:root {
    /* Color Palette */
    --color-dark-blue: #003d5e;
    --color-cream: #f9f9f4;
    --color-teal: #008891;
    --color-green: #0ea344;
    --color-yellow: #f7bb00;

    /* Semantic Colors */
    --bg-main: var(--color-cream);
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-light: #ffffff;

    /* Layout */
    --container-max-w: 1200px;
    --border-radius-lg: 16px;
    --border-radius-md: 8px;
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Utilities */
.container {
    width: 100%;
    max-width: var(--container-max-w);
    margin: 0 auto;
    padding: 0 24px;
}

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

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

.text-yellow {
    color: var(--color-yellow);
}

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

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

.max-w-m {
    max-width: 800px;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 2rem;
}

.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-3 {
    margin-top: 2rem;
}

.mt-4 {
    margin-top: 3rem;
}

.text-sm {
    font-size: 0.875rem;
}

.text-xs {
    font-size: 0.75rem;
}

.opacity-80 {
    opacity: 0.8;
}

.align-center {
    display: block;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.grid-2-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

@media (max-width: 768px) {
    .grid-2-cols {
        grid-template-columns: 1fr;
    }

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

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

a:hover {
    color: var(--color-dark-blue);
}

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

.section-title {
    font-size: 2.25rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--color-yellow);
    border-radius: 2px;
}

.section-title.text-center::after {
    left: 50%;
    transform: translateX(-50%);
}

.section-title.dark::after {
    background-color: var(--color-teal);
}

.section-title.line-yellow::after {
    background-color: var(--color-yellow);
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-green);
    color: white;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--border-radius-md);
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    box-shadow: 0 4px 14px 0 rgba(14, 163, 68, 0.39);
}

.btn-primary:hover {
    background-color: #0c8c3a;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 163, 68, 0.4);
}

.btn-primary .icon {
    margin-right: 8px;
}

.btn-cta-nav {
    background-color: var(--color-yellow);
    color: var(--color-dark-blue);
    font-weight: 700;
    padding: 8px 16px;
    border-radius: var(--border-radius-md);
    transition: all 0.3s;
}

.btn-cta-nav:hover {
    background-color: #e5ad00;
    color: var(--color-dark-blue);
    transform: translateY(-2px);
}

.cta-large {
    font-size: 1.125rem;
    padding: 16px 32px;
}

/* Navigation */
.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 16px 0;
}

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

.logo {
    font-size: 1.5rem;
    color: var(--color-dark-blue);
    margin: 0;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--color-teal);
}

.nav-links {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-links a:not(.btn-cta-nav) {
    color: var(--text-secondary);
    font-weight: 500;
}

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

/* Mobile Menu (Hamburger) */
.nav-toggle-label {
    display: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.hamburger-box {
    width: 30px;
    height: 24px;
    display: inline-block;
    position: relative;
}

.hamburger-inner {
    display: block;
    top: 50%;
    margin-top: -2px;
}

.hamburger-inner,
.hamburger-inner::before,
.hamburger-inner::after {
    width: 30px;
    height: 3px;
    background-color: var(--color-dark-blue);
    position: absolute;
    transition-property: transform;
    transition-duration: 0.15s;
    transition-timing-function: ease;
    border-radius: 4px;
}

.hamburger-inner::before,
.hamburger-inner::after {
    content: "";
    display: block;
}

.hamburger-inner::before {
    top: -10px;
}

.hamburger-inner::after {
    bottom: -10px;
}

/* Hamburger Animation (Spring) */
.nav-toggle:checked~.nav-toggle-label .hamburger-inner {
    transition-delay: 0.22s;
    background-color: transparent;
}

.nav-toggle:checked~.nav-toggle-label .hamburger-inner::before {
    top: 0;
    transition: top 0.1s 0.15s cubic-bezier(0.33333, 0, 0.66667, 0.33333), transform 0.13s 0.22s cubic-bezier(0.215, 0.61, 0.355, 1);
    transform: translate3d(0, 10px, 0) rotate(45deg);
}

.nav-toggle:checked~.nav-toggle-label .hamburger-inner::after {
    top: 0;
    transition: top 0.2s cubic-bezier(0.33333, 0, 0.66667, 0.33333), transform 0.13s 0.22s cubic-bezier(0.215, 0.61, 0.355, 1);
    transform: translate3d(0, 10px, 0) rotate(-45deg);
}

@media (max-width: 768px) {
    .nav-toggle-label {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 100%;
        background-color: white;
        flex-direction: column;
        justify-content: center;
        transition: right 0.4s ease;
        z-index: 1000;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }

    .nav-links a:not(.btn-cta-nav) {
        font-size: 1.25rem;
    }

    .nav-toggle:checked~.nav-links {
        right: 0;
    }
}

/* Hero Section */
.hero {
    background-color: var(--color-dark-blue);
    color: white;
    padding: 5rem 0 6rem;
    position: relative;
    overflow: hidden;
}

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

.badge {
    display: inline-block;
    background-color: rgba(247, 187, 0, 0.15);
    color: var(--color-yellow);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border: 1px solid rgba(247, 187, 0, 0.3);
}

.hero h2 {
    font-size: 3rem;
    line-height: 1.1;
    margin-bottom: 1rem;
    max-width: 800px;
}

.hero .subtitle {
    font-size: 1.25rem;
    color: #cbd5e1;
    margin-bottom: 3rem;
    max-width: 600px;
}

