/* ----- Color System ----- */
:root {
    --primary: #2E7D32;
    /* deep green */
    --primary-dark: #1f5a24;
    --accent: #FF8F00;
    /* warm orange */
    --bg-light: #F7F9FC;
    /* light grey background */
    --text-dark: #1F2D2E;
    /* dark charcoal */
    --text-muted: #5a6c6d;
    /* Base CSS Compatibility Variables */
    --earth-green: #2C7A4B;
    --warm-terracotta: #D9733B;
    --dark-text: #1F2D2E;
    --white: #ffffff;
    --shadow-soft: 0 8px 20px rgba(0, 40, 20, 0.06);
    --shadow-hover: 0 16px 30px rgba(46, 125, 50, 0.12);
    --border-radius: 16px;
    --transition: all 0.25s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.5;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 5rem 0;
}

h1,
h2,
h3 {
    font-weight: 700;
    color: var(--text-dark);
}

h1 {
    font-size: 3.2rem;
    line-height: 1.2;
}

h2 {
    font-size: 2.4rem;
    margin-bottom: 2rem;
    position: relative;
}

h2:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 70px;
    height: 4px;
    background-color: var(--accent);
    border-radius: 4px;
}

.text-center h2:after {
    left: 50%;
    transform: translateX(-50%);
}

/* Buttons */
.btn {
    display: inline-block;
    background-color: var(--primary);
    color: white;
    font-weight: 600;
    padding: 0.9rem 2.2rem;
    border-radius: 40px;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1.05rem;
    box-shadow: 0 6px 14px rgba(46, 125, 50, 0.2);
}

.btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 22px rgba(46, 125, 50, 0.3);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    box-shadow: none;
}

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

/* Scroll reveal animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ----- Hero Section ----- */
.hero {
    background: linear-gradient(145deg, #e8f1e8, #d9e6d9);
    border-radius: 0 0 40px 40px;
    padding: 4rem 0;
}

.hero .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 3rem;
}

.hero-content {
    flex: 1 1 400px;
}

.hero-content h1 {
    color: var(--primary);
}

.hero-content p {
    font-size: 1.2rem;
    margin: 1.5rem 0 2rem;
    color: var(--text-muted);
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.hero-image {
    flex: 1 1 300px;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    border-radius: 40px;
    box-shadow: var(--shadow-hover);
}

/* ----- Donation Options Cards ----- */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.donation-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem 1.5rem;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
    text-align: center;
    border: 2px solid transparent;
}

.donation-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-bottom: 4px solid var(--accent);
}

.donation-card.selected {
    border-color: var(--primary);
    box-shadow: var(--shadow-hover);
}

.donation-card i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1.2rem;
}

.donation-card h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.donation-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.card-btn {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: 0.6rem 1.8rem;
    border-radius: 40px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.card-btn:hover,
.card-btn.selected {
    background: var(--primary);
    color: white;
}

/* ----- Amount Selector ----- */
.amount-selector {
    background-color: var(--white);
    border-radius: 40px;
    padding: 2rem;
    box-shadow: var(--shadow-soft);
}

.preset-amounts {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
}

.amount-pill {
    background-color: var(--bg-light);
    border: 1px solid #ddd;
    border-radius: 40px;
    padding: 0.7rem 1.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.amount-pill:hover {
    background-color: #e0e7e0;
    transform: scale(1.02);
}

.amount-pill.active {
    background-color: var(--primary);
    color: white;
    border-color: var(--primary);
}

.custom-amount {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.custom-amount label {
    font-weight: 500;
}

.custom-amount input {
    flex: 1 1 200px;
    padding: 0.8rem 1rem;
    border: 1.5px solid #ddd;
    border-radius: 40px;
    font-size: 1rem;
    transition: var(--transition);
}

.custom-amount input:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

/* ----- Donor Form ----- */
.donor-form {
    background-color: var(--white);
    border-radius: 32px;
    padding: 2.5rem;
    box-shadow: var(--shadow-soft);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 500;
    margin-bottom: 0.4rem;
}

