:root {
    --bg-color: #f0fdf4; /* Light green bg */
    --text-color: #064e3b; /* Dark green text */
    --text-muted: #475569;
    --primary-color: #10b981; /* Vibrant emerald */
    --primary-hover: #059669;
    --accent-color: #3b82f6; /* Ocean blue accent */
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(255, 255, 255, 0.6);
    --card-bg: #ffffff;
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.08);
    --border-color: #e2e8f0;
}

body.dark-mode {
    --bg-color: #051c14; /* Deep nocturnal ecology dark green */
    --text-color: #ecfdf5; /* Crisp mint white */
    --text-muted: #94a3b8;
    --primary-color: #10b981; /* Emerald green */
    --primary-hover: #34d399;
    --accent-color: #06b6d4; /* Electric cyan accent */
    --glass-bg: rgba(15, 41, 30, 0.75);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-bg: #0b291d;
    --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.35);
    --border-color: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    background-image: radial-gradient(circle at top left, rgba(16, 185, 129, 0.15), transparent 40%),
                      radial-gradient(circle at bottom right, rgba(59, 130, 246, 0.15), transparent 40%);
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Header */
.glass-header {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    flex-wrap: wrap;
    gap: 1rem;
}

.header-logo-group h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary-color);
}

.header-subtitle {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    max-width: 650px;
}

.cohosts-badge {
    margin-top: 0.4rem;
    font-size: 0.85rem;
    color: var(--accent-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.header-submit-buttons {
    display: flex;
    gap: 0.5rem;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.65rem 1.25rem;
    border-radius: 20px;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 0.65rem 1.25rem;
    border-radius: 20px;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-secondary:hover {
    background: rgba(59, 130, 246, 0.1);
    transform: translateY(-2px);
}

.btn-mailing {
    background: linear-gradient(135deg, #0a66c2, #0077b5);
    color: white;
    border: none;
    padding: 0.65rem 1.25rem;
    border-radius: 20px;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-mailing:hover {
    background: linear-gradient(135deg, #004182, #0a66c2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(10, 102, 194, 0.3);
}

.btn-theme-toggle {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--primary-color);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-family: 'Outfit', sans-serif;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-theme-toggle:hover {
    background: var(--primary-color);
    color: white;
}

.header-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.hamburger-btn {
    display: none;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--primary-color);
    color: var(--text-color);
    border-radius: 50%;
    font-size: 1.15rem;
    line-height: 1;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

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

/* Mobile Navigation */
@media (max-width: 768px) {
    .glass-header {
        position: relative;
        padding: 0.75rem 1.25rem;
        flex-wrap: nowrap;
        justify-content: space-between;
    }

    .header-logo-group {
        min-width: 0;
    }

    .header-logo-group h1 {
        font-size: 1.05rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .header-subtitle,
    .cohosts-badge {
        display: none;
    }

    .header-actions {
        justify-content: flex-end;
        gap: 0.6rem;
        flex-shrink: 0;
    }

    .btn-theme-toggle {
        width: 42px;
        height: 42px;
        padding: 0;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.15rem;
        flex-shrink: 0;
    }

    .btn-theme-toggle .theme-label {
        display: none;
    }

    .hamburger-btn {
        display: flex;
    }

    .header-menu {
        display: none;
        position: absolute;
        top: calc(100% + 0.5rem);
        left: 1rem;
        right: 1rem;
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        background: var(--card-bg);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--glass-border);
        border-radius: 16px;
        box-shadow: var(--shadow);
        padding: 1rem;
        z-index: 500;
    }

    .header-menu.open {
        display: flex;
    }

    .nav-tabs {
        flex-direction: column;
        width: 100%;
        border-radius: 12px;
    }

    .tab-btn {
        width: 100%;
        text-align: left;
    }

    .header-submit-buttons {
        flex-direction: column;
        width: 100%;
    }

    .header-submit-buttons button {
        width: 100%;
    }
}

/* Navigation Tabs */
.nav-tabs {
    display: flex;
    background: rgba(16, 185, 129, 0.1);
    padding: 0.3rem;
    border-radius: 30px;
    gap: 0.25rem;
}

.tab-btn {
    border: none;
    background: transparent;
    padding: 0.5rem 1.1rem;
    border-radius: 25px;
    font-family: 'Outfit', sans-serif;
    font-weight: 500;
    cursor: pointer;
    color: var(--text-color);
    transition: all 0.2s ease;
}

.tab-btn.active {
    background: var(--card-bg);
    color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    font-weight: 600;
}

/* Main Content */
main {
    max-width: 1250px;
    margin: 2rem auto;
    padding: 0 1rem;
}

/* Controls Bar */
.controls-bar {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.glass-panel-sm {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 1rem 1.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

select, input[type="text"] {
    padding: 0.55rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-color);
    font-family: 'Outfit', sans-serif;
    outline: none;
    transition: border-color 0.2s ease;
}

select:focus, input[type="text"]:focus {
    border-color: var(--primary-color);
}

