/* ============================================
   JUNIPER CIRCUIT - CSS STYLESHEET
   A routine library with natural, evergreen aesthetic
   ============================================ */

/* CSS Custom Properties */
:root {
    /* Color Palette - Forest/Evergreen Theme */
    --color-forest: #1a2e1a;
    --color-pine: #2d4a2d;
    --color-juniper: #4a6b4a;
    --color-sage: #7a9a7a;
    --color-moss: #a8c4a8;
    --color-meadow: #d4e6d4;
    --color-mist: #e8f0e8;
    --color-snow: #f5f8f5;
    --color-white: #ffffff;
    
    /* Accent Colors */
    --color-bark: #5c4a3a;
    --color-earth: #8b7355;
    --color-amber: #c9a227;
    
    /* Neutral Tones */
    --color-charcoal: #2a2a2a;
    --color-slate: #4a4a4a;
    --color-stone: #6a6a6a;
    --color-pebble: #9a9a9a;
    
    /* Typography */
    --font-display: 'DM Serif Display', Georgia, serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    
    /* Transitions */
    --transition-smooth: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Card Styles */
    --card-shadow: 0 2px 8px rgba(0,0,0,0.08);
    --card-shadow-hover: 0 8px 24px rgba(0,0,0,0.12);
    --card-radius: 4px;
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-charcoal);
    background: var(--color-snow);
}

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

/* Typography */
h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-forest);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-md);
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    margin-bottom: var(--space-sm);
}

h4 {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--color-pine);
}

p {
    margin-bottom: var(--space-sm);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(245, 248, 245, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-meadow);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    text-decoration: none;
    color: var(--color-forest);
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--color-juniper);
    animation: pulse-gentle 3s ease-in-out infinite;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}

.nav-links a {
    color: var(--color-slate);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-smooth);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-juniper);
    transition: width var(--transition-smooth);
}

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

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

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    padding: calc(var(--space-2xl) + 60px) 0 var(--space-2xl);
    background: linear-gradient(135deg, var(--color-mist) 0%, var(--color-snow) 50%, var(--color-meadow) 100%);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-label {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-juniper);
    margin-bottom: var(--space-sm);
}

.hero h1 {
    margin-bottom: var(--space-md);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-slate);
    max-width: 600px;
    margin: 0 auto var(--space-lg);
}

/* Button */
.btn {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--card-radius);
    transition: all var(--transition-smooth);
}

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

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

/* ============================================
   PULSE DOTS SEPARATOR
   ============================================ */

.pulse-separator {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-xl) 0;
    background: var(--color-snow);
}

.pulse-separator-alt {
    background: var(--color-mist);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-juniper);
    animation: pulse-dot 2s ease-in-out infinite;
}

.pulse-dot:nth-child(2) {
    animation-delay: 0.3s;
}

.pulse-dot:nth-child(3) {
    animation-delay: 0.6s;
}

@keyframes pulse-dot {
    0%, 100% {
        transform: scale(1);
        opacity: 0.4;
    }
    50% {
        transform: scale(1.5);
        opacity: 1;
    }
}

@keyframes pulse-gentle {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ============================================
   SECTIONS - General Styles
   ============================================ */

.section {
    padding: var(--space-2xl) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-xl);
}

.section-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-sage);
    margin-bottom: var(--space-xs);
}

.section-description {
    color: var(--color-slate);
    font-size: 1.1rem;
}

/* ============================================
   7-DAY CIRCUITS SECTION
   ============================================ */

.section-circuits {
    background: var(--color-white);
}

.circuits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--space-lg);
}

.circuit-card {
    background: var(--color-snow);
    border: 1px solid var(--color-meadow);
    border-radius: var(--card-radius);
    padding: var(--space-lg);
    position: relative;
    transition: all var(--transition-smooth);
}

.circuit-card:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-4px);
}

.circuit-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 4px 10px;
    background: var(--color-moss);
    color: var(--color-forest);
    border-radius: 2px;
}

.circuit-badge-mid {
    background: var(--color-amber);
    color: var(--color-charcoal);
}

.circuit-badge-adv {
    background: var(--color-forest);
    color: var(--color-white);
}

.circuit-card h3 {
    margin-bottom: var(--space-xs);
}

.circuit-tagline {
    font-style: italic;
    color: var(--color-stone);
    margin-bottom: var(--space-md);
}

.circuit-schedule {
    border-top: 1px solid var(--color-meadow);
    border-bottom: 1px solid var(--color-meadow);
    padding: var(--space-sm) 0;
    margin-bottom: var(--space-md);
}

.day {
    display: flex;
    justify-content: space-between;
    padding: var(--space-xs) 0;
    font-size: 0.9rem;
}

.day-label {
    font-weight: 600;
    color: var(--color-juniper);
    width: 40px;
}

.day-activity {
    color: var(--color-slate);
}

.circuit-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--color-pebble);
}

/* ============================================
   WORKOUT CARDS SECTION (Printable Style)
   ============================================ */

.section-cards {
    background: var(--color-mist);
}

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

.workout-card {
    background: var(--color-white);
    border: 2px solid var(--color-charcoal);
    border-radius: 0;
    padding: var(--space-md);
    position: relative;
    box-shadow: 4px 4px 0 var(--color-charcoal);
    transition: all var(--transition-smooth);
    
    /* Printable paper effect */
    background-image: 
        linear-gradient(var(--color-meadow) 1px, transparent 1px);
    background-size: 100% 1.7rem;
    background-position: 0 var(--space-xl);
}

.workout-card:hover {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 var(--color-charcoal);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-sm);
    border-bottom: 2px dashed var(--color-pebble);
}

