/* Variables */
:root {
    --primary-purple: #4B2E83;
    --primary-green: #39B54A;
    --white: #FFFFFF;
    --light-gray: #F5F5F5;
    --gray-medium: #666666;
    --gray-dark: #333333;
    --purple-light: rgba(75, 46, 131, 0.05);
    --purple-medium: rgba(75, 46, 131, 0.1);
    --purple-gradient: linear-gradient(135deg, #4B2E83 0%, #6b4098 100%);
    --green-gradient: linear-gradient(135deg, #39B54A 0%, #2d9d3d 100%);
    --card-gradient: linear-gradient(135deg, rgba(75, 46, 131, 0.03) 0%, rgba(57, 181, 74, 0.03) 100%);
    --hero-gradient: linear-gradient(135deg, rgba(75, 46, 131, 0.1) 0%, rgba(255, 255, 255, 0.95) 100%);
    --content-max-width: 1400px;
    --section-padding: 8rem;
    --section-padding-mobile: 4rem;
    --font-size-base: 1.1rem;
    --font-size-h1: 3.5rem;
    --font-size-h2: 2.5rem;
    --font-size-h3: 1.8rem;
    --font-size-h4: 1.5rem;
    --font-size-small: 0.95rem;
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 6px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 12px 30px rgba(0, 0, 0, 0.2);
}

/* Donation Section Base */
.donation-section {
    padding: var(--section-padding) 2rem;
    width: 100%;
    color: var(--gray-dark);
    position: relative;
    background: var(--hero-gradient);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.donation-section-content {
    max-width: var(--content-max-width);
    margin: 0 auto;
    position: relative;
    z-index: 2;
    padding-bottom: 2rem;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.donation-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--purple-gradient);
}

.donation-section h1 {
    text-align: center;
    color: var(--primary-purple);
    font-size: var(--font-size-h1);
    margin-bottom: 2.5rem;
    position: relative;
    padding-bottom: 1.5rem;
    font-weight: 800;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.donation-section h1::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 180px;
    height: 5px;
    background: var(--green-gradient);
    border-radius: 5px;
}

.donation-section > p {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 4rem;
    font-size: 1.3rem;
    color: var(--gray-medium);
    line-height: 1.8;
    padding: 0;
    font-weight: 500;
}

/* Donation Causes Grid */
.donation-causes {
    display: flex;
    gap: 1.5rem;
    margin: 3rem 0;
    padding: 1.5rem;
    overflow-x: auto;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
}

.donation-causes::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.cause-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 15px;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid rgba(75, 46, 131, 0.1);
    flex: 0 0 250px;
    min-width: 250px;
}

.cause-card:hover {
    transform: translateY(-2px);
    border-color: rgba(75, 46, 131, 0.2);
}

.cause-card i {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.cause-card h3 {
    color: var(--primary-purple);
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    font-weight: 700;
}

.cause-card p {
    color: var(--gray-medium);
    line-height: 1.5;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    flex-grow: 1;
}

.cause-card .btn-donate {
    padding: 0.7rem 1.5rem;
    font-size: 0.95rem;
    min-width: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: auto;
    width: 100%;
}

.cause-card .btn-donate i {
    font-size: 1rem;
    margin: 0;
    background: none;
    -webkit-text-fill-color: currentColor;
}

.cause-card .btn-donate:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(57, 181, 74, 0.3);
}

@media (max-width: 1200px) {
    .cause-card {
        flex: 0 0 220px;
        min-width: 220px;
    }
}

@media (max-width: 768px) {
    .donation-causes {
        padding: 1rem;
        margin: 2rem 0;
    }

    .cause-card {
        flex: 0 0 200px;
        min-width: 200px;
        padding: 1.2rem;
    }

    .cause-card .btn-donate {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }

    .donation-section {
        padding: var(--section-padding-mobile) 1rem;
    }

    .donation-section > p {
        font-size: 1.1rem;
        line-height: 1.6;
        margin-bottom: 3rem;
        padding: 0 1rem;
    }
}

/* Donation Methods Section */
.donation-methods-section {
    background: var(--purple-gradient);
    padding: var(--section-padding) 2rem;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.donation-methods-content {
    max-width: var(--content-max-width);
    margin: 0 auto;
    position: relative;
    z-index: 2;
    padding-bottom: 2rem;
}

.donation-methods-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/pattern-bg.png') repeat;
    opacity: 0.05;
    animation: moveBackground 20s linear infinite;
}

@keyframes moveBackground {
    from { background-position: 0 0; }
    to { background-position: 100% 100%; }
}

.donation-methods-section h2 {
    color: var(--white);
    text-align: center;
    font-size: var(--font-size-h2);
    margin-bottom: 4rem;
    position: relative;
    font-weight: 800;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.donation-methods {
    display: flex;
    gap: 1.5rem;
    max-width: var(--content-max-width);
    margin: 0 auto;
    position: relative;
    z-index: 1;
    padding: 1.5rem;
    justify-content: center;
    flex-wrap: nowrap;
}

