/* style.css */

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

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

body {
    font-family: var(--font-body);
    color: var(--color-text-primary);
    background-color: var(--color-background);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden; /* Prevent horizontal scroll */
}

/* -------------------------------------------------------------------
   2. CSS Variables
------------------------------------------------------------------- */
:root {
    /* Fonts */
    --font-heading: 'Raleway', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    /* Colors - Split-Complementary Neumorphic Palette */
    --color-background: #e0e5ec; /* Light grey-blue, main surface */
    --color-background-alt: #f0f3f6; /* Slightly lighter, for contrasting sections or raised elements */
    --color-text-primary: #333740; /* Dark grey-blue, main text */
    --color-text-secondary: #5a6472; /* Medium grey-blue, secondary text */
    --color-text-light: #FFFFFF;    /* White text, for dark backgrounds */

    --color-primary: #639FAB; /* Muted Teal - Main interactive color */
    --color-primary-dark: #4F7F8C; /* Darker Teal - for hover/active */
    --color-secondary-accent: #D98B68; /* Muted Orange - Split complementary accent 1 */
    --color-tertiary-accent: #A890C2; /* Muted Lavender - Split complementary accent 2 */

    /* Neumorphic Shadows */
    --shadow-offset: 6px;
    --shadow-blur: 12px;
    --shadow-spread: 0px; /* Neumorphism usually has 0 spread */
    --shadow-color-light: rgba(255, 255, 255, 0.75);
    --shadow-color-dark: rgba(160, 174, 192, 0.55);

    --neumorphic-shadow-convex:
        var(--shadow-offset) var(--shadow-offset) var(--shadow-blur) var(--shadow-spread) var(--shadow-color-dark),
        calc(-1 * var(--shadow-offset)) calc(-1 * var(--shadow-offset)) var(--shadow-blur) var(--shadow-spread) var(--shadow-color-light);
    --neumorphic-shadow-concave:
        inset var(--shadow-offset) var(--shadow-offset) var(--shadow-blur) var(--shadow-spread) var(--shadow-color-dark),
        inset calc(-1 * var(--shadow-offset)) calc(-1 * var(--shadow-offset)) var(--shadow-blur) var(--shadow-spread) var(--shadow-color-light);
    --neumorphic-shadow-convex-soft:
        3px 3px 6px var(--shadow-color-dark),
        -3px -3px 6px var(--shadow-color-light);
    --neumorphic-shadow-concave-soft:
        inset 3px 3px 6px var(--shadow-color-dark),
        inset -3px -3px 6px var(--shadow-color-light);

    /* Spacing */
    --spacing-xxsmall: 0.25rem; /* 4px */
    --spacing-xsmall: 0.5rem;  /* 8px */
    --spacing-small: 1rem;    /* 16px */
    --spacing-medium: 1.5rem; /* 24px */
    --spacing-large: 2rem;    /* 32px */
    --spacing-xlarge: 3rem;   /* 48px */
    --spacing-xxlarge: 4rem;  /* 64px */

    /* Transitions */
    --transition-fast: 0.2s ease-in-out;
    --transition-normal: 0.3s ease-in-out;

    /* Header Height */
    --header-height: 80px;
    --header-height-mobile: 60px;
}

/* -------------------------------------------------------------------
   3. Typography
------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-text-primary);
    font-weight: 700;
    margin-bottom: var(--spacing-medium);
    line-height: 1.3;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1); /* Subtle shadow for better definition */
}

h1 { font-size: 2.8rem; font-weight: 900; } /* ~44.8px */
h2 { font-size: 2.2rem; } /* ~35.2px */
h3 { font-size: 1.6rem; } /* ~25.6px */
h4 { font-size: 1.25rem; } /* ~20px */

p {
    margin-bottom: var(--spacing-small);
    font-size: 1rem; /* 16px */
    color: var(--color-text-secondary);
}

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

a:hover, a:focus {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

strong { font-weight: 600; color: var(--color-text-primary); }
em { font-style: italic; }

ul, ol {
    margin-bottom: var(--spacing-small);
    padding-left: var(--spacing-medium);
}
li { margin-bottom: var(--spacing-xsmall); }