.card-number {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--color-forest);
    line-height: 1;
}

.card-type {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-juniper);
    background: var(--color-meadow);
    padding: 2px 8px;
}

.workout-card h4 {
    font-family: var(--font-display);
    font-size: 1.35rem;
    margin-bottom: var(--space-xs);
}

.card-duration {
    font-size: 0.85rem;
    color: var(--color-stone);
    margin-bottom: var(--space-md);
}

.card-exercises {
    list-style: none;
    margin-bottom: var(--space-md);
}

.card-exercises li {
    display: flex;
    justify-content: space-between;
    padding: var(--space-xs) 0;
    border-bottom: 1px dotted var(--color-pebble);
    font-size: 0.9rem;
}

.card-exercises li:last-child {
    border-bottom: none;
}

.exercise-name {
    color: var(--color-charcoal);
}

.exercise-reps {
    color: var(--color-juniper);
    font-weight: 500;
}

.card-footer {
    padding-top: var(--space-sm);
    border-top: 2px solid var(--color-charcoal);
}

.card-tag {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-stone);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Print styles for workout cards */
@media print {
    .workout-card {
        break-inside: avoid;
        box-shadow: none;
        border: 2px solid #000;
    }
}

/* ============================================
   TRAILS GALLERY SECTION
   ============================================ */

.section-trails {
    background: var(--color-white);
}

.gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-sm);
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--card-radius);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4/3;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-item figcaption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-sm);
    background: linear-gradient(to top, rgba(26, 46, 26, 0.9), transparent);
    color: var(--color-white);
    font-size: 0.85rem;
    font-weight: 500;
    transform: translateY(100%);
    transition: transform var(--transition-smooth);
}

.gallery-item:hover figcaption {
    transform: translateY(0);
}

.gallery-item-wide {
    grid-column: span 2;
}

.gallery-item-wide img {
    aspect-ratio: 16/9;
}

/* ============================================
   STARTER PLAN ARTICLE
   ============================================ */

.section-article {
    background: var(--color-snow);
}

.article {
    max-width: 750px;
    margin: 0 auto;
}

.article-header {
    text-align: center;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-meadow);
}

.article-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-juniper);
    margin-bottom: var(--space-xs);
}

.article-meta {
    font-style: italic;
    color: var(--color-stone);
}

.article-body {
    font-size: 1.05rem;
    line-height: 1.85;
}

.article-body h3 {
    margin-top: var(--space-xl);
    margin-bottom: var(--space-sm);
    color: var(--color-pine);
}

.article-lead {
    font-size: 1.2rem;
    color: var(--color-slate);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.article-body blockquote {
    margin: var(--space-lg) 0;
    padding: var(--space-md) var(--space-lg);
    border-left: 4px solid var(--color-juniper);
    background: var(--color-mist);
    font-style: italic;
    color: var(--color-pine);
    font-size: 1.1rem;
}

.article-body ul,
.article-body ol {
    margin: var(--space-md) 0;
    padding-left: var(--space-lg);
}

.article-body li {
    margin-bottom: var(--space-xs);
}

.article-callout {
    margin: var(--space-xl) 0;
    padding: var(--space-lg);
    background: var(--color-forest);
    color: var(--color-white);
    border-radius: var(--card-radius);
}

.article-callout h4 {
    color: var(--color-moss);
    margin-bottom: var(--space-md);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.article-callout ol {
    padding-left: var(--space-md);
}

.article-callout li {
    margin-bottom: var(--space-sm);
    color: var(--color-meadow);
}

.article-callout li strong {
    color: var(--color-white);
}

.article-footer {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-meadow);
    text-align: center;
}

.article-footer p {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--color-juniper);
    font-style: italic;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--color-forest);
    color: var(--color-meadow);
    padding: var(--space-xl) 0 var(--space-lg);
    text-align: center;
}

.footer-brand {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-xs);
}

.footer-brand .logo-icon {
    color: var(--color-sage);
}

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

.footer-tagline {
    font-style: italic;
    color: var(--color-sage);
    margin-bottom: var(--space-lg);
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.footer-nav a {
    color: var(--color-moss);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-smooth);
}

.footer-nav a:hover {
    color: var(--color-white);
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--color-juniper);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gallery-item-wide {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .nav-links {
        gap: var(--space-md);
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero {
        padding-top: calc(var(--space-xl) + 100px);
    }
    
    .circuits-grid {
        grid-template-columns: 1fr;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery {
        grid-template-columns: 1fr;
    }
    
    .gallery-item-wide {
        grid-column: span 1;
    }
    
    .gallery-item figcaption {
        transform: translateY(0);
    }
    
    .footer-nav {
        flex-wrap: wrap;
        gap: var(--space-sm) var(--space-md);
    }
}

@media (max-width: 480px) {
    :root {
        --space-xl: 3rem;
        --space-2xl: 4rem;
    }
    
    .pulse-separator {
        gap: var(--space-sm);
    }
    
    .circuit-badge {
        position: static;
        display: inline-block;
        margin-bottom: var(--space-sm);
    }
    
    .workout-card {
        padding: var(--space-sm);
    }
    
    .article-body blockquote {
        padding: var(--space-sm) var(--space-md);
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .header,
    .pulse-separator,
    .btn {
        display: none;
    }
    
    .section {
        padding: var(--space-lg) 0;
        page-break-inside: avoid;
    }
    
    .hero {
        padding-top: var(--space-lg);
        background: none;
    }
    
    .workout-card {
        box-shadow: none;
        border: 1px solid #000;
        background-image: none;
    }
    
    .gallery-item img {
        filter: grayscale(100%);
    }
}