/* ==========================================================================
   STYLE 13: WARM LINEN
   A cozy, tactile theme with linen-textured backgrounds and warm tones.
   Paper-like feel with handwritten accents and natural soft shadows.
   Modernized: CSS Nesting, Container Queries, @layer, oklch(), clamp(),
   :has(), scroll-driven animations, view transitions, light-dark().
   ========================================================================== */

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

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

/* --------------------------------------------------------------------------
   Custom Property Overrides
   -------------------------------------------------------------------------- */
@layer base {
:root {
    --color-primary: oklch(0.55 0.06 60);
    --color-primary-rgb: 139, 115, 85;
    --color-secondary: oklch(0.75 0.06 70);
    --color-secondary-rgb: 196, 167, 125;
    --color-accent: oklch(0.65 0.14 80);
    --color-accent-rgb: 184, 134, 11;
    --color-text: oklch(0.26 0.03 55);
    --color-text-light: #6A5B4D;
    --color-text-inverse: #FAF6F1;
    --color-bg: oklch(0.97 0.01 70);
    --color-bg-alt: oklch(0.91 0.02 65);
    --color-bg-dark: #3D3225;
    --color-border: rgba(139, 115, 85, 0.20);
    --font-heading: 'Fraunces', serif;
    --font-body: 'Outfit', sans-serif;
    --font-weight-light: 400;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 600;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 10px;
    --radius-xl: 14px;
    --shadow-sm: 0 1px 4px rgba(61, 50, 37, 0.06), 0 1px 2px rgba(61, 50, 37, 0.04);
    --shadow-md: 0 4px 16px rgba(61, 50, 37, 0.08), 0 2px 6px rgba(61, 50, 37, 0.05);
    --shadow-lg: 0 8px 30px rgba(61, 50, 37, 0.10), 0 4px 10px rgba(61, 50, 37, 0.06);
    --shadow-xl: 0 16px 50px rgba(61, 50, 37, 0.12);
    --hero-overlay: linear-gradient(180deg, rgba(61, 50, 37, 0.50), rgba(139, 115, 85, 0.40));
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* --------------------------------------------------------------------------
   Dark Mode
   -------------------------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
    :root {
        --color-primary: oklch(0.72 0.06 60);
        --color-secondary: oklch(0.65 0.06 70);
        --color-accent: oklch(0.75 0.12 80);
        --color-text: oklch(0.90 0.01 60);
        --color-text-light: #A89C8E;
        --color-text-inverse: #1A1510;
        --color-bg: oklch(0.18 0.02 55);
        --color-bg-alt: oklch(0.22 0.02 55);
        --color-bg-dark: oklch(0.12 0.02 55);
        --color-border: rgba(196, 167, 125, 0.18);
        --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.20);
        --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.28);
        --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.35);
        --shadow-xl: 0 16px 50px rgba(0, 0, 0, 0.42);
    }
}
} /* end @layer base */

/* --------------------------------------------------------------------------
   Base — Linen Textured Background
   -------------------------------------------------------------------------- */
@layer base {
body {
    background-color: var(--color-bg);
    background-image:
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 24px,
            rgba(var(--color-primary-rgb), 0.018) 24px,
            rgba(var(--color-primary-rgb), 0.018) 25px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 24px,
            rgba(var(--color-primary-rgb), 0.018) 24px,
            rgba(var(--color-primary-rgb), 0.018) 25px
        );
    color: var(--color-text);
    font-family: var(--font-body);
    view-transition-name: body;
}
} /* end @layer base */

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
@layer base {
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-text);
    font-size: clamp(1rem, 2vw + 0.5rem, 3rem);
}

h1 {
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.02em;
}

h2 {
    font-weight: var(--font-weight-medium);
    letter-spacing: -0.01em;
}

h3, h4, h5, h6 {
    font-weight: var(--font-weight-medium);
}

p, li {
    color: var(--color-text);
    line-height: 1.8;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    border-bottom: 1px solid rgba(var(--color-primary-rgb), 0.25);
    transition: color var(--transition-fast), border-color var(--transition-fast);

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

/* --------------------------------------------------------------------------
   Cards — Paper Texture (Container Query enabled)
   -------------------------------------------------------------------------- */
@layer components {
.card,
.program-card,
.contact-card,
.blog-card,
.nav-card,
.sidebar-widget {
    container-type: inline-size;
    background: color-mix(in oklch, white 100%, transparent);
    background-image:
        radial-gradient(ellipse at 20% 50%, rgba(var(--color-secondary-rgb), 0.04) 0%, transparent 70%);
    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);
    view-transition-name: card;

    &:hover {
        box-shadow: var(--shadow-lg);
    }

    @container (max-width: 380px) {
        padding: clamp(0.75rem, 2cqi, 1.25rem);
    }
}

@media (prefers-color-scheme: dark) {
    .card,
    .program-card,
    .contact-card,
    .blog-card,
    .nav-card,
    .sidebar-widget {
        background: var(--color-bg-alt);
        background-image:
            radial-gradient(ellipse at 20% 50%, rgba(var(--color-secondary-rgb), 0.06) 0%, transparent 70%);
    }
}
} /* end @layer components */

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

    .card:has(blockquote) {
        border-left: 3px solid var(--color-secondary);
    }

    section:has(.hero) + section {
        padding-top: clamp(2rem, 5vw, 4rem);
    }
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Buttons — Natural Warmth
   -------------------------------------------------------------------------- */
@layer components {
.btn,
button,
.btn-primary, .btn-secondary, .btn-outline {
    font-family: var(--font-body);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    border: none;
    letter-spacing: 0.02em;
    padding: clamp(0.5rem, 1.5vw, 0.85rem) clamp(1rem, 3vw, 1.75rem);
    transition: background var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.20);