/* Section Titles & Intros */
.section-title {
    text-align: center;
    margin-bottom: var(--spacing-small);
    color: #222222; /* Darker for contrast as per prompt */
}
.section-intro {
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--spacing-large);
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

.text-light { color: var(--color-text-light) !important; }
.text-light h1, .text-light h2, .text-light h3, .text-light h4, .text-light p {
    color: var(--color-text-light) !important;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5); /* For light text on potentially complex backgrounds */
}


/* -------------------------------------------------------------------
   4. Layout (Container, Grids)
------------------------------------------------------------------- */
.container {
    width: 90%;
    max-width: 1140px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-small);
    padding-right: var(--spacing-small);
}

.main-container { /* For Barba.js */
    width: 100%;
}

.section-padding {
    padding-top: var(--spacing-xxlarge);
    padding-bottom: var(--spacing-xxlarge);
}
.section-padding-alt {
    padding-top: var(--spacing-xxlarge);
    padding-bottom: var(--spacing-xxlarge);
    background-color: var(--color-background-alt);
}

/* For sections with background images that need parallax or overlays */
.section-bg-image {
    position: relative;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
}
.section-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); /* Default dark overlay */
    z-index: 1;
}
.section-bg-image > .container { /* Ensure content is above overlay */
    position: relative;
    z-index: 2;
}


/* -------------------------------------------------------------------
   5. Utility Classes (Animations, Spacing)
------------------------------------------------------------------- */
.animate-on-scroll {
    opacity: 0;
    transition: opacity 0.6s var(--transition-normal), transform 0.6s var(--transition-normal);
}
.animate-on-scroll.is-visible {
    opacity: 1;
    transform: none !important; /* Override specific transforms */
}

.fade-in { transform: translateY(10px); }
.fade-in-up { transform: translateY(30px); }
.slide-in-left { transform: translateX(-50px); }
.slide-in-right { transform: translateX(50px); }

.delay-1 { transition-delay: 0.2s !important; }
.delay-2 { transition-delay: 0.4s !important; }
.delay-3 { transition-delay: 0.6s !important; }

.text-center { text-align: center; }
.margin-bottom-small { margin-bottom: var(--spacing-small); }
.margin-bottom-medium { margin-bottom: var(--spacing-medium); }
.margin-bottom-large { margin-bottom: var(--spacing-large); }

.parallax-bg {
    background-attachment: fixed; /* Simple parallax */
}

/* -------------------------------------------------------------------
   6. Header & Navigation
------------------------------------------------------------------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: var(--color-background);
    box-shadow: var(--neumorphic-shadow-convex);
    z-index: 1000;
    transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}
body { /* Add padding to body to prevent content from being hidden by fixed header */
    padding-top: var(--header-height);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--color-primary);
    text-decoration: none;
}
.logo:hover {
    color: var(--color-primary-dark);
}

.main-nav ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0;
    display: flex;
}
.main-nav li {
    margin-left: var(--spacing-medium);
}
.main-nav a {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    padding: var(--spacing-xsmall) var(--spacing-small);
    border-radius: 8px;
    transition: color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}
.main-nav a:hover,
.main-nav a:focus,
.main-nav .active a { /* Assuming an active class will be added via JS */
    color: var(--color-primary);
    background-color: var(--color-background);
    box-shadow: var(--neumorphic-shadow-concave-soft);
}

.nav-toggle {
    display: none; /* Hidden on desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xsmall);
    z-index: 1001; /* Above mobile menu overlay */
}
.hamburger {
    display: block;
    position: relative;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--transition-fast);
}
.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: all var(--transition-fast);
}
.hamburger::before { top: -7px; }
.hamburger::after { bottom: -7px; }

/* Hamburger animation for open state */
.nav-open .hamburger { background-color: transparent; }
.nav-open .hamburger::before { transform: translateY(7px) rotate(45deg); }
.nav-open .hamburger::after { transform: translateY(-7px) rotate(-45deg); }


