/*
 * Horizon Scanning Lab - Main Stylesheet (v2 - Slick)
 *
 * Table of Contents:
 * 1.  CSS Variables & Root Styles
 * 2.  Reset & Base Styles
 * 3.  Typography & Fonts
 * 4.  Layout & Helpers (Container, Grids)
 * 5.  Site Header & Navigation
 * 6.  Footer
 * 7.  Buttons & Forms
 * 8.  Page-Specific Styles (Hero, Cards, etc.)
 * 9.  Accessibility Enhancements
 * 10. Animations & Transitions
 * 11. Responsive Media Queries
*/

/* 1. CSS Variables & Root Styles
--------------------------------------------- */
:root {
    --primary-blue: #002D62;
    --accent-cyan: #0076C0;
    --neutral-light: #F5F7FA;
    --neutral-dark: #E9ECEF;
    --text-grey: #333333;
    --white: #FFFFFF;
    --border-color: #DEE2E6;

    --font-primary: 'Inter', sans-serif;
    --font-secondary: 'Heebo', sans-serif;
    --font-tertiary: 'Noto Sans JP', sans-serif;

    --header-height: 100px;
    --border-radius: 8px;
    --transition-speed: 0.3s;
}

/* 2. Reset & Base Styles
--------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 100%;
    /* 16px */
}

body {
    font-family: var(--font-primary);
    color: var(--text-grey);
    background-color: var(--white);
    line-height: 1.7;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 3. Typography & Fonts
--------------------------------------------- */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--primary-blue);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

p {
    margin-bottom: 1.25rem;
}

a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: color var(--transition-speed) ease;
}

a:hover,
a:focus {
    color: var(--primary-blue);
    text-decoration: underline;
}

/* RTL/Language-specific font assignment */
[lang="he"] body,
[lang="he"] h1,
[lang="he"] h2,
[lang="he"] h3,
[lang="he"] button,
[lang="he"] a,
[lang="he"] input,
[lang="he"] textarea,
[lang="he"] select {
    font-family: var(--font-secondary);
}

[lang="jp"] body,
[lang="jp"] h1,
[lang="jp"] h2,
[lang="jp"] h3,
[lang="jp"] button,
[lang="jp"] a,
[lang="jp"] input,
[lang="jp"] textarea,
[lang="jp"] select {
    font-family: var(--font-tertiary);
}

/* 4. Layout & Helpers
--------------------------------------------- */
.container {
    width: 90%;
    max-width: 1280px;
    margin-inline: auto;
}

.section-padding {
    padding-block: 5rem;
}

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

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

.grid-3 {
    display: grid;
    gap: 2.5rem;
}

.grid-4 {
    display: grid;
    gap: 2rem;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.content-section {
    max-width: 800px;
    margin-inline: auto;
}

.section-title {
    text-align: center;
    margin-bottom: 3.5rem;
}

/* 5. Site Header & Navigation
--------------------------------------------- */
.site-header {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    transition: background-color var(--transition-speed) ease;
    padding: 0.5rem 0;
}

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

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo {
    height: 55px;
    width: auto;
    transition: transform var(--transition-speed) ease;
}

.logo-link:hover .logo {
    transform: rotate(-10deg) scale(1.1);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.main-nav a {
    color: var(--text-grey);
    font-weight: 700;
    padding: 0.5rem 0;
    position: relative;
    text-decoration: none;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--accent-cyan);
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform var(--transition-speed) ease-out;
}

.main-nav a:hover::after,
.main-nav a:focus::after,
.main-nav a.active::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.main-nav a.active {
    color: var(--primary-blue);
}

.header-controls {
    display: flex;
    align-items: center;
}

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

/* Language Switcher */
.lang-switcher {
    position: relative;
}

.lang-toggle {
    background: none;
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 700;
}

.lang-menu {
    display: none;
    position: absolute;
    top: 120%;
    right: 0;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    list-style: none;
    padding: 0.5rem 0;
    min-width: 120px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: 1001;
}