.method-card {
    flex: 1;
    min-width: 220px;
    max-width: 260px;
    background: rgba(255, 255, 255, 0.98);
    padding: 2rem 1.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.method-card::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 4px;
    background: var(--green-gradient);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
}

.method-card:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.method-card i {
    font-size: 1.8rem;
    background: var(--purple-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

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

.method-card:hover i {
    transform: scale(1.15);
}

.method-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    padding-bottom: 0.8rem;
    border-bottom: 2px solid var(--purple-light);
}

.method-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 0.4rem;
}

.method-card small {
    display: block;
    color: var(--gray-medium);
    font-size: var(--font-size-small);
    margin-top: 1.2rem;
    font-style: italic;
    opacity: 0.8;
}

/* Contact Information */
.contact-info {
    background: var(--card-gradient);
    padding: var(--section-padding) 2rem;
    width: 100%;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-info-content {
    max-width: var(--content-max-width);
    margin: 0 auto;
    position: relative;
    z-index: 2;
    padding-bottom: 2rem;
}

.contact-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/pattern-bg.png') repeat;
    opacity: 0.03;
    animation: moveBackground 30s linear infinite;
}

.contact-info h2 {
    color: var(--primary-purple);
    font-size: var(--font-size-h2);
    margin-bottom: 3.5rem;
    position: relative;
    z-index: 1;
    text-align: center;
    font-weight: 800;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.contact-grid {
    display: flex;
    gap: 1.5rem;
    position: relative;
    z-index: 1;
    padding: 1.5rem;
    justify-content: center;
    flex-wrap: nowrap;
}

.contact-details {
    flex: 1;
    min-width: 250px;
    max-width: 300px;
    background: rgba(255, 255, 255, 0.95);
    padding: 2rem 1.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

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

.contact-details h3 {
    font-size: 1.3rem;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.contact-details h3 i {
    font-size: 1.3rem;
    background: var(--green-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.contact-details p {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 0.8rem;
}

/* Partnership Section */
.partnership-section {
    background: var(--purple-gradient);
    padding: var(--section-padding) 2rem;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.partnership-section-content {
    max-width: var(--content-max-width);
    margin: 0 auto;
    position: relative;
    z-index: 2;
    padding-bottom: 2rem;
}

.partnership-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/pattern-bg.png') repeat;
    opacity: 0.05;
    animation: moveBackground 25s linear infinite;
}

.partnership-section h2 {
    color: var(--white);
    text-align: center;
    font-size: var(--font-size-h2);
    margin-bottom: 4rem;
    font-weight: 800;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.partnership-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: var(--content-max-width);
    margin: 0 auto 3rem;
    position: relative;
    z-index: 1;
    padding: 1.5rem;
}

.partnership-item {
    background: rgba(255, 255, 255, 0.98);
    padding: 1.8rem 1.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.partnership-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--green-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.partnership-item:hover::after {
    transform: scaleX(1);
}

.partnership-item i {
    font-size: 2rem;
    background: var(--purple-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.2rem;
    transition: all 0.4s ease;
}

.partnership-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.95) 100%);
}

.partnership-item:hover i {
    transform: scale(1.15) rotate(5deg);
}

.partnership-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-purple);
    font-weight: 700;
    position: relative;
    padding-bottom: 0.8rem;
}

.partnership-item h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--purple-light);
    border-radius: 2px;
}

.partnership-description {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.partnership-item p {
    font-size: 1rem;
    line-height: 1.5;
    color: var(--gray-medium);
    margin-bottom: 0.8rem;
}

.partnership-item small {
    display: block;
    color: var(--gray-medium);
    font-size: 0.9rem;
    margin-top: 0.8rem;
    font-style: italic;
    opacity: 0.8;
    line-height: 1.4;
}

.registration-info {
    margin-top: 3rem;
    padding: 2rem;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.registration-text {
    color: var(--white);
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
    opacity: 0.9;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    font-weight: 500;
}

/* Buttons */
.btn-donate {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--green-gradient);
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: var(--font-size-base);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: none;
    text-align: center;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    margin-top: 1rem;
}

.btn-donate::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: all 0.6s ease;
}

.btn-donate:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.btn-donate:hover::before {
    left: 100%;
}

/* Animation Classes */
.animate-in {
    animation: fadeInUp 1s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Adjustments */
@media (max-width: 1400px) {
    :root {
        --content-max-width: 1200px;
        --section-padding: 6rem;
    }

    .cause-card, .method-card, .contact-details, .partnership-item {
        padding: 1.8rem 1.2rem;
    }
}

@media (max-width: 1200px) {
    :root {
        --content-max-width: 1000px;
        --section-padding: 5rem;
    }

