/* Theme Variables */
:root {
    --primary-violet: #2196F3;
    --secondary-purple: #64B5F6;
    --dark-grey: #333333;
    --light-grey: #F5F5F5;
    --black: #000000;
    --background: var(--light-grey);
    --text: var(--dark-grey);
    --card-bg: white;
    --nav-bg: var(--black);
    --nav-text: white;
    --hero-overlay: linear-gradient(135deg, rgba(33, 150, 243, 0.9), rgba(100, 181, 246, 0.9));
    --feature-bg: white;
    --benefit-bg: var(--dark-grey);
    --benefit-card: rgba(255, 255, 255, 0.1);
    --stats-bg: linear-gradient(135deg, var(--primary-violet), var(--secondary-purple));
    --cta-bg: white;
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --hover-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s ease;
    --section-padding: 4rem 2rem;
    --content-max-width: 1200px;
    --card-padding: 2rem;
    --border-radius: 16px;
    --icon-size: 80px;
    --heading-size: 2.5rem;
    --subheading-size: 1.2rem;
    --text-size: 1rem;
}

/* Light theme variables */
[data-theme="light"] {
    --background: #f0f0f0;
    --text: #000000;
    --card-bg: rgb(255, 255, 255);
    --nav-bg: rgb(255, 255, 255);
    --nav-text: #000000;
    --hero-overlay: linear-gradient(135deg, rgba(33, 150, 243, 0.9), rgba(100, 181, 246, 0.9));
    --feature-bg: rgb(255, 255, 255);
    --benefit-bg: linear-gradient(135deg, #ffffff 0%, #f0f0f0 50%, #e0e0e0 100%);
    --benefit-card: rgba(255, 255, 255, 0.95);
    --cta-bg: rgb(255, 255, 255);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --hover-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

/* Dark theme variables */
[data-theme="dark"] {
    --background: #1a1a1a;
    --text: #ffffff;
    --card-bg: #2d2d2d;
    --light-grey: #333333;
    --nav-bg: #000000;
    --nav-text: #ffffff;
    --hero-overlay: linear-gradient(135deg, rgba(33, 150, 243, 0.95), rgba(100, 181, 246, 0.95));
    --feature-bg: #2d2d2d;
    --benefit-bg: #1a1a1a;
    --benefit-card: rgba(255, 255, 255, 0.05);
    --stats-bg: linear-gradient(135deg, #1976D2, #42A5F5);
    --cta-bg: #2d2d2d;
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --hover-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    background: var(--background);
    color: var(--text);
    transition: var(--transition);
    line-height: 1.6;
    min-height: 100vh;
}

/* Navigation */
.navbar {
    background-color: var(--nav-bg);
    padding: 1rem 2rem;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: left side;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--nav-text);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s;
}

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

.nav-button {
    background-color: var(--primary-violet);
    color: rgb(255, 255, 255);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    text-decoration: none;
    transition: background-color 0.3s;
}

.nav-button:hover {
    background-color: var(--secondary-purple);
}

/* Logo Styles */
.navbar .logo-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.navbar .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-violet), var(--secondary-purple));
    border-radius: 10px;
    color: white;
    font-size: 1.5rem;
}

.logo-text {
    color: var(--nav-text);
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 0.5px;
}

.logo-text span {
    color: var(--primary-violet);
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--card-bg);
    padding: 8px 16px;
    border-radius: 25px;
    box-shadow: var(--card-shadow);
}

.theme-toggle i {
    color: var(--primary-violet);
    font-size: 1.2rem;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--benefit-card);
    transition: .4s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: var(--primary-violet);
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-violet);
}

input:checked + .slider:before {
    transform: translateX(26px);
    background-color: white;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 100%;
    height: 3px;
    background-color: var(--nav-text);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.5);
    z-index: 999;
}

/* Hero Section */
.hero {
    padding: 6rem 2rem;
    background: var(--hero-overlay), url('https://images.unsplash.com/photo-1576091160550-2173dba999ef?ixlib=rb-4.0.3');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: rgb(0, 0, 0);
    position: relative;
}

.hero-content {
    max-width: 800px;
    background: rgba(0, 0, 0, 0.2);
    padding: 2rem;
    border-radius: 16px;
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    box-shadow: var(--card-shadow);
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

/* Features Section */
.features {
    background-color: var(--feature-bg);
}

.section-content {
    max-width: var(--content-max-width);
    margin: 0 auto;
    text-align: center;
    padding: var(--section-padding);
}

.section-title {
    color: var(--primary-violet);
    font-size: var(--heading-size);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: var(--subheading-size);
    color: var(--text);
    margin-bottom: 3rem;
    opacity: 0.9;
}

/* Cards */
.card {
    background: var(--card-bg);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: var(--card-padding);
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.card-content {
    position: relative;
    z-index: 1;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin: -2rem;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.15);
}

