/* css/buymechai.css */

/* Overall Page Layout - Consistent with other tool pages */
main {
    padding: 4rem 0 5rem; 
    background-color: var(--bg-main);
    overflow-x: hidden; 
}

/* Consistent section styling */
section {
    margin-bottom: 4rem; /* Space between main sections */
}

/* --- Support Hero Section --- */
.support-hero-section {
    background-color: var(--accent-color);
    color: var(--text-light);
    padding: 5rem 0; /* More vertical padding for hero */
    text-align: center;
    border-radius: 24px; /* Matches card border radius */
    box-shadow: 0 10px 30px rgba(0,0,0,0.15); /* Soft shadow for hero */
    margin-top: 2rem; /* Space from header */
    max-width: 1200px; /* Limit hero width */
    margin-left: auto;
    margin-right: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}
html[data-theme="dark"] .support-hero-section {
    background-color: var(--accent-color); /* Use dark theme accent */
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.support-hero-section .container {
    max-width: 800px; /* Smaller container for hero text */
}

.support-hero-icon {
    font-size: 5rem;
    margin-bottom: 1.5rem;
    animation: bounceIn 0.8s ease-out; /* Simple entry animation */
}

@keyframes bounceIn {
    0% { opacity: 0; transform: translateY(50px) scale(0.5); }
    60% { opacity: 1; transform: translateY(-10px) scale(1.1); }
    100% { transform: translateY(0) scale(1); }
}


.support-hero-section h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem); 
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.04em;
}

.support-hero-section .hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.35rem); 
    line-height: 1.7;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.support-hero-section .support-hero-btn {
    background-color: var(--text-light);
    color: var(--accent-color);
    padding: 1rem 2.5rem;
    font-size: var(--fs-lg);
    font-weight: 700;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}
.support-hero-section .support-hero-btn:hover {
    background-color: var(--bg-highlight); /* Use lighter highlight on hover */
    color: var(--accent-color);
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
    transform: translateY(-2px);
}
html[data-theme="dark"] .support-hero-section .support-hero-btn:hover {
    background-color: var(--bg-card); /* Lighter dark bg */
}


/* --- Contribution Options Section (Pricing Cards) --- */
.contribution-options-section .section-title {
    margin-top: 4rem; /* Space from hero */
    margin-bottom: 1rem;
}
.contribution-options-section .section-subtitle {
    margin-bottom: 3rem;
}

.pricing-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    max-width: 1200px; /* Max width for the grid */
    margin: 0 auto;
}

.pricing-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: var(--space-xl);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.2s ease;
    cursor: pointer;
    position: relative; /* For the badge if re-added */
}
html[data-theme="dark"] .pricing-card {
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.pricing-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
    transform: translateY(-5px);
}

.pricing-card.active {
    border-color: var(--accent-color);
    background-color: color-mix(in srgb, var(--accent-color) 8%, transparent); /* Light tint */
    box-shadow: 0 8px 30px rgba(76, 81, 191, 0.25);
    transform: translateY(-5px);
}
html[data-theme="dark"] .pricing-card.active {
    background-color: color-mix(in srgb, var(--accent-color) 12%, transparent);
    box-shadow: 0 8px 30px rgba(129, 140, 248, 0.25);
}

.pricing-card .card-header {
    margin-bottom: 1.5rem;
    width: 100%;
}

.pricing-card .card-title {
    font-size: var(--fs-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.pricing-card .card-price {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--accent-color);
    line-height: 1;
}
.pricing-card .card-price .currency {
    font-size: 0.6em;
    vertical-align: super;
}

.pricing-card .card-features {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem 0;
    width: 100%;
    text-align: left;
}

.pricing-card .card-features li {
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.pricing-card .card-features li i {
    color: var(--accent-color);
    font-size: 1em;
}
.pricing-card .card-features li .fa-circle-xmark {
    color: var(--danger); /* Use danger color for xmark */
}


.pricing-card .card-btn {
    width: 100%;
    margin-top: auto; /* Push button to bottom */
    border-radius: 8px;
    padding: 0.8rem 1.5rem;
    font-weight: 600;
    font-size: var(--fs-base);
}
.pricing-card.active .card-btn {
    background-color: var(--accent-color);
    color: var(--text-light);
    border-color: var(--accent-color);
}
.pricing-card.active .card-btn:hover {
    background-color: var(--btn-primary-hover);
    border-color: var(--btn-primary-hover);
}


