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

:root {
    --color-primary: #4A90E2;
    --color-secondary: #F5A623;
    --color-accent: #7ED321;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg: #FFFFFF;
    --color-bg-alt: #F9FAFB;
    --color-border: #E5E7EB;
    --spacing-unit: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-align: justify;
}

/* Utility Classes */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 2);
}

.content-wrapper {
    max-width: 960px;
    margin: 0 auto;
}

.wide-content {
    max-width: 1152px;
    margin: 0 auto;
}

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

.hidden {
    display: none !important;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 2);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-unit));
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
}

.logo-text {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
}

.nav-links {
    display: flex;
    gap: calc(var(--spacing-unit) * 3);
}

.nav-links a {
    color: var(--color-text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.desktop-nav {
    display: none;
}

.mobile-menu-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: calc(var(--spacing-unit));
    color: var(--color-text-light);
}

.menu-icon,
.close-icon {
    width: 24px;
    height: 24px;
}

.mobile-nav {
    margin-top: calc(var(--spacing-unit) * 2);
    padding-bottom: calc(var(--spacing-unit) * 2);
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 1.5);
}

.mobile-link {
    color: var(--color-text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

.mobile-link:hover {
    color: var(--color-primary);
}

/* Hero Section */
.hero {
    padding-top: calc(var(--spacing-unit) * 10);
    background: linear-gradient(to bottom right, #EBF5FF, #DBEAFE);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero .container {
    width: 100%;
}

.hero-content {
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
    padding: calc(var(--spacing-unit) * 6) 0;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 3);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 4);
    align-items: center;
    justify-content: center;
    width: 100%;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 4);
    border-radius: 9999px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #3A7BC8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

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

.btn-secondary:hover {
    background-color: #E09615;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(245, 166, 35, 0.3);
}

.btn-accent {
    background-color: var(--color-accent);
    color: white;
}

.btn-accent:hover {
    background-color: #6BC219;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(126, 211, 33, 0.3);
}

.btn-block {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: calc(var(--spacing-unit));
}

.btn-icon {
    width: 20px;
    height: 20px;
}

/* Sections */
.section {
    padding: calc(var(--spacing-unit) * 8) 0;
}

.section-alt {
    background-color: var(--color-bg-alt);
}

.section-cta {
    background-color: var(--color-primary);
    color: white;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 4);
    text-align: center;
}

.section-title-white {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.section-subtitle-white {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: calc(var(--spacing-unit) * 6);
}

.section-header {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 6);
}

.section-icon {
    width: 64px;
    height: 64px;
    color: var(--color-primary);
    margin: 0 auto calc(var(--spacing-unit) * 2);
}

/* Founder Card */
.founder-card {
    background-color: var(--color-bg-alt);
    border-radius: calc(var(--spacing-unit));
    padding: calc(var(--spacing-unit) * 3);
    margin-bottom: calc(var(--spacing-unit) * 6);
}

.founder-content {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 4);
    align-items: stretch;
}

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

.founder-portrait {
    width: 100%;
    max-width: 320px;
    height: auto;
    border-radius: calc(var(--spacing-unit));
    object-fit: cover;
    display: block;
    margin: 0 auto calc(var(--spacing-unit) * 2);
}

.image-placeholder {
    background-color: #D1D5DB;
    border-radius: calc(var(--spacing-unit));
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.placeholder-icon {
    width: 96px;
    height: 96px;
    color: #9CA3AF;
}

.founder-name {
     font-weight: 600;
     color: var(--color-text);
     margin-bottom: calc(var(--spacing-unit) * 0.5);
 }
 
 .founder-role {
     font-size: 0.875rem;
     color: var(--color-text-light);
 }
 
/* Events gallery */
.events-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: calc(var(--spacing-unit) * 2);
    margin-top: calc(var(--spacing-unit) * 4);
}

.event-item {
    overflow: hidden;
    border-radius: calc(var(--spacing-unit));
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    background: #fff;
}

.event-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

@media (min-width: 768px) {
    .founder-content {
        flex-direction: row;
        gap: calc(var(--spacing-unit) * 6);
        align-items: flex-start;
    }

    .founder-image {
        width: 40%;
        text-align: left;
    }

    .founder-portrait {
        margin: 0 0 calc(var(--spacing-unit) * 2) 0;
        max-width: 100%;
        height: auto;
    }

    .founder-message {
        width: 60%;
    }

    .events-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: calc(var(--spacing-unit) * 3);
    }
}
 
/* Registration Box */
.registration-box {
    background-color: #EBF5FF;
    border-left: 4px solid var(--color-primary);
    border-radius: calc(var(--spacing-unit));
    padding: calc(var(--spacing-unit) * 3);
}

