.85rem;
}

.disclaimer-note {
    max-width: 400px;
    text-align: right;
    margin-bottom: 0;
    opacity: 0.7;
}

.disclaimer-note strong {
    color: var(--white);
}

/* Responsive Rules */
@media (max-width: 992px) {
    .lead-capture-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero .main-headline {
        font-size: 2.75rem;
    }
}

@media (max-width: 768px) {
    .navbar {
        height: auto;
        padding: 1rem 0;
    }

    .navbar-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        padding-top: 8rem;
    }

    .value-grid {
        margin-top: 0;
    }

    .trust-value {
        padding-top: 4rem;
    }

    .grid-2 {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .pres-actions {
        flex-direction: column;
    }

    .footer-container,
    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 1.5rem;
    }

    .footer-links a {
        margin: 0 0.75rem;
    }

    .disclaimer-note {
        text-align: center;
    }
}