/* ==========================================================================
   STYLE 11: SOFT GRADIENT
   A dreamy, flowing gradient theme with pill shapes and backdrop blur.
   Indigo / Purple / Pink palette with animated gradient backgrounds.
   Modernized: CSS Nesting, Container Queries, @layer, oklch(), clamp(),
   :has(), scroll-driven animations, view transitions, light-dark().
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?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(0.55 0.19 264);
    --color-primary-rgb: 43, 95, 217;
    --color-secondary: oklch(0.72 0.14 292);
    --color-secondary-rgb: 167, 139, 250;
    --color-accent: oklch(0.82 0.12 350);
    --color-accent-rgb: 249, 168, 212;
    --color-text: oklch(0.25 0.03 260);
    --color-text-light: #64748B;
    --color-text-inverse: #FFFFFF;
    --color-bg: oklch(0.95 0.02 250);
    --color-bg-alt: oklch(0.96 0.03 300);
    --color-bg-dark: #3B1F7E;
    --color-border: rgba(167, 139, 250, 0.25);
    --font-heading: 'Inter', 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: 14px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-xl: 40px;
    --shadow-sm: 0 2px 12px rgba(74, 123, 247, 0.08);
    --shadow-md: 0 6px 24px rgba(74, 123, 247, 0.10);
    --shadow-lg: 0 12px 40px rgba(167, 139, 250, 0.14);
    --shadow-xl: 0 20px 60px rgba(167, 139, 250, 0.18);
    --hero-overlay: linear-gradient(135deg, rgba(74, 123, 247, 0.65), rgba(167, 139, 250, 0.55), rgba(249, 168, 212, 0.45));
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   Dark Mode
   -------------------------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
    :root {
        --color-primary: oklch(0.70 0.18 264);
        --color-secondary: oklch(0.78 0.14 292);
        --color-accent: oklch(0.85 0.10 350);
        --color-text: oklch(0.92 0.01 260);
        --color-text-light: #94A3B8;
        --color-text-inverse: #0F172A;
        --color-bg: oklch(0.18 0.04 270);
        --color-bg-alt: oklch(0.22 0.05 285);
        --color-bg-dark: #1E0F47;
        --color-border: rgba(167, 139, 250, 0.20);
        --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.20);
        --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.28);
        --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.35);
        --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.42);
    }
}
} /* end @layer base */

/* --------------------------------------------------------------------------
   Animated Gradient Background
   -------------------------------------------------------------------------- */
@keyframes gradientFlow {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@layer base {
body {
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 35%, oklch(0.97 0.01 20) 65%, var(--color-bg) 100%);
    background-size: 400% 400%;
    animation: gradientFlow 20s ease infinite;
    color: var(--color-text);
    font-family: var(--font-body);
    view-transition-name: body;
}

@media (prefers-color-scheme: dark) {
    body {
        background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 35%, oklch(0.20 0.03 300) 65%, var(--color-bg) 100%);
        background-size: 400% 400%;
    }
}
} /* end @layer base */

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
@layer base {
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-text);
    letter-spacing: -0.02em;
    font-size: clamp(1rem, 2vw + 0.5rem, 3.5rem);
}

h1 { font-weight: var(--font-weight-bold); }
h2 { font-weight: var(--font-weight-semibold); }
h3, h4, h5, h6 { font-weight: var(--font-weight-medium); }

p, li, span {
    font-family: var(--font-body);
    color: var(--color-text);
    line-height: 1.7;
}

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

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

/* --------------------------------------------------------------------------
   Glassmorphism Cards — 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 55%, transparent);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid color-mix(in oklch, white 60%, transparent);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: box-shadow var(--transition-base), transform var(--transition-base);
    view-transition-name: card;
    padding: clamp(1rem, 3cqi, 2.5rem);

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

    @container (max-width: 400px) {
        padding: clamp(0.75rem, 2cqi, 1.5rem);
    }
}

@media (prefers-color-scheme: dark) {
    .card,
    .program-card,
    .contact-card,
    .blog-card,
    .nav-card,
    .sidebar-widget {
        background: color-mix(in oklch, oklch(0.25 0.04 270) 70%, transparent);
        border-color: color-mix(in oklch, var(--color-secondary) 15%, transparent);
    }
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   :has() contextual styling — cards with images get extra padding
   -------------------------------------------------------------------------- */
@layer components {
@supports selector(:has(*)) {
    .card:has(img) {
        overflow: hidden;
        padding-top: 0;
    }

    .card:has(.badge) {
        padding-top: clamp(1.5rem, 3cqi, 2.5rem);
    }

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

/* --------------------------------------------------------------------------
   Pill Buttons
   -------------------------------------------------------------------------- */
@layer components {
.btn,
button,
.btn-primary, .btn-secondary, .btn-outline {
    font-family: var(--font-body);
    font-weight: var(--font-weight-semibold);
    border-radius: 28px;
    border: none;
    letter-spacing: 0.01em;
    padding: clamp(0.5rem, 1.5vw, 0.85rem) clamp(1rem, 3vw, 2rem);
    box-shadow: 0 4px 18px rgba(74, 123, 247, 0.18);
    transition: box-shadow var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-text-inverse);

    &:hover {
        box-shadow: 0 8px 30px rgba(74, 123, 247, 0.30);
        filter: brightness(1.06);
    }
}

.btn-secondary {
    background: color-mix(in oklch, white 60%, transparent);
    backdrop-filter: blur(8px);
    color: var(--color-primary);
    border: 1.5px solid rgba(74, 123, 247, 0.25);