/* -------------------------------------------------------------------
   7. Hero Section
------------------------------------------------------------------- */
.hero-section {
    position: relative; /* For overlay */
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: calc(100vh - var(--header-height)); /* Full viewport height minus header */
    padding: var(--spacing-xlarge) 0;
}
.hero-overlay { /* Placed in HTML */
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.7));
    z-index: 1;
}
.hero-content {
    position: relative; /* Above overlay */
    z-index: 2;
    max-width: 800px;
}
.hero-title {
    font-size: 3.2rem; /* Larger for hero */
    font-weight: 900;
    color: var(--color-text-light); /* Explicitly white */
    margin-bottom: var(--spacing-medium);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5); /* Ensure readability */
}
.hero-subtitle {
    font-size: 1.3rem;
    color: var(--color-text-light); /* Explicitly white */
    margin-bottom: var(--spacing-large);
    line-height: 1.8;
    opacity: 0.9;
}


/* -------------------------------------------------------------------
   8. Buttons & Forms (Global)
------------------------------------------------------------------- */
.btn, button, input[type="submit"], input[type="button"] {
    display: inline-block;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    border: none;
    padding: var(--spacing-small) var(--spacing-large);
    border-radius: 12px;
    transition: all var(--transition-fast);
    background-color: var(--color-background); /* Base for neumorphic effect */
    color: var(--color-primary);
    box-shadow: var(--neumorphic-shadow-convex);
    letter-spacing: 0.5px;
}
.btn:hover, button:hover, input[type="submit"]:hover, input[type="button"]:hover,
.btn:focus, button:focus, input[type="submit"]:focus, input[type="button"]:focus {
    color: var(--color-primary-dark);
    box-shadow: var(--neumorphic-shadow-convex-soft); /* Softer hover */
    outline: none;
}
.btn:active, button:active, input[type="submit"]:active, input[type="button"]:active {
    box-shadow: var(--neumorphic-shadow-concave);
    transform: translateY(1px); /* Slight press effect */
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    box-shadow: var(--neumorphic-shadow-convex-soft); /* Primary buttons might have softer default shadow */
}
.btn-primary:hover, .btn-primary:focus {
    background-color: var(--color-primary-dark);
    color: var(--color-text-light);
    box-shadow: 2px 2px 5px var(--shadow-color-dark), -2px -2px 5px var(--shadow-color-light); /* Subtle volumetric lift */
}
.btn-primary:active {
    background-color: var(--color-primary-dark);
    box-shadow: inset 2px 2px 5px var(--shadow-color-dark), inset -2px -2px 5px var(--shadow-color-light);
}

.btn-secondary {
    background-color: var(--color-background-alt);
    color: var(--color-secondary-accent);
}
.btn-secondary:hover, .btn-secondary:focus {
    color: var(--color-secondary-accent); /* Keep color, change shadow */
    box-shadow: var(--neumorphic-shadow-convex-soft);
}
.btn-secondary:active {
    box-shadow: var(--neumorphic-shadow-concave);
}

.btn-primary-outline { /* For use on dark backgrounds if hero button variant */
    background-color: transparent;
    color: var(--color-text-light);
    border: 2px solid var(--color-text-light);
    box-shadow: none;
}
.btn-primary-outline:hover, .btn-primary-outline:focus {
    background-color: var(--color-text-light);
    color: var(--color-primary);
    box-shadow: none;
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-medium);
}
.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xsmall);
    color: var(--color-text-secondary);
}
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="number"],
textarea {
    width: 100%;
    padding: var(--spacing-small);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text-primary);
    background-color: var(--color-background);
    border: none; /* Remove default border */
    border-radius: 8px;
    box-shadow: var(--neumorphic-shadow-concave);
    transition: box-shadow var(--transition-fast);
}
input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
textarea:focus {
    outline: none;
    box-shadow: var(--neumorphic-shadow-concave-soft), 0 0 0 2px var(--color-primary-dark); /* Highlight focus */
}
textarea {
    min-height: 120px;
    resize: vertical;
}
::placeholder {
    color: var(--color-text-secondary);
    opacity: 0.7;
}

