/* Hivlor - Institutional Knowledge Portal Design System */

/* ========== ROOT VARIABLES ========== */
:root {
    --primary-dark: #2C2C2C;
    --secondary-light: #F5F5F5;
    --secondary-medium: #CCCCCC;
    --accent-blue: #007BFF;
    --accent-teal: #20C997;
    --accent-gold: #FFD700;
    --text-primary: #2C2C2C;
    --text-secondary: #666666;
    --border-color: #E0E0E0;
    --bg-white: #FFFFFF;
    --bg-light: #FAFAFA;
    --radius: 4px;
    --spacing-unit: 16px;
}

/* ========== GLOBAL STYLES ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
    font-size: 16px;
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: var(--spacing-unit);
}

h1 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-top: 2rem;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 1.5rem;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

p + h2,
p + h3 {
    margin-top: 2.5rem;
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-teal);
    text-decoration: underline;
}

/* ========== HEADER & NAVIGATION ========== */
.sticky-header {
    position: sticky;
    top: 0;
    background-color: var(--primary-dark);
    color: var(--secondary-light);
    padding: var(--spacing-unit);
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.header-container {
    max-width: 1440px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.75rem;
    color: var(--secondary-light);
    margin: 0;
}

.main-nav {
    display: flex;
    gap: 2.5rem;
}

.nav-link {
    color: var(--secondary-light);
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    padding-bottom: 0.25rem;
    border-bottom: 2px solid transparent;
}

.nav-link:hover {
    color: var(--accent-blue);
    text-decoration: none;
}

.nav-link.active {
    color: var(--accent-blue);
    border-bottom-color: var(--accent-blue);
}

/* ========== MAIN CONTENT ========== */
main {
    min-height: calc(100vh - 200px);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-unit);
}

/* ========== HERO SECTION ========== */
.hero-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 4rem var(--spacing-unit);
    background-color: var(--bg-light);
}

.hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-content h1 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.hero-image {
    width: 100%;
    max-height: 500px;
    overflow: hidden;
    border-radius: var(--radius);
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ========== CONTENT SECTIONS ========== */
.content-section {
    padding: 4rem var(--spacing-unit);
}

.full-width-section {
    padding: 4rem var(--spacing-unit);
    margin-left: -var(--spacing-unit);
    margin-right: -var(--spacing-unit);
    margin-left: calc(-1 * var(--spacing-unit));
    margin-right: calc(-1 * var(--spacing-unit));
    padding-left: var(--spacing-unit);
    padding-right: var(--spacing-unit);
}

/* ========== LAYOUTS ========== */
.two-column-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.three-column-layout {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.text-column {
    flex: 1;
}

.image-column {
    flex: 1;
}

.image-column img {
    width: 100%;
    height: auto;
    border-radius: var(--radius);
    display: block;
}

.column {
    padding: 2rem;
    background-color: var(--bg-light);
    border-radius: var(--radius);
    border-left: 4px solid var(--accent-blue);
}

.column h3 {
    margin-top: 0;
}

/* ========== CARDS ========== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.card h3 {
    padding: 1.5rem 1.5rem 0;
    margin-top: 0;
    font-size: 1.25rem;
}

.card p {
    padding: 0 1.5rem;
    color: var(--text-secondary);
}

.card a {
    display: inline-block;
    padding: 1rem 1.5rem;
    color: var(--accent-blue);
    font-weight: 500;
}

/* ========== BLOG CARDS ========== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.blog-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.3s ease;
}

.blog-card:hover {
    box-shadow: 0 6px 16px rgba(0,0,0,0.1);
}

.blog-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

.blog-card h3 {
    padding: 1.5rem 1.5rem 0.75rem;
    margin-top: 0;
    font-size: 1.25rem;
}

.blog-card h3 a {
    color: var(--text-primary);
}

.blog-card h3 a:hover {
    color: var(--accent-blue);
}

.blog-card p {
    padding: 0 1.5rem;
    font-size: 0.95rem;
}

.blog-link {
    display: inline-block;
    padding: 1rem 1.5rem;
    color: var(--accent-blue);
    font-weight: 500;
    font-size: 0.95rem;
}