    &:hover {
        background: color-mix(in oklch, white 85%, transparent);
        border-color: var(--color-primary);
    }
}
} /* 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 Section
   -------------------------------------------------------------------------- */
@layer components {
.hero,
.page-hero {
    background: linear-gradient(135deg, rgba(74, 123, 247, 0.12), rgba(var(--color-secondary-rgb), 0.10), rgba(var(--color-accent-rgb), 0.08));
    backdrop-filter: blur(6px);
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    padding: clamp(2rem, 8vw, 6rem) clamp(1rem, 4vw, 3rem);
    view-transition-name: hero;
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
@layer components {
nav,
.navbar,
.site-header,
.story-header {
    background: var(--color-bg, #fff);
    border-bottom: 1px solid var(--color-border, #e0e0e0);
    box-shadow: 0 2px 20px rgba(74, 123, 247, 0.06);
    view-transition-name: nav;

    & a {
        font-weight: var(--font-weight-medium);
        color: var(--color-text);
        transition: color var(--transition-fast);

        &:hover {
            color: var(--color-primary);
        }
    }
}

@media (prefers-color-scheme: dark) {
    nav,
    .navbar,
    .site-header {
        background: color-mix(in oklch, oklch(0.18 0.04 270) 80%, transparent);
        border-bottom-color: color-mix(in oklch, var(--color-secondary) 10%, transparent);
    }
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Form Elements
   -------------------------------------------------------------------------- */
@layer components {
input, textarea, select {
    font-family: var(--font-body);
    background: color-mix(in oklch, white 60%, transparent);
    backdrop-filter: blur(8px);
    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 4px rgba(74, 123, 247, 0.12);
    }
}

@media (prefers-color-scheme: dark) {
    input, textarea, select {
        background: color-mix(in oklch, oklch(0.22 0.04 270) 70%, transparent);
    }
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Section Dividers & Decorative Elements
   -------------------------------------------------------------------------- */
@layer base {
hr {
    border: none;
    border-top: 2px solid;
    border-image: linear-gradient(90deg, transparent, var(--color-secondary), var(--color-accent), transparent) 1;
    opacity: 0.5;
}

::selection {
    background: rgba(var(--color-secondary-rgb), 0.25);
    color: var(--color-text);
}
} /* end @layer base */

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
@layer components {
footer,
.site-footer {
    background: linear-gradient(135deg, rgba(59, 31, 126, 0.95), rgba(74, 123, 247, 0.92));
    color: #fff;

    & p, & address, & address p, & li, & span { color: rgba(255,255,255,0.92); }
    & address { font-style: normal; }
    & h2, & h3, & h4, & h5 { color: #fff; }
    & .footer-brand > p { font-size: 0.85rem; }
    & .footer-bottom { border-top: 1px solid rgba(255,255,255,0.15); }
    & .footer-bottom p { font-size: 0.8rem; color: rgba(255,255,255,0.7); }
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 3vw, 2rem);
    view-transition-name: footer;

    & a {
        color: #ffffff;
        text-decoration: none;

        &:hover {
            color: var(--color-accent);
        }
    }
}

@media (prefers-color-scheme: dark) {
    footer,
    .site-footer {
        background: linear-gradient(135deg, oklch(0.15 0.06 290), oklch(0.20 0.08 264));
    }
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Badges & Tags
   -------------------------------------------------------------------------- */
@layer components {
.badge,
.tag {
    font-family: var(--font-body);
    font-weight: var(--font-weight-medium);
    font-size: clamp(0.7rem, 1vw, 0.85rem);
    border-radius: 28px;
    background: linear-gradient(135deg, rgba(74, 123, 247, 0.12), rgba(var(--color-secondary-rgb), 0.12));
    color: var(--color-primary);
    border: 1px solid rgba(74, 123, 247, 0.15);
    padding: clamp(0.2rem, 0.5vw, 0.35rem) clamp(0.5rem, 1.5vw, 1rem);
}
} /* end @layer components */

/* --------------------------------------------------------------------------
   Scroll & Accents
   -------------------------------------------------------------------------- */
@layer utilities {
::-webkit-scrollbar {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
    border-radius: 20px;
}

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

blockquote {
    padding: clamp(0.75rem, 2vw, 1.25rem) clamp(1rem, 3vw, 2rem);
    border-left: 4px solid var(--color-secondary);
    background: rgba(var(--color-secondary-rgb), 0.06);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--color-text-light);
}

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

th {
    background: linear-gradient(135deg, rgba(74, 123, 247, 0.08), rgba(var(--color-secondary-rgb), 0.08));
    font-weight: var(--font-weight-semibold);
}

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

/* --------------------------------------------------------------------------
   Scroll-Driven Animations
   -------------------------------------------------------------------------- */
@layer utilities {
@supports (animation-timeline: view()) {
    .card,
    .program-card,
    .blog-card {
        animation: fadeSlideIn ease both;
        animation-timeline: view();
        animation-range: entry 0% entry 40%;
    }

    @keyframes fadeSlideIn {
        from {
            opacity: 0;
            transform: translateY(30px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .hero,
    .page-hero {
        animation: heroParallax ease both;
        animation-timeline: scroll();
        animation-range: 0% 50%;
    }

    @keyframes heroParallax {
        to {
            background-position: center 30%;
            opacity: 0.85;
        }
    }
}
} /* end @layer utilities */