/* -------------------------------------------------------------------
   9. Card Styles
------------------------------------------------------------------- */
.card {
    background-color: var(--color-background);
    border-radius: 15px;
    box-shadow: var(--neumorphic-shadow-convex);
    padding: var(--spacing-medium);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
    overflow: hidden; /* Ensure content stays within rounded corners */
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 8px 8px 16px var(--shadow-color-dark), -8px -8px 16px var(--shadow-color-light); /* More pronounced shadow */
}
.card-image { /* Wrapper for the image */
    width: 100%;
    height: 200px; /* Default fixed height, can be overridden */
    overflow: hidden;
    margin-bottom: var(--spacing-medium);
    border-radius: 10px; /* Optional: round corners of image container */
    display: flex;
    justify-content: center;
    align-items: center;
}
.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-normal);
}
.card:hover .card-image img {
    transform: scale(1.05); /* Slight zoom on hover */
}
.card-content {
    flex-grow: 1; /* Allows content to fill space if card heights are equalized by grid/flex */
    text-align: center; /* Center content within the card */
}
.card-content h3 {
    margin-top: 0;
    color: var(--color-text-primary);
    font-size: 1.4rem;
}
.card-content p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}
.card .btn {
    margin-top: auto; /* Push button to bottom if card content varies */
}

/* -------------------------------------------------------------------
   10. Specific Section Styling
------------------------------------------------------------------- */

/* Process Section */
.process-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}
.process-timeline::after { /* The timeline vertical line */
    content: '';
    position: absolute;
    width: 4px;
    background-color: var(--color-primary-dark);
    opacity: 0.3;
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
    border-radius: 2px;
}
.process-step {
    padding: var(--spacing-small) var(--spacing-large);
    position: relative;
    background-color: var(--color-background); /* Match body to blend with neumorphic elements */
    width: 50%;
    margin-bottom: var(--spacing-large);
    border-radius: 10px; /* To apply shadow correctly */
}
.process-step:nth-child(odd) {
    left: 0;
    padding-right: calc(var(--spacing-large) + 30px); /* Space for the number circle */
    text-align: right;
}
.process-step:nth-child(even) {
    left: 50%;
    padding-left: calc(var(--spacing-large) + 30px); /* Space for the number circle */
}
/* Number circle */
.process-step .step-number {
    content: '';
    position: absolute;
    width: 50px;
    height: 50px;
    line-height: 50px;
    right: -25px; /* Half of width to center on timeline */
    background-color: var(--color-primary);
    color: var(--color-text-light);
    top: 50%;
    transform: translateY(-50%);
    border-radius: 50%;
    z-index: 1;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--neumorphic-shadow-convex-soft);
}
.process-step:nth-child(even) .step-number {
    left: -25px;
}
.process-step .step-content {
    padding: var(--spacing-medium);
    background: var(--color-background-alt);
    position: relative;
    border-radius: 10px;
    box-shadow: var(--neumorphic-shadow-convex);
}
.process-step .step-content h3 { font-size: 1.3rem; margin-bottom: var(--spacing-xsmall); }

/* Progress Indicator */
.progress-indicator-container {
    width: 100%;
    height: 20px;
    background-color: var(--color-background);
    border-radius: 10px;
    box-shadow: var(--neumorphic-shadow-concave-soft);
    margin-top: var(--spacing-small);
    overflow: hidden;
}
.progress-bar {
    height: 100%;
    background-color: var(--color-primary);
    color: var(--color-text-light);
    font-size: 0.8rem;
    line-height: 20px;
    text-align: center;
    border-radius: 10px 0 0 10px; /* Smooth edge */
    transition: width 0.5s ease-in-out;
    white-space: nowrap;
    padding: 0 5px;
}
.process-step:nth-child(even) .progress-bar {
    border-radius: 0 10px 10px 0;
}


/* Instructors Section */
.instructors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-large);
}
.instructor-card .card-image {
    width: 150px; /* Smaller, circular images for profiles */
    height: 150px;
    border-radius: 50%;
    margin-left: auto;
    margin-right: auto;
    box-shadow: var(--neumorphic-shadow-convex-soft);
}
.instructor-card .instructor-title {
    font-size: 0.9rem;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-small);
}


