/* =====================================================
   GREENHOUSE DAGGERS - Green Themed Website
   ===================================================== */

/* CSS Variables - Green Color Palette */
:root {
    /* Primary Colors - Green Theme */
    --primary-green: #1B4D3E;
    --primary-green-light: #2A6B55;
    --primary-green-dark: #143D31;
    --accent-gold: #D4AF37;
    --accent-cream: #F5F5F0;
    --text-dark: #1A1A1A;

    /* Green Variations */
    --green-forest: #1B4D3E;
    --green-sage: #4A7C59;
    --green-mint: #8FBC8F;
    --green-deep: #0D3320;

    /* Neutral Tones */
    --white: #FFFFFF;
    --off-white: #F8FAF8;
    --light-gray: #E8EDE8;
    --medium-gray: #9A9A9A;
    --dark-gray: #4A4A4A;
    --black: #1A1A1A;

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 4rem;
    --space-xxl: 6rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 30px rgba(27, 77, 62, 0.4);
}

/* =====================================================
   RESET & BASE STYLES
   ===================================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--primary-green);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* =====================================================
   NAVIGATION
   ===================================================== */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 51, 32, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.logo-icon {
    font-size: 1.75rem;
}

.nav-links {
    display: flex;
    gap: var(--space-xl);
}

.nav-links a {
    color: var(--accent-cream);
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    padding: var(--space-sm) 0;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gold);
    transition: width var(--transition-medium);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--accent-gold);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--accent-gold);
    transition: var(--transition-fast);
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--green-deep) 0%, var(--primary-green) 50%, var(--green-forest) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(212, 175, 55, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(143, 188, 143, 0.15) 0%, transparent 50%),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23d4af37' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--space-xl);
    max-width: 800px;
}

.mystery-badge {
    display: inline-block;
    background: rgba(143, 188, 143, 0.2);
    border: 1px solid var(--green-mint);
    color: var(--green-mint);
    padding: var(--space-sm) var(--space-lg);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: var(--space-lg);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(143, 188, 143, 0.4); }
    50% { box-shadow: 0 0 20px 5px rgba(143, 188, 143, 0.2); }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

.title-line {
    display: block;
    color: var(--white);
}

.title-line.accent {
    color: var(--accent-gold);
    text-shadow: 0 0 40px rgba(212, 175, 55, 0.5);
}

.hero-tagline {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-style: italic;
    color: var(--accent-cream);
    opacity: 0.9;
    margin-bottom: var(--space-xl);
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-medium);
}

.btn-primary {
    background: var(--accent-gold);
    color: var(--primary-green-dark);
    border-color: var(--accent-gold);
}

.btn-primary:hover {
    background: transparent;
    color: var(--accent-gold);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

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

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--accent-cream);
    opacity: 0.7;
    animation: bounce 2s ease-in-out infinite;
}

.scroll-indicator span {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 1px;
    margin-bottom: var(--space-sm);
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    margin: 0 auto;
    border-right: 2px solid var(--accent-cream);
    border-bottom: 2px solid var(--accent-cream);
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* =====================================================
   SECTION STYLES
   ===================================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-badge {
    display: inline-block;
    background: var(--primary-green);
    color: var(--accent-gold);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--accent-cream);
    opacity: 0.85;
    max-width: 600px;
    margin: 0 auto;
}

/* =====================================================
   MUSIC SECTION
   ===================================================== */
.music-section {
    padding: var(--space-xxl) 0;
    background: var(--primary-green-light);
    position: relative;
}

.music-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(to bottom, var(--primary-green-dark), transparent);
    opacity: 0.3;
}

.music-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

/* Music Card */
.music-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium);
    border: 1px solid var(--light-gray);
}

.music-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-gold);
}

.card-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.card-overlay {
    position: absolute;
    inset: 0;
    background: rgba(27, 77, 62, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.music-card:hover .card-overlay {
    opacity: 1;
}

.play-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-green-dark);
    transform: scale(0.8);
    transition: transform var(--transition-medium);
}

.music-card:hover .play-icon {
    transform: scale(1);
}

.card-content {
    padding: var(--space-lg);
}

.track-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: var(--space-xs);
}

.track-type {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--green-sage);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-md);
}

/* Streaming Links */
.streaming-links {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.stream-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    background: var(--light-gray);
    color: var(--dark-gray);
}

.stream-btn svg {
    width: 18px;
    height: 18px;
}

.stream-btn:hover {
    transform: translateY(-2px);
}

.stream-btn.spotify:hover {
    background: #1DB954;
    color: white;
}

.stream-btn.apple:hover {
    background: #FA243C;
    color: white;
}

.stream-btn.youtube:hover {
    background: #FF0000;
    color: white;
}

.stream-btn.deezer:hover {
    background: #FF0092;
    color: white;
}

.stream-btn.amazon:hover {
    background: #FF9900;
    color: white;
}

.stream-btn.tidal:hover {
    background: #000000;
    color: white;
}

/* =====================================================
   ABOUT SECTION
   ===================================================== */
.about-section {
    padding: var(--space-xxl) 0;
    background: var(--primary-green);
    color: var(--accent-cream);
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3z' fill='%238FBC8F' fill-opacity='0.08'/%3E%3C/svg%3E");
    opacity: 0.5;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.about-content .section-badge {
    background: rgba(143, 188, 143, 0.2);
    border: 1px solid var(--green-mint);
    color: var(--green-mint);
}