/* --- Custom Contribution Section --- */
.custom-contribution-section {
    margin-top: 4rem;
}

.custom-contribution-content.card {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    padding: var(--space-xxl);
    border-radius: 24px;
    max-width: 900px; /* Limit width */
    margin: 0 auto;
}

.custom-slider-visual {
    flex-shrink: 0;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background-color: var(--bg-highlight);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: inset 0 0 15px rgba(0,0,0,0.1);
}
html[data-theme="dark"] .custom-slider-visual {
    background-color: var(--bg-main);
}

.animated-chai-icon {
    font-size: 6rem;
    color: var(--accent-color);
    transition: transform 0.2s ease-out, opacity 0.2s ease-out;
}

.custom-amount-display {
    position: absolute;
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--text-primary);
}
.custom-amount-display .currency {
    font-size: 0.6em;
    vertical-align: super;
}

.custom-slider-controls {
    flex-grow: 1;
    text-align: left;
}
.custom-slider-controls h3 {
    font-size: var(--fs-xl);
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}
.custom-slider-controls p {
    font-size: var(--fs-base);
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.slider-wrapper {
    position: relative;
    padding: 0.5rem 0;
    margin-bottom: 1.5rem;
}
#custom-amount-slider {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 8px;
    background: var(--border-color);
    border-radius: 5px;
    outline: none;
    opacity: 0.7;
    transition: opacity .2s;
}
#custom-amount-slider:hover {
    opacity: 1;
}
#custom-amount-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    border: 2px solid var(--text-light);
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
#custom-amount-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    border: 2px solid var(--text-light);
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.min-max-labels {
    display: flex;
    justify-content: space-between;
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.min-amount-warning {
    background-color: #fef2f2; 
    border: 1px solid #ef4444; 
    color: #b91c1c; 
    padding: 0.8rem 1rem; 
    border-radius: 8px; 
    margin-top: 1rem; 
    display: none; /* Controlled by JS */
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--fs-sm);
}
html[data-theme="dark"] .min-amount-warning {
    background-color: #3f0f0f;
    border-color: #dc2626;
    color: #ef4444;
}

/* --- QR Payment Section --- */
.qr-payment-section {
    margin-top: 4rem;
}
.qr-payment-section .section-title {
    margin-bottom: 1rem;
}
.qr-payment-section .section-subtitle {
    margin-bottom: 3rem;
}

.qr-display-container.card {
    padding: var(--space-xl);
    max-width: 500px; /* Limit QR container width */
    margin: 0 auto;
    border-radius: 16px;
    text-align: center;
}

.qr-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
    color: var(--text-secondary);
}
.qr-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--border-color);
}
.qr-placeholder p {
    font-size: var(--fs-base);
    margin: 0;
    max-width: 250px;
}

.qr-display {
    display: flex; /* Initially hidden, shown by JS */
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}
.qr-code-img {
    width: 200px;
    height: 200px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--text-light); /* QR code should always be on light background */
}

.payment-details {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    font-size: var(--fs-base);
    color: var(--text-primary);
}
.payment-details .amount-display {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 700;
    color: var(--accent-color);
}
.payment-details .amount-display .currency {
    font-size: 0.7em;
    vertical-align: super;
}

.upi-details-wrapper {
    display: flex;
    align-items: center;
    background-color: var(--bg-highlight);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.6rem 1rem;
    font-size: var(--fs-sm);
    color: var(--text-primary);
    gap: 0.75rem;
}
html[data-theme="dark"] .upi-details-wrapper {
    background-color: var(--bg-main);
}

.upi-details-wrapper .upi-id-wrapper { /* For UPI ID text span */
    flex-grow: 1;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.copy-upi-btn {
    flex-shrink: 0;
    font-size: var(--fs-sm);
    padding: 0.5rem 0.8rem;
    border-radius: 6px;
    min-width: unset; /* Override button min-width */
}
.copy-upi-btn .copy-icon, .copy-upi-btn .copied-icon {
    display: inline-block; /* Keep them inline for hiding/showing */
    margin-right: 0.25rem;
    transition: all 0.3s ease;
}
.copy-upi-btn .copied-icon {
    display: none; /* Hidden by default */
    color: var(--success);
}
.copy-upi-btn.active { /* Class added by JS on click */
    background-color: var(--success); /* Green background on copy */
    border-color: var(--success);
    color: var(--text-light);
}
.copy-upi-btn.active:hover {
    background-color: color-mix(in srgb, var(--success) 80%, black); /* Darken green on hover */
    border-color: color-mix(in srgb, var(--success) 80%, black);
}