    &:hover {
        background: color-mix(in oklch, var(--color-primary) 85%, black);
        box-shadow: 0 4px 16px rgba(var(--color-primary-rgb), 0.30);
    }
}

.btn-secondary {
    background: var(--color-bg-alt);
    color: var(--color-text);
    border: 1.5px solid var(--color-border);

    &:hover {
        background: color-mix(in oklch, var(--color-bg-alt) 85%, var(--color-primary));
        border-color: var(--color-secondary);
    }
}
} /* 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
   -------------------------------------------------------------------------- */
@layer components {
.hero,
.page-hero {
    background-color: var(--color-bg-alt);
    background-image:
        radial-gradient(circle at 30% 70%, rgba(var(--color-secondary-rgb), 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(var(--color-accent-rgb), 0.08) 0%, transparent 50%);
    padding: clamp(2rem, 8vw, 6rem) clamp(1rem, 4vw, 3rem);
    view-transition-name: hero;
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
@layer components {
nav,
.navbar,
.site-header,
.hscroll-header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    view-transition-name: nav;

    & a {
        color: var(--color-text);
        font-weight: var(--font-weight-medium);
        border-bottom: none;

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

/* --------------------------------------------------------------------------
   Form Elements
   -------------------------------------------------------------------------- */
@layer components {
input, textarea, select {
    font-family: var(--font-body);
    background: color-mix(in oklch, white 100%, transparent);
    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-primary);
        box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.10);
    }
}

@media (prefers-color-scheme: dark) {
    input, textarea, select {
        background: var(--color-bg-alt);
    }
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Decorative Dividers
   -------------------------------------------------------------------------- */
@layer base {
hr {
    border: none;
    border-top: 1px dashed var(--color-secondary);
    opacity: 0.5;
}

::selection {
    background: rgba(var(--color-secondary-rgb), 0.30);
    color: var(--color-text);
}
} /* end @layer base */

/* --------------------------------------------------------------------------
   Sections — Alternating Linen
   -------------------------------------------------------------------------- */
@layer components {
section:nth-child(even) {
    background: var(--color-bg-alt);
    background-image:
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 40px,
            rgba(var(--color-primary-rgb), 0.015) 40px,
            rgba(var(--color-primary-rgb), 0.015) 41px
        );
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
@layer components {
footer,
.site-footer {
    background: var(--color-bg-dark);
    color: var(--color-text-inverse);
    padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 3vw, 2rem);
    view-transition-name: footer;

    & a {
        color: rgba(255,255,255,0.65);
        text-decoration: none;
        border-bottom: none;

        &:hover {
            color: #FFFFFF;
        }
    }

    & h3 {
        font-size: 0.9rem;
        font-family: var(--font-body, sans-serif);
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.06em;
        color: rgba(255,255,255,0.9);
        margin-bottom: 1rem;
    }

    & p, & address {
        color: rgba(255,255,255,0.55);
        font-size: 0.9rem;
    }

    & ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    & ul li {
        padding: 0.3rem 0;
    }

    & .footer-brand {
        font-size: 0.9rem;
        color: rgba(255,255,255,0.55);
    }

    & .footer-brand img {
        max-width: 100px;
        border-radius: 8px;
        margin-bottom: 0.75rem;
    }

    & .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.1);
        font-size: 0.8rem;
        color: rgba(255,255,255,0.35);
    }

    & .footer-bottom a {
        color: rgba(255,255,255,0.35);
    }
}

@media (prefers-color-scheme: dark) {
    footer,
    .site-footer {
        background: var(--color-bg-dark);
        color: var(--color-text);
    }
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Blockquotes & Misc
   -------------------------------------------------------------------------- */
@layer utilities {
blockquote {
    padding: clamp(0.75rem, 2vw, 1.25rem) clamp(1rem, 3vw, 2rem);
    border-left: 3px solid var(--color-secondary);
    background: rgba(var(--color-secondary-rgb), 0.06);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--color-text-light);
    font-family: var(--font-heading);
    font-style: italic;
}

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

.badge,
.tag {
    font-family: var(--font-body);
    font-weight: var(--font-weight-medium);
    font-size: clamp(0.7rem, 1vw, 0.85rem);
    border-radius: var(--radius-sm);
    background: var(--color-bg-alt);
    color: var(--color-primary);
    border: 1px solid var(--color-border);
    padding: clamp(0.15rem, 0.5vw, 0.3rem) clamp(0.4rem, 1.2vw, 0.8rem);
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-secondary);
    border-radius: 10px;
}

table {
    border-collapse: separate;
    border-spacing: 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);

    & th {
        background: var(--color-bg-alt);
        font-family: var(--font-heading);
        font-weight: var(--font-weight-medium);
        color: var(--color-text);
    }

    & td {
        border-bottom: 1px solid var(--color-border);
        background: color-mix(in oklch, white 100%, transparent);
    }
}

@media (prefers-color-scheme: dark) {
    table td {
        background: var(--color-bg-alt);
    }
}
} /* end @layer utilities */

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

    @keyframes paperLift {
        from {
            opacity: 0;
            transform: translateY(20px) rotate(-0.5deg);
        }
        to {
            opacity: 1;
            transform: translateY(0) rotate(0deg);
        }
    }

    blockquote {
        animation: quoteSlide ease both;
        animation-timeline: view();
        animation-range: entry 0% entry 30%;
    }

    @keyframes quoteSlide {
        from {
            opacity: 0;
            transform: translateX(-15px);
        }
        to {
            opacity: 1;
            transform: translateX(0);
        }
    }
}
} /* end @layer utilities */