@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@700&family=Open+Sans:wght@400&display=swap');

:root {
  --deep-navy: #002147;
  --slate-grey: #4A5568;
  --medical-white: #F8FAFC;
  --security-red: #9B1C1C;
  --pure-white: #FFFFFF;
  --navy-hover: #004488;
}

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--slate-grey);
    background-color: var(--medical-white);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    color: var(--deep-navy);
    font-weight: 700;
}

/* Container */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background-color: var(--pure-white);
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    font-family: 'Montserrat', sans-serif;
    font-size: 24px;
    font-weight: 700;
    color: var(--deep-navy);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--slate-grey);
    font-weight: 600;
    font-size: 15px;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--deep-navy);
}

.lang-switch {
    background: transparent;
    border: 1px solid var(--slate-grey);
    color: var(--slate-grey);
    padding: 6px 12px;
    border-radius: 4px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lang-switch:hover {
    border-color: var(--deep-navy);
    color: var(--deep-navy);
}

/* Buttons */
.btn {
    display: inline-block;
    background-color: var(--deep-navy);
    color: var(--pure-white);
    padding: 14px 28px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: var(--navy-hover);
}

/* Cards */
.card {
    background-color: var(--pure-white);
    border-left: 2px solid var(--deep-navy);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.06); /* Soft Shadow */
    padding: 30px;
    border-radius: 4px;
    margin-bottom: 30px;
}

.card h2 {
    margin-top: 0;
    font-size: 24px;
    margin-bottom: 15px;
}

.card p {
    margin-bottom: 20px;
    font-size: 16px;
}

.card .btn {
    margin-top: 10px;
}

/* Hero Section */
.hero {
    background-color: var(--deep-navy);
    color: var(--pure-white);
    padding: 120px 0;
    text-align: center;
    background-image: linear-gradient(rgba(0, 33, 71, 0.85), rgba(0, 33, 71, 0.95)), url('https://images.unsplash.com/photo-1500534314209-a25ddb2bd429?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
}

.hero h1 {
    color: var(--pure-white);
    font-size: 52px;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero p {
    font-size: 20px;
    max-width: 800px;
    margin: 0 auto 40px auto;
    color: var(--medical-white);
    line-height: 1.8;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(240px, 1fr));
    gap: 24px;
    margin: 40px 0 0 0;
}

.service-card {
    background-color: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 20px;
    padding: 28px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
    color: var(--pure-white);
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 16px;
}

.service-card p {
    margin: 0;
    line-height: 1.75;
    color: rgba(248,250,252,0.9);
}

.articles {
    padding: 80px 0;
    background-color: #F8FAFC;
}

.articles h2 {
    text-align: center;
    margin-bottom: 14px;
    font-size: 36px;
}

.section-intro {
    max-width: 780px;
    margin: 0 auto 38px auto;
    text-align: center;
    color: var(--slate-grey);
    font-size: 18px;
    line-height: 1.9;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(240px, 1fr));
    gap: 24px;
}

.article-card {
    display: block;
    background-color: var(--pure-white);
    border-radius: 18px;
    padding: 28px;
    text-decoration: none;
    color: var(--deep-navy);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.article-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.article-card h3 {
    margin-top: 0;
    margin-bottom: 18px;
    font-size: 24px;
}

.article-card p {
    margin: 0;
    line-height: 1.8;
    color: var(--slate-grey);
}

.article-hero {
    background-color: var(--deep-navy);
    color: var(--pure-white);
    padding: 100px 0 80px 0;
    text-align: center;
    background-image: linear-gradient(rgba(0, 33, 71, 0.7), rgba(0, 33, 71, 0.85));
}

.article-hero h1 {
    font-size: 42px;
    margin-bottom: 20px;
}

.article-hero p {
    max-width: 760px;
    margin: 0 auto;
    font-size: 18px;
    line-height: 1.9;
    color: rgba(248,250,252,0.92);
}

.admin-card {
    margin-bottom: 30px;
}

.admin-section {
    margin-bottom: 28px;
}

.admin-section h3 {
    margin-bottom: 16px;
    font-size: 22px;
}

.admin-input,
.admin-textarea {
    width: 100%;
    border: 1px solid #CBD5E1;
    border-radius: 10px;
    padding: 12px 14px;
    margin-bottom: 14px;
    font-size: 15px;
    font-family: 'Open Sans', sans-serif;
}

.admin-textarea {
    min-height: 100px;
    resize: vertical;
}

.admin-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
}

.btn-secondary {
    background-color: #E2E8F0;
    color: var(--deep-navy);
}

.admin-file-input {
    background: transparent;
    border: 1px dashed #CBD5E1;
    border-radius: 10px;
    padding: 10px;
}

.hidden {
    display: none;
}

/* Main Content Area */
.main-content {
    padding: 80px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 40px;
}

.about-card h2 {
    font-size: 36px;
    margin-bottom: 18px;
}

.about-photo img {
    width: 100%;
    height: auto;
    border-radius: 18px;
    display: block;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
    object-fit: cover;
}

.plan-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(240px, 1fr));
    gap: 24px;
    margin: 40px 0 20px 0;
}

.plan-card {
    background-color: var(--pure-white);
    border-radius: 16px;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
    padding: 28px;
}

.plan-card h3 {
    margin-top: 0;
    margin-bottom: 16px;
    font-size: 22px;
}

.plan-card p {
    margin: 0;
    color: var(--slate-grey);
    font-size: 16px;
    line-height: 1.8;
}