.required::after {
    content: "*";
    color: #d32f2f;
    margin-left: 4px;
}

.form-group input,
.form-group textarea {
    padding: 0.8rem 1rem;
    border: 1.5px solid #e0e7e0;
    border-radius: 30px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

/* ----- Payment Methods ----- */
.payment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.payment-item {
    background-color: var(--white);
    border-radius: 30px;
    padding: 1.5rem 0.5rem;
    text-align: center;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
    cursor: default;
}

.payment-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
}

.payment-item i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.payment-item span {
    display: block;
    font-weight: 600;
}

/* ----- Trust Signals ----- */
.trust-badge {
    background-color: var(--white);
    border-radius: 40px;
    padding: 2rem;
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-around;
    gap: 1.5rem;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 500;
}

.trust-item i {
    font-size: 2rem;
    color: var(--primary);
}

.secure-badge {
    background-color: #e8f1e8;
    padding: 0.5rem 1.2rem;
    border-radius: 40px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--primary);
}

/* ----- Impact Stats Cards ----- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 2rem;
}

.stat-card {
    background-color: var(--white);
    border-radius: 30px;
    padding: 2rem 1rem;
    text-align: center;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 1.1rem;
    color: var(--text-muted);
}

/* ----- Testimonials ----- */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background-color: var(--white);
    border-radius: 30px;
    padding: 2rem;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.testimonial-photo {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 3px solid var(--accent);
}

.testimonial-quote {
    font-style: italic;
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.testimonial-name {
    font-weight: 700;
    color: var(--primary);
}

/* ----- Help Section ----- */
.help-section {
    background-color: var(--white);
    border-radius: 50px;
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-soft);
}

.help-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.help-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    background-color: var(--bg-light);
    padding: 1rem 2rem;
    border-radius: 40px;
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    transition: var(--transition);
}

.help-btn i {
    font-size: 1.4rem;
}

.help-btn.call i {
    color: #25D366;
}

/* whatsapp green? but we use generic */
.help-btn.whatsapp i {
    color: #25D366;
}

.help-btn.email i {
    color: #EA4335;
}

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

.help-btn:hover i {
    color: white;
}

/* Mobile Sticky Donate Button (visible only on small screens) */
.sticky-donate {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary);
    color: white;
    font-weight: 700;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    text-decoration: none;
    border: 2px solid white;
    transition: var(--transition);
}

.sticky-donate:hover {
    background-color: var(--primary-dark);
    transform: translateX(-50%) translateY(-3px);
}

/* ----- Payment Modals ----- */
.payment-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.payment-modal-overlay.active {
    display: flex;
    opacity: 1;
}

.payment-modal {
    background-color: var(--white);
    border-radius: 24px;
    width: 90%;
    max-width: 450px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    transform: translateY(20px);
    transition: transform 0.3s ease;
    display: none;
    overflow: hidden;
}

.payment-modal.active {
    display: block;
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background-color: var(--bg-light);
    border-bottom: 1px solid #eaeaea;
}

.modal-header h3 {
    font-size: 1.4rem;
    color: var(--text-dark);
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s;
}

.close-modal:hover {
    color: #d32f2f;
}

.modal-body, .modal-processing, .modal-result {
    padding: 2rem;
    text-align: center;
}

.upi-tabs {
    display: flex;
    margin-bottom: 1.5rem;
    border-radius: 12px;
    background-color: var(--bg-light);
    padding: 4px;
}

.upi-tab {
    flex: 1;
    padding: 0.8rem;
    border: none;
    background: transparent;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 8px;
    transition: var(--transition);
}

.upi-tab.active {
    background-color: var(--white);
    color: var(--primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.upi-section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.upi-section.active {
    display: block;
}

.qr-box {
    margin: 1.5rem auto;
    padding: 1rem;
    border: 2px dashed #ccc;
    border-radius: 16px;
    width: fit-content;
    background-color: #fcfcfc;
}

.qr-box img {
    border-radius: 8px;
    display: block;
}

.btn-full {
    width: 100%;
}

/* Loader */
.loader-spinner {
    border: 4px solid #eaeaea;
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero .container {
        flex-direction: column;
    }

    .hero-image {
        order: -1;
    }

    .sticky-donate {
        display: block;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

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