.lang-menu.show {
    display: block;
}

.lang-menu a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text-grey);
}

.lang-menu a:hover {
    background-color: var(--neutral-light);
}

/* 6. Footer
--------------------------------------------- */
.site-footer-bottom {
    background: linear-gradient(to right, var(--primary-blue), #001f4a);
    color: var(--white);
    padding: 2.5rem 0;
    text-align: center;
}

.site-footer-bottom .footer-content {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.site-footer-bottom a {
    color: var(--white);
    text-decoration: underline;
}

.site-footer-bottom a:hover {
    text-decoration: none;
    opacity: 0.8;
}

/* Footer Logos */
.footer-logos {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.footer-logo {
    height: 60px;
    width: auto;
    opacity: 0.9;
    transition: opacity var(--transition-speed) ease;
}

.footer-logo:hover {
    opacity: 1;
}

/* Header Brand Section */
.header-brand {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.horizon-badge {
    height: 45px;
    width: auto;
    opacity: 0.8;
}

/* 7. Buttons & Forms
--------------------------------------------- */
.btn {
    display: inline-block;
    padding: 0.85rem 1.75rem;
    border-radius: var(--border-radius);
    font-weight: 700;
    text-decoration: none;
    border: 2px solid transparent;
    transition: all var(--transition-speed) ease;
    cursor: pointer;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--primary-blue);
    color: var(--white);
    text-decoration: none;
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

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

.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.filter-controls input,
.filter-controls select {
    width: 100%;
    padding: 0.85rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.form-group input:focus,
.form-group textarea:focus,
.filter-controls input:focus,
.filter-controls select:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 118, 192, 0.25);
}

.privacy-note {
    font-size: 0.875rem;
    color: #6c757d;
    margin-top: 1rem;
}

/* 8. Page-Specific Styles
--------------------------------------------- */
.hero {
    background: linear-gradient(rgba(0, 45, 98, 0.85), rgba(0, 45, 98, 0.85)), url('../img/placeholder-hero-bg.png') no-repeat center center;
    background-size: cover;
    color: var(--white);
    padding-block: 8rem;
    text-align: center;
}

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

.hero .subtitle {
    font-size: 1.25rem;
    max-width: 650px;
    margin-inline: auto;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.page-header {
    background-color: var(--neutral-light);
    padding-block: 4rem;
    border-bottom: 1px solid var(--border-color);
}

.value-card {
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    background-color: var(--white);
    transition: all var(--transition-speed) ease;
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 45, 98, 0.08);
}

.report-card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow var(--transition-speed) ease, transform var(--transition-speed) ease;
}

.report-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 45, 98, 0.1);
}

.card-image-wrapper {
    overflow: hidden;
}

.report-card img {
    aspect-ratio: 16 / 9;
    object-fit: cover;
    transition: transform var(--transition-speed) ease;
}

.report-card:hover img {
    transform: scale(1.05);
}

.report-card .card-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.report-card .card-tag {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 0.5rem;
}

.report-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.report-card p {
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.report-card .read-more {
    font-weight: 700;
    align-self: flex-start;
}

[dir="rtl"] .report-card .read-more {
    align-self: flex-end;
}

.timeline {
    list-style: none;
    position: relative;
    padding-inline-start: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    inset-inline-start: 10px;
    width: 3px;
    background-color: var(--neutral-dark);
}

.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 5px;
    inset-inline-start: -2.3rem;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--accent-cyan);
    border: 3px solid var(--white);
    box-shadow: 0 0 0 3px var(--accent-cyan);
}

.timeline-item h3 {
    font-size: 1.25rem;
}

.team-card {
    text-align: center;
}

.team-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin-inline: auto;
    margin-bottom: 1rem;
    border: 4px solid var(--white);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.team-card:hover .team-photo {
    transform: scale(1.05);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.team-name {
    font-size: 1.25rem;
}

.team-role {
    font-size: 1rem;
    color: #6c757d;
    margin-bottom: 0.5rem;
}

.contact-layout {
    display: grid;
    gap: 4rem;
}

.map-container {
    margin-top: 1.5rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.filter-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 2rem;
}

.filter-group {
    flex-grow: 1;
    min-width: 200px;
}

.no-results {
    text-align: center;
    padding: 4rem;
    font-size: 1.25rem;
}