.hero-invitation {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 32px;
    border-radius: var(--border-radius-lg);
    max-width: 700px;
    backdrop-filter: blur(10px);
}

.hero-invitation h3 {
    color: var(--color-yellow);
    margin-bottom: 1.5rem;
}

.hero-invitation p {
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

.main-cta {
    margin-top: 1.5rem;
}

.hero-shape {
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-teal) 0%, transparent 70%);
    opacity: 0.2;
    z-index: 1;
}

@media (max-width: 768px) {
    .hero h2 {
        font-size: 2rem;
    }

    .hero-invitation {
        padding: 24px;
    }
}

/* Participation Section */
.participation-details {
    padding: 5rem 24px;
}

.card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
    border-top: 4px solid var(--color-teal);
    height: 100%;
}

.card-important {
    border-top-color: var(--color-teal);
}

.card-how {
    border-top-color: var(--color-yellow);
}

.card h3 {
    color: var(--color-dark-blue);
    font-size: 1.5rem;
}

ul.custom-list {
    list-style: none;
    margin-top: 1.5rem;
}

ul.custom-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
}

ul.custom-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-teal);
    font-weight: bold;
}

.highlight-box {
    background-color: rgba(0, 136, 145, 0.1);
    border-left: 4px solid var(--color-teal);
    padding: 16px;
    margin: 1.5rem 0;
    border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
    font-weight: 500;
    color: var(--color-dark-blue);
}

.confidentiality {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

.confidentiality h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
}

.confidentiality ul {
    margin-bottom: 1rem;
    padding-left: 20px;
    color: var(--text-secondary);
}

.link-secondary {
    display: inline-block;
    color: var(--color-dark-blue);
    font-weight: 600;
    text-decoration: underline;
    text-decoration-color: rgba(0, 61, 94, 0.3);
}

/* About IDEA Section */
.about-idea {
    padding: 5rem 0;
}

.diagram-container {
    background-color: white;
    border-radius: var(--border-radius-lg);
    padding: 24px;
    margin: 2rem auto;
    max-width: 600px;
    box-shadow: var(--shadow-lg);
}

.idea-diagram-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

.stage-card {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 32px;
    border-radius: var(--border-radius-lg);
    text-align: left;
    transition: transform 0.3s;
}

.stage-card h4 {
    font-size: 1.25rem;
    color: var(--color-yellow);
}

.active-stage {
    background: white;
    color: var(--text-primary);
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.active-stage h4 {
    color: var(--color-dark-blue);
}

.stage-card .note {
    font-size: 0.875rem;
    margin-top: 1rem;
    opacity: 0.8;
    font-style: italic;
}

.callout {
    padding: 24px;
    border-radius: var(--border-radius-md);
    background: rgba(255, 255, 255, 0.1);
}

.callout-yellow {
    background: rgba(247, 187, 0, 0.15);
    border: 1px solid rgba(247, 187, 0, 0.3);
}

.callout-teal {
    background: rgba(0, 136, 145, 0.1);
    border-left: 4px solid var(--color-teal);
}

/* DCEA Section */
.dcea-section {
    padding: 5rem 24px;
}

.dcea-content>p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.dcea-steps {
    margin: 3rem 0;
    background: white;
}

.dcea-steps h4 {
    color: var(--color-dark-blue);
    margin-bottom: 1.5rem;
}

.steps-list {
    margin-left: 20px;
    margin-bottom: 1.5rem;
}

.steps-list li {
    margin-bottom: 8px;
    padding-left: 8px;
}

.steps-list li::marker {
    color: var(--color-teal);
    font-weight: bold;
}

.interactive-box {
    background: var(--color-cream);
    border: 2px dashed var(--color-teal);
    padding: 32px;
    border-radius: var(--border-radius-lg);
}

.mini-list {
    margin-left: 20px;
}

.mini-list li {
    margin-bottom: 4px;
}

/* Context Section */
.context-section {
    padding: 5rem 0;
}

.text-cols p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 1.5rem;
}

.highlight-text-yellow {
    border-left: 4px solid var(--color-yellow);
    padding-left: 16px;
    color: white !important;
    font-weight: 500;
}

/* Target Audience */
.target-audience {
    padding: 5rem 24px;
}

.audience-card {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 900px;
    margin: 0 auto;
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 2rem;
}

.audience-item {
    display: flex;
    align-items: flex-start;
    padding: 16px;
    background: var(--color-cream);
    border-radius: var(--border-radius-md);
    transition: transform 0.2s;
}

.audience-item:hover {
    transform: translateY(-2px);
    background: #f0f0ea;
}

.icon-check {
    color: white;
    background: var(--color-green);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    flex-shrink: 0;
    font-size: 0.8rem;
    font-weight: bold;
}

.audience-item p {
    font-size: 0.95rem;
    font-weight: 500;
    line-height: 1.4;
    color: var(--color-dark-blue);
}

/* Animations */
@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

.animate-bounce {
    animation: bounce 2s infinite ease-in-out;
}

/* Footer */
.footer {
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 40px;
    padding: 0 24px;
}

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer h4 {
    color: var(--color-yellow);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 8px;
}

.footer h5 {
    color: var(--color-teal);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.clean-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.clean-list li {
    margin-bottom: 8px;
}

.footer p {
    color: rgba(255, 255, 255, 0.8);
}

.space-y-2 li {
    margin-bottom: 1rem;
}

.footer-bottom {
    text-align: center;
    margin-top: 4rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}