/* ==========================================================================
   STYLE 19: EMERALD DEPTH
   Deep emerald header/footer with light emerald body.
   Gold line accents, growth/renewal symbolism, clean grid feel.
   Modernized: CSS Nesting, Container Queries, @layer, oklch(), clamp(),
   :has(), scroll-driven animations, view transitions, light-dark().
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

/* --------------------------------------------------------------------------
   Layer Definitions
   -------------------------------------------------------------------------- */
@layer reset, base, components, utilities;

/* --------------------------------------------------------------------------
   Custom Property Overrides
   -------------------------------------------------------------------------- */
@layer base {
:root {
    --color-primary: oklch(0.35 0.08 165);
    --color-primary-rgb: 6, 78, 59;
    --color-secondary: oklch(0.68 0.16 160);
    --color-secondary-rgb: 16, 185, 129;
    --color-accent: oklch(0.74 0.10 80);
    --color-accent-rgb: 212, 168, 83;
    --color-text: oklch(0.30 0.08 165);
    --color-text-light: #3D6A5B;
    --color-text-inverse: oklch(0.97 0.01 165);
    --color-bg: oklch(0.97 0.02 165);
    --color-bg-alt: #FFFFFF;
    --color-bg-dark: oklch(0.35 0.08 165);
    --color-border: rgba(6, 78, 59, 0.12);
    --font-heading: 'Syne', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-weight-light: 400;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 10px;
    --radius-xl: 14px;
    --shadow-sm: 0 1px 4px rgba(6, 78, 59, 0.06);
    --shadow-md: 0 4px 16px rgba(6, 78, 59, 0.08);
    --shadow-lg: 0 8px 32px rgba(6, 78, 59, 0.10);
    --shadow-xl: 0 16px 48px rgba(6, 78, 59, 0.14);
    --hero-overlay: linear-gradient(180deg, rgba(6, 78, 59, 0.80), rgba(16, 185, 129, 0.50));
    --transition-fast: 0.12s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.45s ease;
}

/* --------------------------------------------------------------------------
   Dark Mode
   -------------------------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
    :root {
        --color-primary: oklch(0.60 0.10 165);
        --color-secondary: oklch(0.72 0.14 160);
        --color-accent: oklch(0.80 0.10 80);
        --color-text: oklch(0.92 0.01 165);
        --color-text-light: #7FAF9D;
        --color-text-inverse: oklch(0.10 0.04 165);
        --color-bg: oklch(0.14 0.04 170);
        --color-bg-alt: oklch(0.18 0.04 168);
        --color-bg-dark: oklch(0.10 0.05 170);
        --color-border: rgba(16, 185, 129, 0.15);
        --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.22);
        --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.30);
        --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.38);
        --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.45);
    }
}
} /* end @layer base */

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */
@layer base {
body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    view-transition-name: body;
}
} /* end @layer base */

/* --------------------------------------------------------------------------
   Typography — Display Headings, Clean Body
   -------------------------------------------------------------------------- */
@layer base {
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-text);
    letter-spacing: -0.03em;
    font-size: clamp(1rem, 2.5vw + 0.5rem, 3.5rem);
}

h1 {
    font-weight: 800;
    line-height: 1.05;
}

h2 {
    font-weight: var(--font-weight-bold);
    line-height: 1.1;
}

h3, h4 {
    font-weight: var(--font-weight-semibold);
}

h5, h6 {
    font-weight: var(--font-weight-medium);
    font-family: var(--font-body);
}

p, li {
    line-height: 1.75;
    color: var(--color-text);
}

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

    &:hover {
        color: var(--color-primary);
    }
}
} /* end @layer base */

/* --------------------------------------------------------------------------
   Cards — Clean with Gold Line Accent (Container Query enabled)
   -------------------------------------------------------------------------- */
@layer components {
.card,
.program-card,
.contact-card,
.blog-card,
.nav-card,
.sidebar-widget {
    container-type: inline-size;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: clamp(1rem, 3cqi, 2rem);
    transition: box-shadow var(--transition-base), border-color var(--transition-base);
    view-transition-name: card;

    &:hover {
        box-shadow: var(--shadow-lg);
        border-color: rgba(var(--color-accent-rgb), 0.30);
    }