/* --- Unlimited Amount Popup (inherited popup-modal styles) --- */
#unlimited-amount-popup {
    /* Styles are mostly inherited from .popup-modal in popup.css */
}
#unlimited-amount-popup .popup-modal-content {
    max-width: 500px;
}
#unlimited-amount-input {
    text-align: center;
    font-size: var(--fs-lg);
    padding: 0.85rem 1.2rem;
}
.unlimited-warning-message {
    background-color: #fef2f2; 
    border: 1px solid #ef4444; 
    color: #b91c1c; 
    padding: 0.8rem 1rem; 
    border-radius: 8px; 
    margin-top: 1rem; 
    display: none; /* Controlled by JS */
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--fs-sm);
}
html[data-theme="dark"] .unlimited-warning-message {
    background-color: #3f0f0f;
    border-color: #dc2626;
    color: #ef4444;
}
#unlimited-amount-generate-btn {
    width: 100%;
    margin-top: 1.5rem;
    font-size: var(--fs-base);
    padding: 0.9rem 1.5rem;
}
/* QR display inside popup has its own IDs */
#qr-display-unlimited {
    margin-top: 1.5rem;
}

/* --- Global persistent copy notice --- */
#copy-notice {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px); /* Start off-screen */
    background-color: var(--accent-color);
    color: var(--text-light);
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease-out;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 10000;
}
#copy-notice.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
#copy-notice i {
    font-size: 1.2rem;
}


/* --- Responsive Adjustments --- */
@media (max-width: 992px) { 
    main { padding: 2.5rem 0 3.5rem; }

    .support-hero-section {
        padding: 3.5rem 0;
        margin-top: 1rem;
    }
    .support-hero-icon { font-size: 4rem; margin-bottom: 1rem; }
    .support-hero-section h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
    .support-hero-section .hero-subtitle { font-size: var(--fs-base); margin-bottom: 1.5rem; }
    .support-hero-section .support-hero-btn { padding: 0.8rem 2rem; font-size: var(--fs-base); border-radius: 10px; }

    .contribution-options-section .section-title { margin-top: 3rem; margin-bottom: 0.8rem; }
    .contribution-options-section .section-subtitle { margin-bottom: 2.5rem; }
    .pricing-cards-grid { gap: var(--space-lg); }
    .pricing-card { padding: var(--space-lg); border-radius: 12px; }
    .pricing-card .card-title { font-size: var(--fs-xl); }
    .pricing-card .card-price { font-size: clamp(1.8rem, 4vw, 2.5rem); }
    .pricing-card .card-features li { font-size: var(--fs-sm); margin-bottom: 0.5rem; }
    .pricing-card .card-btn { padding: 0.7rem 1.2rem; font-size: var(--fs-sm); border-radius: 8px; }

    .custom-contribution-section { margin-top: 3rem; }
    .custom-contribution-content.card {
        flex-direction: column;
        padding: var(--space-lg);
        gap: 2rem;
    }
    .custom-slider-visual {
        width: 160px; height: 160px;
    }
    .animated-chai-icon { font-size: 5rem; }
    .custom-amount-display { font-size: clamp(1.5rem, 4vw, 2.5rem); }
    .custom-slider-controls h3 { font-size: var(--fs-xl); }
    .custom-slider-controls p { font-size: var(--fs-sm); margin-bottom: 1rem;}
    .min-max-labels { font-size: var(--fs-sm); }
    #custom-amount-btn { font-size: var(--fs-sm); padding: 0.8rem 1.5rem; }
    
    .qr-payment-section { margin-top: 3rem; }
    .qr-payment-section .section-title { margin-bottom: 0.8rem; }
    .qr-payment-section .section-subtitle { margin-bottom: 2rem; }
    .qr-display-container.card { padding: var(--space-lg); }
    .qr-placeholder i { font-size: 3rem; margin-bottom: 0.8rem; }
    .qr-placeholder p { font-size: var(--fs-sm); }
    .qr-display { gap: 1rem; }
    .qr-code-img { width: 180px; height: 180px; }
    .payment-details { font-size: var(--fs-sm); }
    .payment-details .amount-display { font-size: clamp(1rem, 2.5vw, 1.5rem); }
    .upi-details-wrapper { padding: 0.5rem 0.8rem; font-size: var(--fs-xs); }
    .copy-upi-btn { padding: 0.4rem 0.6rem; font-size: var(--fs-xs); }

