/* ===== CSS RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

/* ===== CSS VARIABLES ===== */
:root {
    /* Colors */
    --primary-color: #2E86AB;
    --primary-dark: #1E5F7A;
    --primary-light: #4A9BC7;
    --secondary-color: #F24236;
    --secondary-dark: #D63027;
    --secondary-light: #F56C63;
    --accent-color: #F6AE2D;
    --success-color: #28A745;
    --warning-color: #FFC107;
    --danger-color: #DC3545;
    
    /* Neutrals */
    --white: #FFFFFF;
    --light-gray: #F8F9FA;
    --gray: #6C757D;
    --dark-gray: #495057;
    --black: #212529;
    
    /* Typography */
    --font-family-primary: 'Open Sans', sans-serif;
    --font-family-heading: 'Montserrat', sans-serif;
    
    /* Font Sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 4rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Border Radius */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-full: 9999px;
    
    /* 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);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-4xl) 0;
}

.section__header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section__title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--black);
    margin-bottom: var(--spacing-md);
}

.section__subtitle {
    font-size: var(--font-size-xl);
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--border-radius-md);
    font-family: var(--font-family-heading);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn--primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn--secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn--secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.btn--large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn--full {
    width: 100%;
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: var(--z-fixed);
    transition: all var(--transition-normal);
}

.nav {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.nav__logo i {
    font-size: var(--font-size-2xl);
    color: var(--secondary-color);
}

.nav__menu {
    display: flex;
    align-items: center;
}

.nav__list {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav__link {
    font-weight: 500;
    color: var(--dark-gray);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

.nav__link:hover,
.nav__link.active-link {
    color: var(--primary-color);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-normal);
}

.nav__link:hover::after,
.nav__link.active-link::after {
    width: 100%;
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav__donate {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.nav__toggle,
.nav__close {
    display: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--dark-gray);
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--black);
}

.hero__video-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero__video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
    z-index: 1;
}

.hero__video-fallback {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 2;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.hero__video-fallback.show {
    opacity: 1;
}

.hero__video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(46, 134, 171, 0.7) 0%,
        rgba(46, 134, 171, 0.5) 50%,
        rgba(242, 66, 54, 0.6) 100%
    );
    z-index: 3;
}

.hero__container {
    position: relative;
    z-index: 4;
    text-align: center;
    color: var(--white);
}

.hero__content {
    max-width: 800px;
    margin: 0 auto;
}

.hero__title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-6xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    color: var(--white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.hero__title--accent {
    color: var(--accent-color);
    position: relative;
}

.hero__title--accent::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--secondary-color));
    border-radius: var(--border-radius-sm);
}

.hero__description {
    font-size: var(--font-size-xl);
    line-height: 1.6;
    margin-bottom: var(--spacing-2xl);
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero__actions {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
    justify-content: center;
    flex-wrap: wrap;
}

.btn--hero {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 2px solid transparent;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn--hero.btn--primary {
    background: linear-gradient(135deg, var(--secondary-color), #e63946);
    color: var(--white);
    animation: pulse-glow 2s infinite;
}

.btn--hero.btn--secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn--hero:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.hero__stats {
    display: flex;
    gap: var(--spacing-3xl);
    justify-content: center;
    flex-wrap: wrap;
}

.hero__stat {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    min-width: 150px;
}

.hero__stat-number {
    display: block;
    font-family: var(--font-family-heading);
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: var(--spacing-xs);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero__stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Video Sound Toggle */
.video-sound-toggle {
    position: relative;
}

.video-sound-toggle i {
    margin-right: var(--spacing-sm);
}

/* ===== MISSION SECTION ===== */
.mission {
    background: var(--white);
}

.mission__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.mission__card {
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--light-gray);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.mission__card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.mission__card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.mission__icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: var(--white);
    font-size: var(--font-size-2xl);
}

.mission__title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--black);
}

.mission__description {
    color: var(--gray);
    line-height: 1.7;
}

/* ===== IMPACT SECTION ===== */
.impact {
    background: var(--light-gray);
}

.impact__gallery {
    display: grid;
    gap: var(--spacing-2xl);
}

.impact__item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.impact__item:nth-child(even) {
    direction: rtl;
}

.impact__item:nth-child(even) .impact__content {
    direction: ltr;
}

.impact__image {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.impact__content {
    padding: var(--spacing-2xl);
}

