/* CTIM Design System */

:root {
    /* Primitive Colors */
    --color-lime: #8CC63F;
    --color-lime-light: #A8D36B;
    --color-lime-dark: #6D9E2F;
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    --color-black: #000000;

    /* Semantic Tokens (Default Light) */
    --primary-color: var(--color-lime);
    --primary-light: var(--color-lime-light);
    --primary-dark: var(--color-lime-dark);

    --bg-body: var(--color-white);
    --bg-surface: var(--color-white);
    --bg-light: var(--color-gray-50);

    --text-main: var(--color-gray-900);
    --text-muted: #666666;
    --text-inverse: var(--color-white);

    --border-color: var(--color-gray-200);

    /* Typography */
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --font-heading: 'Outfit', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Shadows - Enhanced for better light mode contrast */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

    /* Footer Colors */
    --footer-bg: #1a202c;
    /* Ensure deep dark for footer */
    --footer-text: #f7fafc;
}

[data-theme="dark"] {
    --bg-body: var(--color-gray-900);
    --bg-surface: var(--color-gray-800);
    --bg-light: #1A202C;

    --text-main: var(--color-gray-50);
    --text-muted: #9CA3AF;
    --text-inverse: var(--color-gray-900);

    --border-color: #374151;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.5);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s, color 0.3s;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--text-main);
    line-height: 1.2;
}

footer h4 {
    color: white;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section-padding {
    padding: var(--spacing-lg) 0;
}

.text-center {
    text-align: center;
}

.text-primary {
    color: var(--primary-color);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, background-color 0.3s, box-shadow 0.3s;
    border: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-inverse);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

/* Navbar */
.navbar {
    position: relative;
    /* Changed from sticky to relative as requested */
    width: 100%;
    background-color: var(--bg-surface);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    transition: background-color 0.3s;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 60px;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    font-weight: 500;
    color: var(--text-muted);
}

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

/* Footer */
footer {
    background-color: var(--footer-bg, #2D3748);
    color: var(--footer-text, #ffffff);
    padding: var(--spacing-lg) 0 var(--spacing-sm);
    border-top: 5px solid var(--primary-color);
    /* Add a pop of color */
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: 25px;
}

/* WhatsApp Float */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 30px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
}

.whatsapp-float:hover {
    transform: scale(1.1);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-light) 100%);
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--spacing-lg);
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.hero-image img {
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
}

/* Units Highlights */
.units-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.unit-card {
    background: var(--bg-surface);
    padding: var(--spacing-md);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, background-color 0.3s;
    border: 1px solid var(--border-color);
}

.unit-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.unit-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

/* Therapy Cards */
.therapy-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.therapy-card.reverse {
    flex-direction: row-reverse;
}

.therapy-content {
    flex: 1;
}

.therapy-image {
    flex: 1;
}

/* Contact Form */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-form .form-group {
    margin-bottom: var(--spacing-sm);
}

.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-light);
}

/* Unit Details specific */
.unit-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.unit-info h2,
.unit-info h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.unit-info h3 {
    font-size: 1.25rem;
    margin-top: var(--spacing-md);
}

/* Mobile Adjustments & Components */
@media (max-width: 992px) {

    .therapy-card,
    .therapy-card.reverse {
        flex-direction: column;
    }

    .contact-grid,
    .unit-details {
        grid-template-columns: 1fr;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .units-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1024px) {
    .nav-links {
        display: none;
    }

    .hamburger {
        display: flex !important;
        /* Force display */
    }

    .hamburger span {
        background-color: var(--color-lime) !important;
        /* Force black color for visibility against white */
    }

    .mobile-hidden {
        display: none;
    }
}

/* Custom Theme Toggle Switch */
.theme-toggle-btn {
    background: linear-gradient(to right, #8e44ad, #3498db);
    /* Night */
    border: none;
    cursor: pointer;
    width: 60px;
    height: 30px;
    border-radius: 30px;
    position: relative;
    padding: 0;
    transition: background 0.5s ease;
    overflow: hidden;
    display: flex;
    align-items: center;
}

[data-theme="light"] .theme-toggle-btn {
    background: linear-gradient(to right, #87CEEB, #E0F7FA);
    /* Day */
}

.theme-toggle-btn::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: #f1c40f;
    /* Sun */
    transform: translateX(30px);
    /* Light Position */
    transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55), background 0.5s;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    z-index: 2;
    pointer-events: none;
}

[data-theme="dark"] .theme-toggle-btn {
    background: linear-gradient(to right, #2c3e50, #4ca1af);
}

[data-theme="dark"] .theme-toggle-btn::after {
    transform: translateX(2px);
    /* Left */
    background: #bdc3c7;
    /* Moon */
    box-shadow: inset -3px -1px 0 1px #95a5a6;
}

.theme-toggle-btn::before {
    content: '☁️';
    position: absolute;
    left: 7px;
    font-size: 14px;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

[data-theme="light"] .theme-toggle-btn::before {
    opacity: 1;
}

.theme-toggle-btn .star {
    position: absolute;
    right: 7px;
    color: white;
    font-size: 10px;
    opacity: 0;
    pointer-events: none;
}

[data-theme="dark"] .theme-toggle-btn .star {
    opacity: 1;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    z-index: 10000;
    /* Higher than overlay */
}

.hamburger span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--text-main);
    border-radius: 2px;
    transition: all 0.5s ease-out;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-surface);
    z-index: 9999;
    /* Boosted Z-Index to ensure visibility */
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
    display: flex;
    visibility: hidden;
    opacity: 0;
}

.mobile-menu-overlay.active {
    right: 0;
    visibility: visible;
    opacity: 1;
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    text-align: center;
}

.mobile-menu-links a {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-main);
}