    @container (max-width: 350px) {
        padding: clamp(0.75rem, 2cqi, 1.25rem);
    }
}

/* Gold top line accent */
.card::after,
.program-card::after,
.contact-card::after,
.blog-card::after {
    content: '';
    display: block;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), rgba(var(--color-accent-rgb), 0.40));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   :has() Contextual Styling
   -------------------------------------------------------------------------- */
@layer components {
@supports selector(:has(*)) {
    .card:has(img) {
        overflow: hidden;
        padding-top: 0;
    }

    .card:has(.badge) {
        border-left: 2px solid var(--color-accent);
    }

    .card:has(.stat, .metric, .number) {
        background: color-mix(in oklch, var(--color-bg-alt) 95%, var(--color-secondary));
    }

    section:has(.hero) + section {
        padding-top: clamp(2rem, 4vw, 4rem);
    }
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
@layer components {
.btn,
button,
.btn-primary, .btn-secondary, .btn-outline {
    font-family: var(--font-body);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    border: none;
    letter-spacing: 0.02em;
    padding: clamp(0.5rem, 1.5vw, 0.85rem) clamp(1rem, 3vw, 2rem);
    transition: background var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    box-shadow: 0 4px 16px rgba(var(--color-primary-rgb), 0.25);

    &:hover {
        background: color-mix(in oklch, var(--color-primary) 85%, black);
        box-shadow: 0 6px 24px rgba(var(--color-primary-rgb), 0.35);
    }
}

.btn-secondary {
    background: var(--color-secondary);
    color: #FFFFFF;
    box-shadow: 0 4px 16px rgba(var(--color-secondary-rgb), 0.20);

    &:hover {
        background: color-mix(in oklch, var(--color-secondary) 85%, black);
    }
}

/* Gold accent button */
.btn-accent,
.btn-cta {
    background: var(--color-accent);
    color: var(--color-primary);
    box-shadow: 0 4px 16px rgba(var(--color-accent-rgb), 0.25);
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */
@layer components {
  .section--alt {
    background-color: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
  }

  .cta-section.section--alt {
    background-color: var(--color-primary);
    background-image: none;
    color: var(--color-text-inverse);
  }
} /* end @layer components */

/* --------------------------------------------------------------------------
   Hero — Deep Emerald
   -------------------------------------------------------------------------- */
@layer components {
.hero,
.page-hero {
    background: linear-gradient(135deg, var(--color-bg-dark), oklch(0.42 0.10 165));
    color: var(--color-text-inverse);
    padding: clamp(2rem, 8vw, 6rem) clamp(1rem, 4vw, 3rem);
    view-transition-name: hero;

    & h1 {
        color: var(--color-text-inverse);
    }

    & p {
        color: color-mix(in oklch, var(--color-text-inverse) 85%, transparent);
    }
}

@media (prefers-color-scheme: dark) {
    .hero,
    .page-hero {
        background: linear-gradient(135deg, var(--color-bg-dark), oklch(0.22 0.06 165));
    }
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Navigation — Dark Emerald Bar
   -------------------------------------------------------------------------- */
@layer components {
nav,
.navbar,
.site-header {
    background: var(--color-bg-dark);
    color: var(--color-text-inverse);
    border-bottom: 2px solid var(--color-accent);
    view-transition-name: nav;

    & a {
        color: color-mix(in oklch, var(--color-text-inverse) 85%, transparent);
        font-weight: var(--font-weight-medium);
        transition: color var(--transition-fast);

        &:hover {
            color: var(--color-accent);
        }
    }
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Gold Line Accents (Decorative Borders)
   -------------------------------------------------------------------------- */
@layer components {
.section-title,
.heading-decorated {
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: clamp(0.5rem, 1vw, 1rem);
}
} /* end @layer components */

/* Gold thin divider lines */
@layer base {
hr {
    border: none;
    border-top: 1px solid var(--color-accent);
    opacity: 0.4;
}
} /* end @layer base */

/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */
@layer components {
input, textarea, select {
    font-family: var(--font-body);
    background: var(--color-bg-alt);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    padding: clamp(0.5rem, 1.5vw, 0.875rem) clamp(0.75rem, 2vw, 1.25rem);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);