.impact__title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--black);
}

.impact__description {
    color: var(--gray);
    line-height: 1.7;
}

/* ===== MISSIONS SECTION ===== */
.missions {
    background: var(--white);
}

.mission__featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: var(--spacing-3xl);
    border-radius: var(--border-radius-xl);
    position: relative;
    overflow: hidden;
}

.mission__featured::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.mission__badge {
    display: inline-block;
    background: var(--secondary-color);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.mission__featured-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.mission__featured-description {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
}

.mission__goals {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.mission__goal {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.mission__funding {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-2xl);
}

.funding__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.funding__label {
    font-weight: 600;
}

.funding__amount {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.progress__bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress__fill {
    height: 100%;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    border-radius: var(--border-radius-full);
    transition: width var(--transition-slow);
}

.progress__stats {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.mission__featured-image {
    position: relative;
}

.mission__img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
}

/* ===== HELP SECTION ===== */
.help {
    background: var(--light-gray);
}

.help__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
}

.help__card {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.help__card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.help__card--featured {
    background: linear-gradient(135deg, var(--white), var(--light-gray));
    border: 3px solid var(--primary-color);
    transform: scale(1.05);
}

.help__card--featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.help__icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: var(--white);
    font-size: var(--font-size-2xl);
}

.help__title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--black);
}

.help__description {
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.help__amounts {
    margin-bottom: var(--spacing-lg);
}

.amount__option {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid #eee;
}

.amount__option:last-child {
    border-bottom: none;
}

.amount__value {
    font-family: var(--font-family-heading);
    font-weight: 600;
    color: var(--primary-color);
}

.amount__impact {
    font-size: var(--font-size-sm);
    color: var(--gray);
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--white);
}

.about__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.about__content .section__header {
    text-align: left;
    margin-bottom: var(--spacing-2xl);
}

.about__text {
    margin-bottom: var(--spacing-2xl);
}

.about__text p {
    margin-bottom: var(--spacing-lg);
    color: var(--gray);
    line-height: 1.7;
}

.about__leadership {
    margin-bottom: var(--spacing-2xl);
}

.about__leadership-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--black);
}

.leadership__card {
    background: var(--light-gray);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--primary-color);
}

.leadership__name {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--black);
    margin-bottom: var(--spacing-xs);
}

.leadership__title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.leadership__description {
    color: var(--gray);
    line-height: 1.6;
}

.about__credentials {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.credential {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--gray);
    font-size: var(--font-size-sm);
}

.credential i {
    color: var(--primary-color);
}

.about__image {
    position: relative;
}

.about__img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
}

/* ===== DONATE SECTION ===== */
.donate {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
}

.donate .section__title,
.donate .section__subtitle {
    color: var(--white);
}

.donate__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
}

.donate__form-container {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    backdrop-filter: blur(10px);
}

.donate__amounts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.amount__btn {
    padding: var(--spacing-md);
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: transparent;
    color: var(--white);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.amount__btn:hover,
.amount__btn.active {
    background: var(--white);
    color: var(--primary-color);
    border-color: var(--white);
}

.amount__btn--popular {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    position: relative;
}

.amount__btn--popular::before {
    content: 'Popular';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-color);
    color: var(--black);
    padding: 2px 8px;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 700;
}

.donate__form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form__group {
    display: flex;
    flex-direction: column;
}

.form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.form__label {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--white);
}

.form__input,
.form__select,
.form__textarea {
    padding: var(--spacing-md);
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-base);
    transition: all var(--transition-normal);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--white);
    background: rgba(255, 255, 255, 0.2);
}

.form__input::placeholder,
.form__textarea::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.form__input-group {
    position: relative;
}

.form__input-prefix {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.7);
    font-weight: 600;
}

.form__input-group .form__input {
    padding-left: calc(var(--spacing-md) + 20px);
}

.donate__security {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
}

.donate__impact {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    backdrop-filter: blur(10px);
}

.donate__impact-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--white);
}

.impact__examples {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.impact__example {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
}

.impact__amount {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--accent-color);
    min-width: 80px;
}

.impact__description {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.donate__bank-info {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
}

.donate__bank-info h4 {
    font-family: var(--font-family-heading);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.bank__details p {
    margin-bottom: var(--spacing-xs);
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-sm);
}

/* ===== CONTACT SECTION ===== */
.contact {
    background: var(--light-gray);
}

.contact__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.contact__item {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.contact__icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.contact__title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--black);
}

