/* ==========================================
   GoGreenThinkTank - Modern CSS Design System
   ========================================== */

/* CSS Custom Properties */
:root {
    /* Color Palette - Soft & Modern */
    --sage-green: #007946;
    --ocean-blue: #4A90A4;
    --mint-fresh: #B8E6B8;
    --warm-coral: #FF8A80;
    --soft-yellow: #F6F3B5;
    --cream-white: #FDFBF7;
    --light-gray: #F5F7FA;
    --medium-gray: #E2E8F0;
    --charcoal: #2C3E50;
    --dark-gray: #4A5568;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--sage-green), var(--ocean-blue));
    --gradient-soft: linear-gradient(135deg, var(--mint-fresh), var(--soft-yellow));
    --gradient-warm: linear-gradient(135deg, var(--warm-coral), var(--sage-green));

    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Inter', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-top: 8rem;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
}




.gradient-button {
    display: inline-block;
    /* Gradient from coral (#f47373) to green (#8dbf8d) */
    background: linear-gradient(90deg, #f47373 0%, #8dbf8d 100%);
    border: none;
    border-radius: 9999px;
    /* Pill shape */
    padding: 0.65em 1.8em;
    color: #ffffff;
    font-weight: 00;
    text-align: center;
    text-decoration: none;
    /* Use a base font-size that scales with viewport width, but clamps between 16px and 22px */
    font-size: clamp(1rem, 2.5vw, 0.375rem);
    line-height: 1.2;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Subtle hover/focus effect */
.gradient-button:hover,
.gradient-button:focus {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
}

.gradient-button:active {
    transform: translateY(0);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15);
}

/* ---------------------------------------------
       3. Responsive Adjustments (Optional)
       - Shrink padding on very small screens
    ---------------------------------------------- */
@media (max-width: 480px) {
    .gradient-button {
        padding: 0.5em 1.2em;
        font-size: small;
    }
}

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

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

body {
    font-family: var(--font-secondary);
    line-height: 1.6;
    color: var(--charcoal);
    background-color: var(--cream-white);
    overflow-x: hidden;
}

/* Typography Scale */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

p {
    margin-bottom: var(--space-md);
    font-size: 1.1rem;
    color: var(--dark-gray);
}

a {
    color: var(--sage-green);
    text-decoration: none;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--ocean-blue);
}

/* Container & Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.section {
    padding: var(--space-3xl) 0;
}

.section-sm {
    padding: var(--space-2xl) 0;
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Flexbox Utilities */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

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

.justify-between {
    justify-content: space-between;
}

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

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



/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--radius-xl);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    color: white;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

/* Cards */
.card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    border: 1px solid var(--medium-gray);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    font-size: 1.5rem;
    color: white;
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
    color: var(--sage-green);
}

.card-description {
    color: var(--dark-gray);
    line-height: 1.6;
    text-align: center;
}

/* Impact Counters */
.impact-section {
    background: var(--charcoal);
    color: white;
    padding: var(--space-3xl) 0;
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
    text-align: center;
}

.impact-item {
    padding: var(--space-lg);
}

.impact-number {
    font-size: clamp(2.5rem, 4vw, 4rem);
    font-weight: 800;
    color: var(--mint-fresh);
    display: block;
    margin-bottom: var(--space-sm);
}

.impact-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Masonry Grid */
.masonry {
    column-count: 3;
    column-gap: var(--space-lg);
    column-fill: balance;
}

.masonry-item {
    break-inside: avoid;
    margin-bottom: var(--space-lg);
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
}

.masonry-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.masonry-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.masonry-content {
    padding: var(--space-lg);
}

/* Carousel */
.carousel {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-xl);
}

.carousel-container {
    display: flex;
    transition: transform var(--transition-slow);
    scroll-snap-type: x mandatory;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.carousel-container::-webkit-scrollbar {
    display: none;
}

.carousel-slide {
    flex: 0 0 100%;
    scroll-snap-align: center;
    position: relative;
    min-height: 400px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-content {
    text-align: center;
    color: white;
    padding: var(--space-xl);
    background: rgba(0, 0, 0, 0.5);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
}

.carousel-content p {
    color: #fff;
}

/* Forms */
.form-group {
    margin-bottom: var(--space-lg);
    position: relative;
}

.form-input {
    width: 100%;
    padding: var(--space-md);
    border: 2px solid var(--medium-gray);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition-smooth);
    background: white;
}

.form-input:focus {
    outline: none;
    border-color: var(--sage-green);
    box-shadow: 0 0 0 3px rgba(135, 169, 107, 0.1);
}

.form-label {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    color: var(--dark-gray);
    transition: var(--transition-smooth);
    pointer-events: none;
    background: white;
    padding: 0 var(--space-xs);
}

.form-input:focus+.form-label,
.form-input:not(:placeholder-shown)+.form-label {
    transform: translateY(-2rem) scale(0.9);
    color: var(--sage-green);
}

/* Section Styling */
.section-title {
    text-align: center;
    margin-bottom: var(--space-md);
    font-size: clamp(2rem, 4vw, 3rem);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--dark-gray);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

/* Domain Cards Grid */
.domains-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.domain-card {
    background: white;
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    border: 1px solid var(--medium-gray);
    text-align: center;
}

.domain-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.domain-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-md);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.domain-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Featured Project Section */
.featured-project {
    padding: 50px 0px;
    position: relative;
    min-height: 60vh;
    display: flex;
    align-items: center;
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    background-image: url('https://images.unsplash.com/photo-1466611653911-95081537e5b7?w=1920&h=1080&fit=crop&auto=format');
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(44, 62, 80, 0.8);
    backdrop-filter: blur(2px);
}

.project-content {
    position: relative;
    z-index: 2;
    color: #87A96B;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.project-content p {
    color: white;
}

.project-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--mint-fresh);
    display: block;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 3em;
}

/* Footer */
.footer {
    background: var(--charcoal);
    color: white;
    padding: var(--space-3xl) 0 var(--space-xl);
}

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

.footer-section h4 {
    color: var(--mint-fresh);
    margin-bottom: var(--space-md);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    display: block;
    margin-bottom: var(--space-xs);
}

.footer-section a:hover {
    color: var(--mint-fresh);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-lg);
    text-align: center;
    color: rgba(234, 230, 230, 0.6);
}

.footer-bottom p {
    color: #fff;
}

/* Responsive Design */
@media (max-width: 768px) {
   



    

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .masonry {
        column-count: 1;
    }

    .grid-3 {
        grid-template-columns: 1fr;
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Disable parallax on mobile for performance */
    .parallax-layer {
        background-attachment: scroll;
        transform: none !important;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-sm);
    }

    .section {
        padding: var(--space-2xl) 0;
    }

    .grid-4 {
        grid-template-columns: 1fr;
    }

    .project-stats {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}