.card ul {
    margin: 0;
    padding-left: 20px;
    color: var(--slate-grey);
}

.card ul li {
    margin-bottom: 12px;
    font-size: 16px;
}

.contact {
    padding: 80px 0;
    background-color: #F8FAFC;
}

.contact h2 {
    text-align: center;
    margin-bottom: 24px;
    font-size: 32px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(220px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.contact-card {
    background-color: var(--pure-white);
    border-radius: 16px;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
    padding: 32px;
}

..contact-card h3 {
    margin-top: 0;
    margin-bottom: 14px;
    font-size: 20px;
}

.contact-card a {
    color: var(--deep-navy);
    text-decoration: none;
    font-weight: 700;
}

.contact-card a:hover {
    text-decoration: underline;
}

.contact {
    padding: 100px 0;
    background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
}

.contact-top {
    text-align: center;
    margin-bottom: 36px;
}

.contact-top p {
    max-width: 760px;
    margin: 0 auto;
    color: var(--slate-grey);
    font-size: 18px;
    line-height: 1.9;
}

.contact-card {
    position: relative;
    background-color: var(--pure-white);
    border-radius: 22px;
    padding: 34px;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(0, 68, 136, 0.08), transparent 40%);
    opacity: 0.9;
}

.contact-card h3,
.contact-card p,
.contact-card a {
    position: relative;
    z-index: 1;
}

.contact-card p {
    margin-bottom: 18px;
    color: var(--slate-grey);
    font-size: 16px;
    line-height: 1.8;
}

.contact-card.contact-cta {
    background: linear-gradient(135deg, #002147 0%, #174b7f 100%);
}

.contact-card.contact-cta p {
    color: rgba(255,255,255,0.92);
}

.contact-card.contact-cta a {
    color: #fff;
}

.contact-card.contact-cta button {
    margin-top: 18px;
    border: none;
    padding: 14px 24px;
    border-radius: 8px;
    background-color: var(--pure-white);
    color: var(--deep-navy);
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.contact-card.contact-cta button:hover {
    background-color: #f0f4f8;
}

/* Loader */
#loader-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--medical-white);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader-hidden {
    opacity: 0;
    visibility: hidden;
}

.dna-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.dna-svg {
    width: 120px;
    height: 140px;
    animation: spinDna 4s linear infinite;
}

.helix-path1,
.helix-path2 {
    stroke-width: 5;
    fill: none;
    stroke-linecap: round;
}

.helix-path1 {
    stroke: var(--deep-navy);
}

.helix-path2 {
    stroke: var(--security-red);
}

.helix-rung {
    stroke: var(--slate-grey);
    stroke-width: 3;
    stroke-linecap: round;
    opacity: 0.75;
}

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

.loader-text {
    margin-top: 24px;
    font-family: 'Montserrat', sans-serif;
    color: var(--deep-navy);
    font-weight: 700;
    letter-spacing: 2px;
}

@media (max-width: 900px) {
    .about-grid,
    .contact-grid,
    .plan-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 42px;
    }

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

/* Logos Section */
.standards {
    padding: 60px 0 80px 0;
    background-color: var(--pure-white);
    border-top: 1px solid #E2E8F0;
}

.standards h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 32px;
}

.logos-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    align-items: center;
}

.logo-item {
    filter: grayscale(100%);
    opacity: 0.5;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 180px;
    height: 90px;
    background-color: #F1F5F9;
    border-radius: 8px;
    color: var(--slate-grey);
    font-weight: 700;
    font-size: 15px;
    font-family: 'Montserrat', sans-serif;
}

.logo-item:hover {
    filter: grayscale(0%);
    opacity: 1;
    background-color: #E2E8F0;
    color: var(--deep-navy);
}

/* Loader */
#loader-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--medical-white);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader-hidden {
    opacity: 0;
    visibility: hidden;
}

.dna-svg {
    width: 100px;
    height: 120px;
    animation: floatDna 2.8s ease-in-out infinite;
}

.helix-path1,
.helix-path2 {
    stroke-width: 4;
    fill: none;
    stroke-linecap: round;
    stroke-dasharray: 160;
    stroke-dashoffset: 0;
    animation: dashFlow 3.6s linear infinite;
}

.helix-path1 {
    stroke: var(--deep-navy);
}

.helix-path2 {
    stroke: var(--security-red);
    animation-delay: 0.9s;
}

.helix-rung {
    stroke: var(--slate-grey);
    stroke-width: 2.5;
    stroke-linecap: round;
    opacity: 0.7;
    animation: rungPulse 2.8s ease-in-out infinite;
}

.helix-rung:nth-of-type(1) {
    animation-delay: 0s;
}

.helix-rung:nth-of-type(2) {
    animation-delay: 0.15s;
}

.helix-rung:nth-of-type(3) {
    animation-delay: 0.3s;
}

.helix-rung:nth-of-type(4) {
    animation-delay: 0.45s;
}

.helix-rung:nth-of-type(5) {
    animation-delay: 0.6s;
}

@keyframes floatDna {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

@keyframes dashFlow {
    0% {
        stroke-dashoffset: 160;
    }
    100% {
        stroke-dashoffset: -160;
    }
}

@keyframes rungPulse {
    0%, 100% {
        opacity: 0.7;
    }
    50% {
        opacity: 1;
    }
}

.loader-text {
    margin-top: 20px;
    font-family: 'Montserrat', sans-serif;
    color: var(--deep-navy);
    font-weight: 700;
    letter-spacing: 2px;
}