/* Case Studies Section */
.case-studies-section { /* Has background image and overlay */
    position: relative;
}
.slider-container {
    position: relative; /* For positioning controls */
}
.case-study-slide {
    display: none; /* JS will handle active state */
}
.case-study-slide.active {
    display: block;
    animation: fadeInSlide 0.5s ease-in-out;
}
@keyframes fadeInSlide {
    from { opacity: 0.7; transform: scale(0.98); }
    to { opacity: 1; transform: scale(1); }
}
.case-study-card .card-image { height: 250px; }
.slider-controls {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-medium);
}
.slider-controls button {
    background-color: var(--color-background-alt); /* Light background for controls on dark section */
    color: var(--color-primary);
    margin: 0 var(--spacing-xsmall);
    padding: var(--spacing-xsmall) var(--spacing-small);
    font-size: 1.5rem;
    border-radius: 50%; /* Circular buttons */
    width: 50px;
    height: 50px;
    line-height: 1; /* Align text vertically */
}
.slider-controls button:hover {
    color: var(--color-primary-dark);
}


/* Research Section */
.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-large);
    align-items: stretch; /* Make items of same height if in same row */
}
.research-item, .stat-widget {
    background-color: var(--color-background-alt);
    padding: var(--spacing-large);
    border-radius: 12px;
    box-shadow: var(--neumorphic-shadow-convex);
    text-align: center;
}
.research-icon {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-medium);
    /* Basic styling for img as icon. Can be SVG or img */
    padding: var(--spacing-small);
    background-color: var(--color-background);
    border-radius: 50%;
    box-shadow: var(--neumorphic-shadow-concave-soft);
    display: block;
    margin-left: auto;
    margin-right: auto;
}
.research-item h3 { font-size: 1.3rem; color: var(--color-primary); }

.stat-widget {
    background-color: var(--color-primary); /* Use accent for stats */
    color: var(--color-text-light);
}
.stat-widget .stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 900;
    line-height: 1;
    margin-bottom: var(--spacing-xsmall);
    color: var(--color-text-light);
}
.stat-widget .stat-label {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-small);
    color: var(--color-text-light);
    opacity: 0.9;
}
.stat-widget p { color: var(--color-text-light); opacity: 0.85; }


/* Events Section */
.events-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-large);
}
.event-card .card-image { height: 200px; }
.event-card .event-date {
    font-size: 0.9rem;
    color: var(--color-secondary-accent);
    font-weight: 600;
    margin-bottom: var(--spacing-xsmall);
}
.event-card .btn-secondary { /* Example for "Learn More" */
    margin-top: var(--spacing-medium);
    background-color: var(--color-background); /* Override default if needed */
    color: var(--color-primary);
}


/* Community Section */
.community-section { /* Has background image and overlay */
    position: relative;
    text-align: center;
}
.community-content p {
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--spacing-large);
}
.community-section .btn-primary-outline { /* Button for exploring forums */
    border-color: var(--color-primary);
    color: var(--color-primary);
    background-color: var(--color-text-light); /* Make it pop on dark bg */
}
.community-section .btn-primary-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-text-light);
}


/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-large);
    align-items: stretch; /* Equal height cards */
}
.pricing-card {
    display: flex; /* To use flex-grow on content */
    flex-direction: column;
}
.pricing-card .card-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between; /* Pushes button to bottom */
}
.pricing-card .price-tag {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-small);
}
.pricing-card ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: var(--spacing-medium);
    text-align: left; /* Align list items left within centered card */
}
.pricing-card ul li {
    padding-left: var(--spacing-medium);
    position: relative;
    font-size: 0.95rem;
}
.pricing-card ul li::before {
    content: '✓'; /* Checkmark */
    color: var(--color-primary);
    position: absolute;
    left: 0;
    font-weight: bold;
}
.pricing-card.featured {
    transform: scale(1.05); /* Make featured stand out */
    box-shadow: 10px 10px 20px var(--shadow-color-dark), -10px -10px 20px var(--shadow-color-light);
    background-color: var(--color-background-alt); /* Slightly different bg */
}
.pricing-card.featured .price-tag { color: var(--color-secondary-accent); }