/* ========== DISCLAIMER SECTION ========== */
.disclaimer-section {
    background-color: #FFF9E6;
    padding: 3rem var(--spacing-unit);
}

.disclaimer-box {
    background-color: var(--secondary-light);
    border-left: 4px solid var(--accent-gold);
    padding: 2rem;
    border-radius: var(--radius);
    margin-top: 1.5rem;
}

.disclaimer-box p {
    margin-bottom: 1rem;
}

.disclaimer-box p:last-child {
    margin-bottom: 0;
}

/* ========== CTA SECTION ========== */
.cta-section {
    background-color: var(--secondary-light);
    padding: 3rem var(--spacing-unit);
    text-align: center;
}

.cta-section h2 {
    margin-top: 0;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 0.875rem 2rem;
    background-color: var(--accent-blue);
    color: var(--bg-white);
    font-weight: 600;
    border-radius: var(--radius);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-decoration: none;
}

.cta-button:hover {
    background-color: var(--accent-teal);
    color: var(--bg-white);
    text-decoration: none;
}

/* ========== FORMS ========== */
.contact-form {
    max-width: 600px;
    margin: 2rem auto;
}

.form-group {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.1);
}

.alert-error {
    background-color: #FFE0E0;
    border-left: 4px solid #D32F2F;
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
}

.alert-error p {
    color: #D32F2F;
    margin: 0;
}

/* ========== LISTS ========== */
ul, ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
    line-height: 1.8;
}

li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

li strong {
    color: var(--text-primary);
}

/* ========== FOOTER ========== */
.footer {
    background-color: var(--primary-dark);
    color: var(--secondary-light);
    padding: 3rem var(--spacing-unit) 1rem;
    margin-top: 3rem;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    color: var(--secondary-light);
    margin-top: 0;
}

.footer-section p {
    color: var(--secondary-medium);
    font-size: 0.95rem;
}

.footer-section ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--accent-blue);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1rem;
    text-align: center;
    color: var(--secondary-medium);
    font-size: 0.9rem;
}

/* ========== ACCORDION ========== */
.accordion {
    margin-top: 2rem;
}

.accordion-item {
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
}

.accordion-item h3 {
    margin: 0;
    padding: 1rem 1.5rem;
    background-color: var(--secondary-light);
    cursor: pointer;
    font-size: 1.1rem;
    transition: background-color 0.3s ease;
}

.accordion-item h3:hover {
    background-color: #EEEEEE;
}

.accordion-item p {
    padding: 1rem 1.5rem;
    margin: 0;
    background-color: var(--bg-white);
}

/* ========== NAVIGATION LINKS ========== */
.navigation-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.navigation-links .cta-button {
    flex: 1;
    min-width: 200px;
    text-align: center;
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .three-column-layout {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }

    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 768px) {
    .hero-section {
        grid-template-columns: 1fr;
    }

    .two-column-layout {
        grid-template-columns: 1fr;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .three-column-layout {
        grid-template-columns: 1fr;
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }

    .main-nav {
        gap: 1.5rem;
    }

    .footer-container {
        grid-template-columns: 1fr;
    }

    .header-container {
        flex-wrap: wrap;
        gap: 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .navigation-links {
        flex-direction: column;
    }

    .navigation-links .cta-button {
        min-width: unset;
    }
}

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

    .sticky-header {
        padding: 0.75rem;
    }

    .header-container {
        flex-direction: column;
        align-items: flex-start;
    }

    .main-nav {
        width: 100%;
        gap: 1rem;
        flex-wrap: wrap;
    }

    .nav-link {
        font-size: 0.9rem;
    }

    .logo h1 {
        font-size: 1.5rem;
    }

    .hero-section {
        padding: 2rem 0;
    }

    .content-section {
        padding: 2rem 0;
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    h3 {
        font-size: 1.1rem;
    }

    .column {
        padding: 1rem;
    }

    .card img {
        height: 200px;
    }

    .blog-card img {
        height: 180px;
    }
}