:root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --secondary: #3f37c9;
    --dark: #1a1a2e;
    --light: #f8f9fa;
    --gray: #6c757d;
    --success: #4cc9f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

html {
    scroll-behavior: smooth;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo h1 {
    color: #333;
    font-size: 1.8rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links li a {
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links li a:hover, .nav-links li a.active {
    color: #4a6bff;
}

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

.auth-buttons button {
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

li {
    list-style: none;
}

.login-btn {
    background: transparent;
    border: 1px solid #ddd;
}

.login-btn:hover {
    border-color: #4a6bff;
    color: #4a6bff;
}

.join-btn {
    background: #4a6bff;
    color: white;
    border: none;
}

.join-btn:hover {
    background: #3a5bef;
}

.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.hero-section {
      position: relative;
    overflow: hidden;
    padding: 140px 20px;
    text-align: center;
    background-size: cover;
    background-position: center;
}

.hero-section::before {
 content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(74, 107, 255, 0.1), rgba(74, 107, 255, 0.05));
}
.hero-section::after {
  content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: linear-gradient(transparent, #f9f9f9);
    z-index: 1;
}



.hero-section h1 {
    font-size: 3.2rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--dark), var(--primary));
    -webkit-background-clip: text;
    background-clip: text;
    line-height: 1.2;
        animation: fadeInUp 0.8s ease-out 0.2s both;

}



.hero-section p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 2.5rem;
    color: var(--gray);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}
@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}
.hero-cta {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.hero-cta .btn {
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 14px rgba(67, 97, 238, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(67, 97, 238, 0.4);
}

.btn-secondary {
    border: 1px solid rgba(0, 0, 0, 0.1);
    background: white;
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.our-story {
    margin: 6rem 0;
    position: relative;
}

.our-story h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.our-story h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), transparent);
    border-radius: 3px;
}

.story-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.story-text {
    width: 100%;
    max-width: 800px;
    text-align: center;
}

.story-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
}

.story-image {
    width: 100%;
    max-width: 600px;
    border-radius: 12px;
    overflow: hidden;
}

.how-it-works {
    background-color: white;
    padding: 6rem 0;
    margin: 6rem 0;
    position: relative;
}

.how-it-works::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiPjxkZWZzPjxwYXR0ZXJuIGlkPSJwYXR0ZXJuIiB3aWR0aD0iNDAiIGhlaWdodD0iNDAiIHBhdHRlcm5Vbml0cz0idXNlclNwYWNlT25Vc2UiIHBhdHRlcm5UcmFuc2Zvcm09InJvdGF0ZSg0NSkiPjxyZWN0IHdpZHRoPSIyMCIgaGVpZ2h0PSIyMCIgZmlsbD0icmdiYSgyNTUsMjU1LDI1NSwwLjEpIi8+PC9wYXR0ZXJuPjwvZGVmcz48cmVjdCB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiBmaWxsPSJ1cmwoI3BhdHRlcm4pIi8+PC9zdmc+') repeat;
    opacity: 0.5;
    z-index: 0;
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 5rem;
    position: relative;
    z-index: 1;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.step {
    padding: 2.5rem;
    border-radius: 16px;
    background: white;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary), var(--success));
}

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

.step-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 1.8rem;
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
}

.step h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--dark);
}

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

.impact-stats {
    margin: 6rem 0;
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    position: relative;
    overflow: hidden;
}

.impact-stats::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
    animation: pulse 8s infinite linear;
    z-index: 0;
}

@keyframes pulse {
    0% { transform: scale(0.8); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 0.2; }
    100% { transform: scale(0.8); opacity: 0.5; }
}

.impact-stats h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 5rem;
    position: relative;
    z-index: 1;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.stat-item {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, white, #e0e0e0);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.stat-label {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 0.5px;
}

.team-section {
    padding: 4rem 2rem;
    text-align: center;
    background: #f9f9f9;
}

.team-section h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #333;
}

.team-members {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.member {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    max-width: 300px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.member:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.member img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: 1rem;
}

.member h3 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
    color: #333;
}

.member p {
    font-size: 0.95rem;
    color: #777;
}

footer {
    background: #2c3e50;
    color: white;
    padding: 5rem 0 0;
    position: relative;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-section {
    padding: 0 1rem;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: #4a6bff;
    position: relative;
    padding-bottom: 0.8rem;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 2px;
    background: #4a6bff;
}

.footer-section p, .footer-section a {
    color: #ecf0f1;
    line-height: 1.8;
    transition: all 0.3s;
}

.footer-section a {
    text-decoration: none;
    display: inline-block;
    margin-bottom: 0.8rem;
}

.footer-section a:hover {
    color: #4a6bff;
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.auth-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    top: 0; 
    left: 0;
    width: 100%; 
    height: 100%;
    background-color: rgba(0, 0, 0, 0.2);
}

.auth-content {
    background: #ffffff;
    width: 450px;
    margin: 10% auto;
    padding: 30px;
    border-radius: 12px;
    position: relative;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: 1px solid #e0e0e0;
}

.close-auth {
    position: absolute;
    top: 15px; 
    right: 20px;
    font-size: 24px;
    cursor: pointer;
    color: #999;
}

.close-auth:hover {
    color: #666;
}

.auth-tabs {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
    border-bottom: 1px solid #e0e0e0;
}

.tab-btn {
    background: none;
    border: none;
    font-size: 16px;
    padding: 12px 0;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    color: #777;
    width: 100%;
    text-align: center;
}

.tab-btn:hover {
    color: #313233;
}

.tab-btn.active {
    border-bottom: 3px solid #625e5e;
    color: #000000;
    font-weight: 500;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

input {
    padding: 12px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 15px;
    background: #f9f9f9;
    color: #333;
    width: 100%;
    box-sizing: border-box;
}

input:focus {
    border-color: #3d3d3d;
    outline: none;
    background: #fff;
}

button[type="submit"] {
    background: #404142;
    color: #fff;
    border: none;
    padding: 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    margin-top: 10px;
}

button[type="submit"]:hover {
    background: #292929;
}