.contact__text {
    color: var(--gray);
    line-height: 1.6;
}

.contact__form {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact__form .form__input,
.contact__form .form__select,
.contact__form .form__textarea {
    background: var(--light-gray);
    border: 2px solid transparent;
    color: var(--black);
}

.contact__form .form__input:focus,
.contact__form .form__select:focus,
.contact__form .form__textarea:focus {
    border-color: var(--primary-color);
    background: var(--white);
}

.contact__form .form__label {
    color: var(--black);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--black);
    color: var(--white);
    padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer__container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer__logo i {
    font-size: var(--font-size-2xl);
    color: var(--secondary-color);
}

.footer__description {
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.footer__social {
    display: flex;
    gap: var(--spacing-md);
}

.footer__social-link {
    width: 40px;
    height: 40px;
    background: var(--dark-gray);
    border-radius: var(--border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.footer__social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer__title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--white);
}

.footer__links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__link {
    color: var(--gray);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer__contact p {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--gray);
}

.footer__contact i {
    color: var(--primary-color);
    width: 20px;
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--dark-gray);
}

.footer__bottom-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.footer__copyright {
    color: var(--gray);
}

.footer__legal {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.footer__charity {
    color: var(--primary-color);
    font-weight: 600;
    font-size: var(--font-size-sm);
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border: none;
    border-radius: var(--border-radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: var(--z-fixed);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* ===== RESPONSIVE DESIGN ===== */
@media screen and (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .about__container,
    .donate__content,
    .contact__container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .hero__title {
        font-size: var(--font-size-5xl);
    }
    
    .hero__description {
        font-size: var(--font-size-lg);
    }
    
    .hero__stats {
        gap: var(--spacing-2xl);
    }
    
    .mission__featured {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .impact__item {
        grid-template-columns: 1fr;
    }
    
    .impact__item:nth-child(even) {
        direction: ltr;
    }
    
    .hero__actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero__stats {
        justify-content: center;
    }
}

@media screen and (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        transition: right var(--transition-normal);
        z-index: var(--z-modal);
    }
    
    .nav__menu.show-menu {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .nav__link {
        font-size: var(--font-size-lg);
    }
    
    .nav__close {
        display: block;
        position: absolute;
        top: 30px;
        right: 30px;
        font-size: var(--font-size-2xl);
    }
    
    .nav__toggle {
        display: block;
    }
    
    .nav__donate {
        display: none;
    }
    
    .section {
        padding: var(--spacing-3xl) 0;
    }
    
    .section__title {
        font-size: var(--font-size-3xl);
    }
    
    .hero {
        min-height: 80vh;
    }
    
    .hero__title {
        font-size: var(--font-size-4xl);
    }
    
    .hero__description {
        font-size: var(--font-size-base);
    }
    
    .hero__actions {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .btn--hero {
        width: 100%;
        max-width: 300px;
    }
    
    .hero__stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .mission__goals {
        justify-content: center;
    }
    
    .help__grid {
        grid-template-columns: 1fr;
    }
    
    .help__card--featured {
        transform: none;
    }
    
    .help__card--featured:hover {
        transform: translateY(-10px);
    }
    
    .donate__amounts {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form__row {
        grid-template-columns: 1fr;
    }
    
    .footer__bottom {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .footer__bottom-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media screen and (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero__title {
        font-size: var(--font-size-3xl);
    }
    
    .section__title {
        font-size: var(--font-size-2xl);
    }
    
    .btn--large {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-base);
    }
    
    .hero__actions {
        gap: var(--spacing-md);
    }
    
    .hero {
        min-height: 70vh;
    }
    
    .hero__title {
        font-size: var(--font-size-3xl);
    }
    
    .hero__description {
        font-size: var(--font-size-sm);
    }
    
    .hero__stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .hero__stat {
        min-width: auto;
    }
    
    .mission__featured {
        padding: var(--spacing-xl);
    }
    
    .donate__amounts {
        grid-template-columns: 1fr;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.8s ease-out;
}

.animate-fade-in-right {
    animation: fadeInRight 0.8s ease-out;
}

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

/* Focus styles for keyboard navigation */
.btn:focus,
.nav__link:focus,
.form__input:focus,
.form__select:focus,
.form__textarea:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000080;
        --secondary-color: #800000;
        --gray: #404040;
        --light-gray: #f0f0f0;
    }
}