/* External Resources Section */
.resources-list {
    display: grid;
    grid-template-columns: 1fr; /* Single column for list */
    gap: var(--spacing-medium);
}
.resource-item {
    background-color: var(--color-background-alt);
    padding: var(--spacing-medium);
    border-radius: 10px;
    box-shadow: var(--neumorphic-shadow-convex-soft);
}
.resource-item h4 {
    margin-bottom: var(--spacing-xsmall);
    font-size: 1.2rem;
}
.resource-item h4 a {
    color: var(--color-primary);
    font-weight: 600;
}
.resource-item h4 a:hover {
    color: var(--color-primary-dark);
}
.resource-item p {
    font-size: 0.9rem;
    margin-bottom: 0;
}


/* Contact Section */
.contact-form-container {
    max-width: 700px;
    margin: 0 auto var(--spacing-large) auto;
    padding: var(--spacing-large);
    background-color: var(--color-background);
    border-radius: 15px;
    box-shadow: var(--neumorphic-shadow-convex);
}
.contact-details {
    text-align: center;
}
.contact-details h3 {
    margin-bottom: var(--spacing-medium);
    font-size: 1.4rem;
}
.contact-details p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-small);
}


/* -------------------------------------------------------------------
   11. Footer
------------------------------------------------------------------- */
.site-footer {
    background-color: var(--color-text-primary); /* Darker footer */
    color: var(--color-text-light);
    padding: var(--spacing-xlarge) 0 var(--spacing-medium) 0;
    text-align: center;
}
.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-large);
    text-align: left; /* Align text left within grid items */
}
.site-footer h4 {
    color: var(--color-text-light);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-medium);
    opacity: 0.9;
}
.footer-nav ul, .footer-social ul {
    list-style: none;
    padding-left: 0;
}
.footer-nav li, .footer-social p { /* Adjusted for text links in social */
    margin-bottom: var(--spacing-xsmall);
}
.footer-nav a, .footer-social a {
    color: var(--color-background); /* Lighter links for dark footer */
    opacity: 0.8;
    text-decoration: none;
    transition: opacity var(--transition-fast);
}
.footer-nav a:hover, .footer-social a:hover {
    opacity: 1;
    text-decoration: underline;
    color: var(--color-primary); /* Accent on hover */
}
.footer-copyright {
    grid-column: 1 / -1; /* Span full width */
    margin-top: var(--spacing-large);
    padding-top: var(--spacing-medium);
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
    opacity: 0.7;
    text-align: center;
}
.footer-copyright p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xxsmall);
}


/* -------------------------------------------------------------------
   12. Modal & Cookie Consent (Basic styling, JS handles show/hide)
------------------------------------------------------------------- */
/* Modal example for success message - can be expanded */
.modal {
    display: none; /* Hidden by default */
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.6);
}
.modal-content {
    background-color: var(--color-background);
    margin: 15% auto;
    padding: var(--spacing-large);
    border-radius: 15px;
    box-shadow: var(--neumorphic-shadow-convex);
    width: 80%;
    max-width: 500px;
    text-align: center;
    position: relative;
}
.modal-close {
    color: var(--color-text-secondary);
    float: right;
    font-size: 1.8rem;
    font-weight: bold;
    position: absolute;
    top: var(--spacing-small);
    right: var(--spacing-medium);
}
.modal-close:hover,
.modal-close:focus {
    color: var(--color-text-primary);
    text-decoration: none;
    cursor: pointer;
}

/* Cookie Consent (styles are inline in HTML for simplicity as requested for the popup) */
/* This is just a placeholder if global styles were needed */
#cookieConsentPopup { /* If CSS file styling was preferred */
    /* ... styles from HTML ... */
}