    .donation-causes, .donation-methods, .contact-grid, .partnership-options {
        flex-wrap: wrap;
        justify-content: center;
    }

    .cause-card, .method-card, .contact-details, .partnership-item {
        max-width: none;
        flex: 1 1 calc(33.333% - 1rem);
    }

    .partnership-options {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }

    .partnership-item {
        padding: 1.5rem;
    }

    .partnership-item i {
        margin-bottom: 1.5rem;
    }

    .partnership-item h3 {
        font-size: 1.4rem;
        margin-bottom: 1.2rem;
    }
}

@media (max-width: 991px) {
    .cause-card, .method-card, .contact-details, .partnership-item {
        flex: 1 1 calc(50% - 1rem);
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: var(--section-padding-mobile);
    }

    .donation-section,
    .donation-methods-section,
    .contact-info,
    .partnership-section {
        padding: var(--section-padding-mobile) 1.5rem;
    }

    .donation-section h1 {
        font-size: calc(var(--font-size-h1) * 0.8);
    }

    .cause-card,
    .method-card,
    .contact-details,
    .partnership-item {
        flex: 1 1 100%;
        max-width: 400px;
    }

    .section-actions {
        flex-direction: column;
        gap: 1rem;
        padding: 0 1rem;
    }

    .btn-action {
        width: 100%;
        justify-content: center;
    }

    .partnership-options {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
        padding: 1rem;
    }

    .partnership-item {
        padding: 1.5rem;
    }

    .partnership-item p {
        font-size: 0.95rem;
    }

    .registration-info {
        margin-top: 2rem;
        padding: 1.5rem;
    }

    .registration-text {
        font-size: 1rem;
    }

    .collaboration-ways ul {
        grid-template-columns: 1fr;
    }

    .collaboration-ways li {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .donation-section {
        margin: 1rem;
    }

    .donation-section h1 {
        font-size: calc(var(--font-size-h1) * 0.6);
    }

    .cause-card,
    .method-card,
    .contact-details,
    .partnership-item {
        min-width: 240px;
        flex: 0 0 240px;
        padding: 2rem;
    }

    .btn-donate {
        width: 100%;
        padding: 1rem;
    }

    .contact-details {
        padding: 1.8rem;
    }
}

/* Remove scroll buttons */
.scroll-buttons {
    display: none;
}

/* Section Action Buttons */
.section-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    margin: 3rem auto;
    padding: 0 1rem;
    max-width: 800px;
}

.btn-action {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: var(--white);
    color: var(--primary-purple);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    border: 2px solid var(--primary-purple);
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
    min-width: 160px;
    max-width: 200px;
}

.btn-action i {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

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

.btn-action:hover i {
    transform: translateX(3px);
}

.btn-action.btn-donate {
    background: var(--green-gradient);
    color: var(--white);
    border: none;
}

.btn-action.btn-donate:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(57, 181, 74, 0.3);
}

.btn-action.btn-fundraise {
    background: var(--purple-gradient);
    color: var(--white);
    border: none;
}

.btn-action.btn-fundraise:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(75, 46, 131, 0.3);
}

@media (max-width: 991px) {
    .section-actions {
        overflow-x: auto;
        justify-content: flex-start;
        padding: 0.5rem;
        gap: 0.8rem;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }

    .btn-action {
        min-width: 140px;
        padding: 0.8rem 1.2rem;
    }
}

@media (max-width: 768px) {
    .section-actions {
        gap: 0.6rem;
    }

    .btn-action {
        min-width: 130px;
        padding: 0.7rem 1rem;
        font-size: 0.9rem;
    }
}

.collaboration-ways {
    margin-top: 1.5rem;
    text-align: left;
}

.collaboration-ways ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.8rem;
}

.collaboration-ways li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--gray-medium);
    font-size: 0.95rem;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.5);
}

.collaboration-ways li:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: translateX(5px);
}

.collaboration-ways li i {
    font-size: 1rem;
    margin: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--purple-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

@media (max-width: 768px) {
    .collaboration-ways ul {
        grid-template-columns: 1fr;
    }

    .collaboration-ways li {
        font-size: 0.9rem;
    }
}

.donate-now-action {
    display: inline-flex;
    margin-left: 1rem;
}

.btn-action.btn-large {
    font-size: 1.2rem;
    padding: 1.2rem 3rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
}

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

.btn-action.btn-large:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(57, 181, 74, 0.4);
}

@media (max-width: 991px) {
    .section-actions {
        overflow-x: auto;
        justify-content: flex-start;
        padding: 0.5rem 1rem;
        margin-top: 2rem;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }

    .section-actions::-webkit-scrollbar {
        display: none;
    }

    .btn-action {
        padding: 0.8rem 1.2rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .section-actions {
        gap: 0.8rem;
        padding: 0.5rem;
    }

    .btn-action {
        padding: 0.7rem 1rem;
    }

    .donate-now-action {
        margin-left: 0.8rem;
    }
}