    #unlimited-amount-popup .popup-modal-content { max-width: 400px; padding: var(--space-lg); }
    #unlimited-amount-input { font-size: var(--fs-base); padding: 0.7rem 1rem; }
    #unlimited-amount-generate-btn { font-size: var(--fs-sm); padding: 0.8rem 1.2rem; }
    .unlimited-warning-message { padding: 0.6rem 1rem; font-size: var(--fs-xs); }
}

@media (max-width: 576px) { 
    main { padding: 1.5rem 0 2rem; }

    .support-hero-section {
        padding: 2.5rem 0;
        margin-top: 0.5rem;
        border-radius: 16px;
    }
    .support-hero-icon { font-size: 3.5rem; margin-bottom: 1rem; }
    .support-hero-section h1 { font-size: clamp(1.8rem, 4.5vw, 2.8rem); }
    .support-hero-section .hero-subtitle { font-size: var(--fs-sm); margin-bottom: 1rem; }
    .support-hero-section .support-hero-btn { padding: 0.7rem 1.5rem; font-size: var(--fs-sm); border-radius: 8px; }

    .contribution-options-section .section-title { margin-top: 2rem; margin-bottom: 0.5rem; }
    .contribution-options-section .section-subtitle { margin-bottom: 1.5rem; font-size: var(--fs-sm); }
    .pricing-cards-grid { gap: var(--space-md); grid-template-columns: 1fr; } /* Stack vertically */
    .pricing-card { padding: var(--space-md); border-radius: 10px; }
    .pricing-card .card-title { font-size: var(--fs-lg); }
    .pricing-card .card-price { font-size: clamp(1.5rem, 4vw, 2rem); }
    .pricing-card .card-features li { font-size: var(--fs-xs); margin-bottom: 0.4rem; }
    .pricing-card .card-btn { padding: 0.6rem 1rem; font-size: var(--fs-xs); border-radius: 6px; }

    .custom-contribution-section { margin-top: 2rem; }
    .custom-contribution-content.card {
        padding: var(--space-md);
        gap: 1.5rem;
        border-radius: 16px;
    }
    .custom-slider-visual { width: 120px; height: 120px; }
    .animated-chai-icon { font-size: 4rem; }
    .custom-amount-display { font-size: clamp(1.2rem, 3.5vw, 2rem); }
    .custom-slider-controls h3 { font-size: var(--fs-lg); }
    .custom-slider-controls p { font-size: var(--fs-xs); margin-bottom: 0.8rem;}
    .min-max-labels { font-size: var(--fs-xs); }
    #custom-amount-btn { font-size: var(--fs-xs); padding: 0.6rem 1rem; }

    .qr-payment-section { margin-top: 2rem; }
    .qr-payment-section .section-title { margin-bottom: 0.5rem; }
    .qr-payment-section .section-subtitle { margin-bottom: 1.5rem; font-size: var(--fs-sm);}
    .qr-display-container.card { padding: var(--space-md); border-radius: 12px; }
    .qr-placeholder i { font-size: 2.5rem; margin-bottom: 0.8rem; }
    .qr-placeholder p { font-size: var(--fs-xs); }
    .qr-display { gap: 0.8rem; }
    .qr-code-img { width: 150px; height: 150px; }
    .payment-details { font-size: var(--fs-xs); }
    .payment-details .amount-display { font-size: clamp(1rem, 2vw, 1.2rem); }
    .upi-details-wrapper { padding: 0.4rem 0.6rem; font-size: 0.65rem; gap: 0.5rem;}
    .copy-upi-btn { padding: 0.3rem 0.5rem; font-size: 0.6rem; }

    #unlimited-amount-popup .popup-modal-content { max-width: 300px; padding: var(--space-md); }
    #unlimited-amount-input { font-size: var(--fs-base); padding: 0.6rem 0.8rem; }
    #unlimited-amount-generate-btn { font-size: var(--fs-xs); padding: 0.7rem 1rem; }
    .unlimited-warning-message { padding: 0.5rem 0.8rem; font-size: 0.65rem; }

    #copy-notice {
        font-size: var(--fs-xs);
        padding: 0.5rem 1rem;
        bottom: 10px;
    }
}