.search-group {
    flex-grow: 1;
}

.search-group input {
    width: 100%;
}

/* Gallery Grid */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    align-items: start;
}

.project-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.15);
}

.project-screenshot {
    width: 100%;
    height: auto;
    max-height: 220px;
    object-fit: contain;
    border-radius: 14px;
    margin-bottom: 1rem;
    display: block;
}

.project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.project-card h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.tag-badge {
    background: rgba(16, 185, 129, 0.15);
    color: var(--primary-color);
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.tag-badge.badge-other {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-color);
}

.project-card .author {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.desc-content {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
    flex-grow: 1;
}

.card-footer-link {
    font-weight: 600;
    color: var(--accent-color);
    text-decoration: none;
    font-size: 0.9rem;
}

/* Learn More View */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 24px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.learn-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
    text-align: left;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.12), rgba(59, 130, 246, 0.12));
}

@media (max-width: 900px) {
    .learn-hero {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

.learn-hero h2 {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}

.hosts-strip {
    display: flex;
    justify-content: flex-start;
    gap: 0.75rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

@media (max-width: 900px) {
    .hosts-strip {
        justify-content: center;
    }
}

.host-pill {
    background: var(--card-bg);
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.host-pill:hover {
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

/* Canva Graphic Frame */
.canva-figure-container {
    text-align: center;
}

.figure-header h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.figure-header p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.graphic-frame {
    max-width: 650px;
    margin: 0 auto;
    border-radius: 16px;
    overflow: hidden;
    background: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.graphic-frame img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 14px;
}

.graphic-fallback {
    padding: 3rem 1.5rem;
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-muted);
}

.fallback-icon {
    font-size: 3rem;
}

.learn-body-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
    margin-bottom: 2rem;
}

@media (max-width: 900px) {
    .learn-body-grid {
        grid-template-columns: 1fr;
    }
}

/* Four Pillar Grid (WHO, WHAT, WHY, HOW) */
.four-pillar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.pillar-badge {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.8rem;
    margin-bottom: 0.75rem;
}

.pillar-list {
    margin-left: 1.25rem;
    font-size: 0.95rem;
}

.pillar-list li {
    margin-bottom: 0.6rem;
}

/* Dan Morris Tribute Card */
.dan-morris-tribute {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(16, 185, 129, 0.1));
    flex-wrap: wrap;
}

.tribute-badge {
    background: var(--accent-color);
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

.dan-morris-tribute h3 {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

/* Resources Tab */
.resource-filters {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.res-cat-pill {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-family: 'Outfit', sans-serif;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.res-cat-pill.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.resource-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
}

.resource-card h3 {
    color: var(--primary-color);
    font-size: 1.15rem;
    margin-bottom: 0.25rem;
}

.resource-author {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.resource-tags {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.tag-mini {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
    padding: 0.15rem 0.5rem;
    border-radius: 8px;
    font-size: 0.75rem;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(5, 28, 20, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal.hidden {
    display: none !important;
}

.modal-content {
    width: 90%;
    max-width: 620px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-lg {
    max-width: 800px;
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-color);
}

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

@media (max-width: 600px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 500;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
}

.submission-type-toggle {
    margin-top: 0.35rem;
    margin-bottom: 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 0.5rem;
}

.submission-type-toggle label {
    cursor: pointer;
    font-weight: 500;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.65rem 0.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-color);
    transition: all 0.2s ease;
    user-select: none;
    text-align: center;
}

.submission-type-toggle label:hover {
    border-color: var(--primary-color);
    background: rgba(16, 185, 129, 0.08);
}

.submission-type-toggle label:has(input:checked),
.submission-type-toggle label.active-format {
    background: rgba(16, 185, 129, 0.15);
    border-color: var(--primary-color);
    color: var(--primary-color);
    font-weight: 600;
}

.submission-type-toggle input[type="radio"] {
    accent-color: var(--primary-color);
    width: auto;
}

.llm-prompt-helper-card {
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid var(--accent-color);
    padding: 1rem;
    border-radius: 14px;
    margin-bottom: 1.25rem;
}

.helper-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
}

.btn-copy-prompt {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 0.35rem 0.75rem;
    border-radius: 12px;
    font-family: 'Outfit', sans-serif;
    font-size: 0.8rem;
    cursor: pointer;
}

.helper-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.drag-drop-zone {
    border: 2px dashed var(--primary-color);
    border-radius: 12px;
    padding: 1.25rem;
    text-align: center;
    background: rgba(16, 185, 129, 0.04);
    margin-bottom: 1rem;
}

.hidden-input { display: none; }
.hidden { display: none !important; }
.w-full { width: 100%; }

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 20px;
    font-weight: 600;
    box-shadow: var(--shadow);
    z-index: 2000;
    transition: opacity 0.3s ease;
}

/* Footer */
.main-footer {
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.main-footer a {
    color: var(--accent-color);
    text-decoration: none;
}