/* Event Page Styles */
.event-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.event-card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    transition: box-shadow var(--transition-speed) ease, transform var(--transition-speed) ease;
}

.event-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 45, 98, 0.1);
}

.event-details {
    flex-grow: 1;
}

.event-title {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.event-meta {
    font-size: 1rem;
    color: #6c757d;
}

.event-meta .event-date {
    font-weight: 700;
}

.event-action {
    flex-shrink: 0;
}

/* 9. Accessibility Enhancements
--------------------------------------------- */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--primary-blue);
    color: white;
    padding: 1rem;
    z-index: 9999;
    transition: top 0.3s ease-in-out;
}

.skip-link:focus {
    top: 0;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 3px solid var(--accent-cyan);
    outline-offset: 3px;
    box-shadow: none;
}

/* 10. Animations
--------------------------------------------- */
.hero h1,
.hero .subtitle,
.hero .btn {
    animation: fadeInDown 0.8s ease-out both;
}

.value-card,
.report-card,
.team-card,
.event-card {
    animation: fadeInUp 0.6s ease-out both;
}

.hero .subtitle {
    animation-delay: 0.2s;
}

.hero .btn {
    animation-delay: 0.4s;
}

.grid-3>*:nth-child(2),
.grid-4>*:nth-child(2) {
    animation-delay: 0.1s;
}

.grid-3>*:nth-child(3),
.grid-4>*:nth-child(3) {
    animation-delay: 0.2s;
}

.grid-4>*:nth-child(4) {
    animation-delay: 0.3s;
}

.event-list>*:nth-child(2) {
    animation-delay: 0.1s;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 11. Responsive Media Queries
--------------------------------------------- */
@media (min-width: 768px) {
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
    }

    .contact-layout {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }

    .site-footer-bottom .footer-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

@media (min-width: 1200px) {
    .grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767px) {

    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .section-padding {
        padding-block: 3.5rem;
    }

    .header-brand {
        gap: 1rem;
    }

    .horizon-badge {
        height: 35px;
    }

    .logo {
        height: 40px;
    }

    .logo-text {
        font-size: 1.1rem;
    }

    .footer-logos {
        gap: 1rem;
    }

    .footer-logo {
        height: 50px;
    }

    .main-nav ul {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        text-align: center;
        border-bottom: 1px solid var(--border-color);
        padding: 1rem 0;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    }

    .main-nav ul.active {
        display: flex;
    }

    .main-nav li {
        width: 100%;
    }

    .main-nav a {
        display: block;
        padding: 1rem;
        border-bottom: none;
    }

    .main-nav a::after {
        display: none;
    }

    .mobile-nav-toggle {
        display: block;
        z-index: 1001;
        width: 30px;
        height: 22px;
        position: relative;
    }

    .mobile-nav-toggle .icon-bar {
        display: block;
        width: 100%;
        height: 3px;
        background-color: var(--primary-blue);
        border-radius: 1px;
        position: absolute;
        transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .mobile-nav-toggle .icon-bar:nth-child(1) {
        top: 0;
    }

    .mobile-nav-toggle .icon-bar:nth-child(2) {
        top: 50%;
        transform: translateY(-50%);
    }

    .mobile-nav-toggle .icon-bar:nth-child(3) {
        bottom: 0;
    }

    .mobile-nav-toggle[aria-expanded="true"] .icon-bar:nth-child(1) {
        transform: translateY(9.5px) rotate(45deg);
    }

    .mobile-nav-toggle[aria-expanded="true"] .icon-bar:nth-child(2) {
        opacity: 0;
    }

    .mobile-nav-toggle[aria-expanded="true"] .icon-bar:nth-child(3) {
        transform: translateY(-9.5px) rotate(-45deg);
    }

    .event-card {
        flex-direction: column;
        align-items: flex-start;
        text-align: start;
    }

    .event-title {
        font-size: 1.5rem;
    }

    .event-action {
        width: 100%;
    }

    .event-action .btn {
        width: 100%;
        text-align: center;
    }
}

@media (min-width: 992px) {
    .grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }
}