.registration-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.registration-grid {
    display: grid;
    gap: calc(var(--spacing-unit) * 2);
}

.reg-label {
    font-weight: 600;
    color: var(--color-text);
}

.reg-value {
    font-size: 1.125rem;
    color: var(--color-text-light);
}

/* Mission Grid */
.mission-grid {
    display: grid;
    gap: calc(var(--spacing-unit) * 4);
    margin-bottom: calc(var(--spacing-unit) * 6);
}

.mission-card {
    background-color: white;
    padding: calc(var(--spacing-unit) * 4);
    border-radius: calc(var(--spacing-unit));
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.card-text {
    color: var(--color-text-light);
    line-height: 1.8;
    text-align: justify;
}

/* Focus Areas */
.focus-areas {
    background-color: white;
    padding: calc(var(--spacing-unit) * 4);
    border-radius: calc(var(--spacing-unit));
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.focus-grid {
    display: grid;
    gap: calc(var(--spacing-unit) * 3);
}

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

.focus-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto calc(var(--spacing-unit) * 2);
}

.focus-icon svg {
    width: 32px;
    height: 32px;
}

.focus-icon-blue {
    background-color: #DBEAFE;
    color: var(--color-primary);
}

.focus-icon-yellow {
    background-color: #FEF3C7;
    color: #D97706;
}

.focus-icon-green {
    background-color: #D1FAE5;
    color: #059669;
}

.focus-title {
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit));
}

.focus-text {
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-align: justify;
}

/* Founders Grid - Two Columns */
.founders-grid-two {
    display: grid;
    gap: calc(var(--spacing-unit) * 6);
    grid-template-columns: 1fr;
}

.founder-item {
    background-color: white;
    border-radius: calc(var(--spacing-unit) * 2);
    padding: calc(var(--spacing-unit) * 4);
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.founder-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.founder-photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto calc(var(--spacing-unit) * 3);
    border: 4px solid var(--color-primary);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.2);
}

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

.founder-item-name {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit));
}

.founder-item-role {
    font-size: 1rem;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.founder-bio {
    color: var(--color-text-light);
    line-height: 1.8;
    text-align: justify;
}

/* Programs List */
.programs-list {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 3);
}

.program-card {
    background-color: white;
    padding: calc(var(--spacing-unit) * 3);
    border-radius: calc(var(--spacing-unit));
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.program-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}

.program-text {
    color: var(--color-text-light);
    line-height: 1.8;
    text-align: justify;
}

/* CTA Grid */
.cta-grid {
    display: grid;
    gap: calc(var(--spacing-unit) * 4);
}

.cta-card {
    background-color: white;
    color: var(--color-text);
    padding: calc(var(--spacing-unit) * 4);
    border-radius: calc(var(--spacing-unit));
    text-align: center;
}

.cta-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    margin: 0 auto calc(var(--spacing-unit) * 2);
}

.cta-icon-yellow {
    color: #D97706;
}

.cta-icon-green {
    color: #059669;
}

.cta-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}

.cta-text {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: calc(var(--spacing-unit) * 2);
    text-align: justify;
}

/* Contact Section */
.contact-grid {
    display: grid;
    gap: calc(var(--spacing-unit) * 4);
}

.contact-subtitle {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 3);
}

/* Forms */
.contact-form,
.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 2);
}

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

.form-label {
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit));
}

.form-input,
.form-textarea,
.newsletter-input {
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 2);
    border: 1px solid var(--color-border);
    border-radius: calc(var(--spacing-unit));
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-input:focus,
.form-textarea:focus,
.newsletter-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Contact Info */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 3);
}

.contact-item {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
}

.contact-icon {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 4px;
}

.contact-label {
    font-weight: 600;
    color: var(--color-text);
}

.contact-value {
    color: var(--color-text-light);
}

/* Newsletter Box */
.newsletter-box {
    background-color: var(--color-bg-alt);
    padding: calc(var(--spacing-unit) * 3);
    border-radius: calc(var(--spacing-unit));
    margin-top: calc(var(--spacing-unit) * 4);
}

.newsletter-title {
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.newsletter-text {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.newsletter-form {
    flex-direction: row;
    gap: calc(var(--spacing-unit));
}

.newsletter-input {
    flex: 1;
}

/* Footer */
.footer {
    background-color: #1F2937;
    color: white;
    padding: calc(var(--spacing-unit) * 6) 0;
}

.footer-grid {
    display: grid;
    gap: calc(var(--spacing-unit) * 4);
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-unit));
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.footer-icon {
    width: 32px;
    height: 32px;
    color: #60A5FA;
}