.about-content .section-title {
    color: var(--white);
}

.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: var(--space-md);
    opacity: 0.9;
}

.about-text strong {
    color: var(--accent-gold);
}

/* Member Cards */
.member-cards {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.member-card {
    flex: 1;
    background: rgba(143, 188, 143, 0.1);
    border: 1px solid rgba(143, 188, 143, 0.3);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: center;
    transition: all var(--transition-medium);
}

.member-card:hover {
    background: rgba(143, 188, 143, 0.2);
    transform: translateY(-4px);
}

.member-icon {
    display: block;
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.member-role {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--accent-cream);
}

/* Visual Card */
.about-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-card {
    width: 280px;
    height: 320px;
    background: linear-gradient(135deg, var(--green-sage), var(--primary-green-dark));
    border: 3px solid var(--accent-gold);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-medium);
}

.visual-card:hover {
    transform: scale(1.02);
}

.visual-icon {
    font-size: 5rem;
    margin-bottom: var(--space-lg);
}

.visual-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-cream);
    text-align: center;
    padding: 0 var(--space-lg);
}

/* =====================================================
   BOOKING SECTION
   ===================================================== */
.booking-section {
    padding: var(--space-xxl) 0;
    background: linear-gradient(180deg, var(--primary-green-light) 0%, var(--primary-green) 100%);
}

.booking-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-xl);
}

.booking-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.info-card {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-gold);
    backdrop-filter: blur(10px);
    transition: all var(--transition-medium);
}

.info-card:hover {
    transform: translateX(8px);
    background: rgba(255, 255, 255, 0.15);
}

.info-icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
    display: block;
}

.info-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: var(--space-sm);
}

.info-card p {
    font-size: 0.9rem;
    color: var(--accent-cream);
    line-height: 1.6;
    opacity: 0.9;
}

/* Booking Form */
.booking-form {
    background: var(--white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--light-gray);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-green);
    margin-bottom: var(--space-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--space-md);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    background: var(--off-white);
    color: var(--text-dark);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(27, 77, 62, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--medium-gray);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234A4A4A' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    width: 100%;
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
    margin-top: var(--space-md);
}

.btn-icon {
    font-size: 1.25rem;
    transition: transform var(--transition-fast);
}

.btn-submit:hover .btn-icon {
    transform: translateX(4px);
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
    background: var(--green-deep);
    color: var(--accent-cream);
    padding: var(--space-xxl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-brand .logo-icon {
    font-size: 2rem;
}

.footer-brand .logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.footer-tagline {
    margin-top: var(--space-md);
    font-style: italic;
    opacity: 0.8;
}

.footer-links h4,
.footer-social h4 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    color: var(--accent-gold);
    margin-bottom: var(--space-md);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    opacity: 0.8;
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent-gold);
    padding-left: var(--space-sm);
}

.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-link {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: rgba(143, 188, 143, 0.1);
    border: 1px solid rgba(143, 188, 143, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--green-mint);
    transition: all var(--transition-fast);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.social-link:hover {
    background: var(--accent-gold);
    color: var(--primary-green-dark);
    transform: translateY(-4px);
}

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(143, 188, 143, 0.2);
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.7;
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .about-visual {
        order: -1;
    }

    .visual-card {
        width: 220px;
        height: 280px;
    }

    .visual-icon {
        font-size: 4rem;
    }

    .booking-content {
        grid-template-columns: 1fr;
    }

    .booking-info {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .info-card {
        flex: 1 1 calc(50% - var(--space-md));
    }

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

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--green-deep);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        border-top: 1px solid rgba(143, 188, 143, 0.2);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .music-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .member-cards {
        flex-direction: column;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .info-card {
        flex: 1 1 100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-links ul {
        align-items: center;
    }

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 0 var(--space-md);
    }

    .hero-content {
        padding: var(--space-lg);
    }

    .booking-form {
        padding: var(--space-lg);
    }

    .visual-card {
        width: 180px;
        height: 220px;
    }

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

    .visual-text {
        font-size: 1rem;
    }
}

/* =====================================================
   ANIMATIONS
   ===================================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.music-card {
    animation: fadeInUp 0.6s ease-out both;
}

.music-card:nth-child(1) { animation-delay: 0.1s; }
.music-card:nth-child(2) { animation-delay: 0.2s; }
.music-card:nth-child(3) { animation-delay: 0.3s; }
.music-card:nth-child(4) { animation-delay: 0.4s; }
.music-card:nth-child(5) { animation-delay: 0.5s; }

/* Smooth scroll padding for fixed nav */
section {
    scroll-margin-top: 80px;
}