/* -------------------------------------------------------------------
   13. Page-Specific Styles (Privacy, Terms, Success)
------------------------------------------------------------------- */
.page-content-container { /* For simple content pages like privacy, terms */
    padding-top: var(--spacing-xxlarge); /* Extra padding from header */
    padding-bottom: var(--spacing-xxlarge);
    min-height: calc(100vh - var(--header-height) - 150px); /* Approx footer height */
}
.page-content-container .container {
    max-width: 800px; /* Narrower content for text pages */
}
.page-content-container h1 {
    margin-bottom: var(--spacing-large);
    text-align: center;
}
.page-content-container h2 {
    margin-top: var(--spacing-large);
    margin-bottom: var(--spacing-small);
    color: var(--color-primary);
}

.success-page-container {
    min-height: calc(100vh - var(--header-height));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-large);
}
.success-page-container .card {
    max-width: 500px;
    padding: var(--spacing-xlarge);
}
.success-page-container h1 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-medium);
}
.success-page-container .icon-success { /* Placeholder for a success icon */
    font-size: 4rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-medium);
    /* Example: content: '✓'; if using a pseudo-element */
}


/* -------------------------------------------------------------------
   14. Media Queries (Responsiveness)
------------------------------------------------------------------- */
@media (max-width: 992px) {
    .hero-title { font-size: 2.5rem; }
    .hero-subtitle { font-size: 1.1rem; }

    .process-timeline::after { left: 30px; }
    .process-step { width: 100%; padding-left: 80px; padding-right: var(--spacing-medium); margin-bottom: var(--spacing-medium); }
    .process-step:nth-child(odd) { left: 0; text-align: left; }
    .process-step:nth-child(even) { left: 0; text-align: left; padding-left: 80px; }
    .process-step .step-number { left: 10px; }
    .process-step:nth-child(even) .step-number { left: 10px; }
}

@media (max-width: 768px) {
    :root {
        --header-height: var(--header-height-mobile);
    }
    body { padding-top: var(--header-height-mobile); }

    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }

    .section-padding, .section-padding-alt {
        padding-top: var(--spacing-xlarge);
        padding-bottom: var(--spacing-xlarge);
    }

    /* Mobile Navigation */
    .nav-toggle { display: block; }
    .main-nav {
        position: fixed;
        top: 0;
        left: -100%; /* Initially hidden */
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-background-alt);
        box-shadow: 5px 0 15px rgba(0,0,0,0.1);
        padding-top: calc(var(--header-height-mobile) + var(--spacing-large));
        transition: left var(--transition-normal);
        z-index: 999; /* Below header toggle, above content */
        overflow-y: auto;
    }
    .main-nav.nav-open { left: 0; }
    .main-nav ul {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }
    .main-nav li {
        margin: 0;
        width: 100%;
    }
    .main-nav a {
        display: block;
        padding: var(--spacing-medium) var(--spacing-large);
        text-align: center;
        border-bottom: 1px solid var(--color-background);
        width: 100%;
        border-radius: 0;
    }
    .main-nav a:hover, .main-nav .active a {
        background-color: var(--color-background);
        box-shadow: none; /* No inset shadow on mobile nav items */
        color: var(--color-primary);
    }

    .instructors-grid, .events-list, .pricing-grid, .research-grid {
        grid-template-columns: 1fr; /* Stack cards on smaller screens */
    }

    .footer-container {
        grid-template-columns: 1fr; /* Stack footer columns */
        text-align: center;
    }
    .footer-container > div {
        margin-bottom: var(--spacing-medium);
    }
    .footer-nav ul, .footer-social p {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container { width: 95%; }
    .hero-title { font-size: 2rem; }
    .hero-subtitle { font-size: 1rem; }
    .btn, button, input[type="submit"] {
        padding: var(--spacing-small) var(--spacing-medium);
        font-size: 0.9rem;
    }
    .process-timeline::after { display: none; } /* Simpler list on very small screens */
    .process-step, .process-step:nth-child(even) {
        width: 100%;
        left: 0;
        padding-left: var(--spacing-medium);
        padding-right: var(--spacing-medium);
        text-align: left;
    }
    .process-step .step-number { display: none; } /* Hide number circle to save space */
    .process-step .step-content { padding: var(--spacing-small); }
}
*{
    opacity: 1 !important;
}