.footer-title {
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-text {
    font-size: 0.875rem;
    color: #D1D5DB;
    text-align: justify;
}

.footer-heading {
    font-weight: 700;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit));
}

.footer-links a {
    color: #D1D5DB;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-reg {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit));
    font-size: 0.875rem;
    color: #D1D5DB;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: calc(var(--spacing-unit) * 4);
    text-align: center;
    color: #D1D5DB;
    font-size: 0.875rem;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: calc(var(--spacing-unit) * 4);
    right: calc(var(--spacing-unit) * 4);
    background-color: var(--color-primary);
    color: white;
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top:hover {
    background-color: #3A7BC8;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* Donation Accounts Section */
.accounts-grid {
    display: grid;
    gap: calc(var(--spacing-unit) * 3);
    margin-top: calc(var(--spacing-unit) * 4);
}

.account-card {
    background: var(--color-bg);
    border-radius: calc(var(--spacing-unit));
    padding: calc(var(--spacing-unit) * 3);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.account-title {
    color: var(--color-primary);
    margin-bottom: calc(var(--spacing-unit) * 2);
    font-size: 1.25rem;
}

.account-details p {
    margin-bottom: calc(var(--spacing-unit));
}

.account-number {
    font-family: monospace;
    font-size: 1.1em;
    color: var(--color-text);
    background: var(--color-bg-alt);
    padding: 2px 6px;
    border-radius: 4px;
}

.copy-btn {
    margin-top: calc(var(--spacing-unit) * 2);
}

.bank-address {
    text-align: center;
    margin-top: calc(var(--spacing-unit) * 4);
    padding: calc(var(--spacing-unit) * 2);
    background: var(--color-bg-alt);
    border-radius: calc(var(--spacing-unit));
}

@media (min-width: 768px) {
    .accounts-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767px) {
    .account-card {
        padding: calc(var(--spacing-unit) * 2);
    }
}

/* Responsive Design */
@media (min-width: 640px) {
    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }

    .hero-buttons {
        flex-direction: row;
    }

    .registration-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .newsletter-form {
        flex-direction: row;
    }

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

@media (min-width: 768px) {
    :root {
        font-size: 18px;
    }

    .desktop-nav {
        display: flex;
    }

    .mobile-menu-btn,
    .mobile-nav {
        display: none !important;
    }

    .logo-text {
        font-size: 1.25rem;
    }

    .hero-content {
        padding: calc(var(--spacing-unit) * 16) 0;
    }

    .hero-title {
        font-size: 3.75rem;
    }

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

    .section {
        padding: calc(var(--spacing-unit) * 12) 0;
    }

    .section-title,
    .section-title-white {
        font-size: 2.5rem;
    }

    .founder-content {
        flex-direction: row;
        align-items: flex-start;
    }

    .founder-image {
        flex: 0 0 33.333%;
    }

    .founder-message {
        flex: 1;
    }

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

    .focus-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .founders-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .cta-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Print Styles */
@media print {
    .header,
    .back-to-top,
    .hero-buttons,
    .cta-grid,
    .contact-form,
    .newsletter-form {
        display: none;
    }

    body {
        font-size: 12pt;
    }

    .section {
        page-break-inside: avoid;
    }
}

/* Contact section — mobile optimizations */
@media (max-width: 639px) {
    #contact .contact-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: calc(var(--spacing-unit) * 4);
        align-items: start;
    }

    .contact-form {
        padding: 0;
    }

    .contact-form .form-group {
        margin-bottom: calc(var(--spacing-unit) * 2);
    }

    .form-input,
    .form-textarea,
    .newsletter-input {
        width: 100%;
        box-sizing: border-box;
        font-size: 1rem;
        padding: calc(var(--spacing-unit) * 1.25);
        border-radius: calc(var(--spacing-unit) * 0.5);
    }

    .form-textarea {
        min-height: 160px;
        resize: vertical;
    }

    .contact-form .btn,
    .newsletter-form .btn {
        width: 100%;
        padding: calc(var(--spacing-unit) * 1.25);
        font-size: 1rem;
    }

    .contact-info {
        display: grid;
        grid-template-columns: 1fr;
        gap: calc(var(--spacing-unit) * 2);
    }

    .contact-item {
        display: flex;
        gap: calc(var(--spacing-unit) * 2);
        align-items: center;
    }

    .contact-icon {
        min-width: 40px;
        min-height: 40px;
        flex-shrink: 0;
    }

    .newsletter-form {
        display: flex;
        flex-direction: column;
        gap: calc(var(--spacing-unit) * 2);
        align-items: stretch;
    }

    /* Improve spacing inside section on small screens */
    .section {
        padding: calc(var(--spacing-unit) * 6) 0;
    }
}