    &:focus {
        outline: none;
        border-color: var(--color-secondary);
        box-shadow: 0 0 0 3px rgba(var(--color-secondary-rgb), 0.12);
    }
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Selection & Scrollbar
   -------------------------------------------------------------------------- */
@layer utilities {
::selection {
    background: rgba(var(--color-secondary-rgb), 0.20);
    color: var(--color-text);
}

::-webkit-scrollbar {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 6px;
}
} /* end @layer utilities */

/* --------------------------------------------------------------------------
   Alternating Sections
   -------------------------------------------------------------------------- */
@layer components {
section:nth-child(even) {
    background: var(--color-bg-alt);
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Footer — Deep Emerald
   -------------------------------------------------------------------------- */
@layer components {
footer,
.site-footer {
    background: var(--color-bg-dark);
    color: color-mix(in oklch, var(--color-text-inverse) 80%, transparent);
    border-top: 2px solid var(--color-accent);
    padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 3vw, 2rem);
    view-transition-name: footer;

    & a {
        color: var(--color-secondary);

        &:hover {
            color: var(--color-accent);
        }
    }
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Badges
   -------------------------------------------------------------------------- */
@layer components {
.badge,
.tag {
    font-family: var(--font-body);
    font-weight: var(--font-weight-semibold);
    font-size: clamp(0.68rem, 0.9vw, 0.82rem);
    border-radius: var(--radius-sm);
    background: rgba(var(--color-secondary-rgb), 0.08);
    color: var(--color-primary);
    border: 1px solid rgba(var(--color-secondary-rgb), 0.18);
    padding: clamp(0.15rem, 0.5vw, 0.3rem) clamp(0.4rem, 1.2vw, 0.8rem);
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Blockquote, Images, Tables
   -------------------------------------------------------------------------- */
@layer utilities {
blockquote {
    padding: clamp(0.75rem, 2vw, 1.25rem) clamp(1rem, 3vw, 2rem);
    border-left: 3px solid var(--color-accent);
    background: rgba(var(--color-accent-rgb), 0.04);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--color-text-light);
    font-style: italic;
}

img {
    border-radius: var(--radius-md);
}

table {
    border-collapse: separate;
    border-spacing: 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);

    & th {
        background: rgba(var(--color-primary-rgb), 0.06);
        font-family: var(--font-heading);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text);
        border-bottom: 2px solid var(--color-accent);
    }

    & td {
        border-bottom: 1px solid var(--color-border);
    }
}
} /* end @layer utilities */

/* --------------------------------------------------------------------------
   Scroll-Driven Animations — Growth / Emergence
   -------------------------------------------------------------------------- */
@layer utilities {
@supports (animation-timeline: view()) {
    .card,
    .program-card,
    .blog-card {
        animation: emeraldGrow ease both;
        animation-timeline: view();
        animation-range: entry 0% entry 35%;
    }

    @keyframes emeraldGrow {
        from {
            opacity: 0;
            transform: translateY(25px) scale(0.97);
        }
        to {
            opacity: 1;
            transform: translateY(0) scale(1);
        }
    }

    /* Gold line grows in */
    .section-title,
    .heading-decorated {
        animation: goldLineGrow ease both;
        animation-timeline: view();
        animation-range: entry 0% entry 40%;
    }

    @keyframes goldLineGrow {
        from {
            border-bottom-color: transparent;
            opacity: 0;
            transform: translateX(-20px);
        }
        to {
            border-bottom-color: var(--color-accent);
            opacity: 1;
            transform: translateX(0);
        }
    }

    .hero,
    .page-hero {
        animation: depthFade ease both;
        animation-timeline: scroll();
        animation-range: 0% 45%;
    }

    @keyframes depthFade {
        to {
            opacity: 0.85;
        }
    }
}
} /* end @layer utilities */

/* Blog expand/collapse */
.blog-expanded {
  margin-top: 1rem;
}

.blog-expanded p {
  margin-bottom: 0.75rem;
  line-height: 1.7;
}

.blog-toggle {
  margin-top: 0.75rem;
  cursor: pointer;
}