.icon {
    width: var(--icon-size);
    height: var(--icon-size);
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-violet), var(--secondary-purple));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.card-title {
    color: var(--primary-violet);
    margin-bottom: 1.2rem;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.card-text {
    color: var(--text);
    font-size: 1.1rem;
    line-height: 1.7;
    font-weight: 500;
    letter-spacing: 0.3px;
}

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

/* Grid Layout */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: var(--content-max-width);
    margin: 0 auto;
}

/* Benefits Section */
.benefits {
    background-color: var(--benefit-bg);
    color: white;
}

/* Statistics Section */
.statistics {
    background: var(--stats-bg), url('https://images.unsplash.com/photo-1576091160550-2173dba999ef?ixlib=rb-4.0.3');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 6rem 2rem;
}

.statistics .card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.statistics .card-title {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.statistics .card-text {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
}

.statistics .section-title {
    color: white;
}

.statistics .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

/* CTA Section */
.cta-section {
    background-color: var(--cta-bg);
}

.cta-button {
    background: linear-gradient(135deg, var(--primary-violet), var(--secondary-purple));
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--text-size);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--card-shadow);
    text-decoration: none;
    display: inline-block;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--hover-shadow);
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

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

/* Footer */
footer {
    background-color: var(--nav-bg);
    color: var(--nav-text);
    text-align: center;
    padding: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--nav-bg);
        flex-direction: column;
        gap: 1rem;
        padding: 5rem 2rem 2rem;
        transition: right 0.3s ease;
        z-index: 1000;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        right: 0;
    }

    .navbar {
        flex-direction: row;
        justify-content: space-between;
        padding: 1rem;
    }

    .nav-links a {
        width: 100%;
        text-align: center;
        padding: 0.5rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-button {
        width: 100%;
        text-align: center;
        margin-top: 1rem;
    }

    .logo-text {
        font-size: 1.2rem;
    }

    .logo-icon {
        width: 30px;
        height: 30px;
        font-size: 1.2rem;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    .menu-overlay.active {
        display: block;
    }

    body.no-scroll {
        overflow: hidden;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .grid {
        grid-template-columns: 1fr;
    }
}

/* Login Page Specific Styles */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding-top: 80px;
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.1), rgba(0, 0, 0, 0.8));
}

.login-box {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    width: 100%;
    max-width: 450px;
    padding: 2.5rem;
    margin: 1rem;
    position: relative;
    overflow: hidden;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    color: var(--primary-violet);
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text);
    opacity: 0.8;
}

.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary-violet);
}

.form-input {
    width: 100%;
    padding: 1rem 1rem 1rem 2.5rem;
    border: 1px solid rgba(100, 181, 246, 0.3);
    border-radius: 8px;
    background: var(--card-bg);
    color: var(--text);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input:focus {
    border-color: var(--primary-violet);
    box-shadow: 0 0 0 2px rgba(33, 150, 243, 0.25);
    outline: none;
}

.remember-forgot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text);
    cursor: pointer;
}

.remember-me input {
    accent-color: var(--primary-violet);
}

.forgot-password {
    color: var(--primary-violet);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.forgot-password:hover {
    color: var(--secondary-purple);
    text-decoration: underline;
}

.login-button {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary-violet), var(--secondary-purple));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(33, 150, 243, 0.4);
}

.login-button:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.social-login {
    margin-top: 2rem;
    text-align: center;
}

.social-login p {
    color: var(--text);
    opacity: 0.7;
    position: relative;
    margin-bottom: 1.5rem;
}

.social-login p:before,
.social-login p:after {
    content: "";
    position: absolute;
    top: 50%;
    width: 30%;
    height: 1px;
    background-color: rgba(100, 181, 246, 0.3);
}

.social-login p:before {
    left: 0;
}

.social-login p:after {
    right: 0;
}

.google-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 0.8rem;
    background: var(--card-bg);
    border: 1px solid rgba(100, 181, 246, 0.3);
    border-radius: 8px;
    color: var(--text);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    gap: 0.5rem;
}

.google-btn:hover {
    background: rgba(33, 150, 243, 0.05);
    border-color: var(--primary-violet);
}

.google-btn img {
    width: 20px;
    height: 20px;
}

.register-link {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--text);
}

.register-link a {
    color: var(--primary-violet);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.register-link a:hover {
    color: var(--secondary-purple);
    text-decoration: underline;
}

.error-message {
    display: none;
    background: rgba(255, 0, 0, 0.1);
    color: #ff3333;
    padding: 0.8rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.error-message i {
    font-size: 1.2rem;
}

.password-requirements {
    display: none;
    background: var(--card-bg);
    border: 1px solid rgba(100, 181, 246, 0.3);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 0.5rem;
}

.password-requirements.show {
    display: block;
}

.requirement {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text);
}

.requirement i {
    position: static;
    transform: none;
}

.requirement.valid i {
    color: #4caf50;
}

.requirement.invalid i {
    color: #ff3333;
}

/* Dark mode overrides for login page */
[data-theme="dark"] .login-container {
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.2), rgba(0, 0, 0, 0.9));
}

[data-theme="dark"] .form-input {
    background: rgba(45, 45, 45, 0.95);
    border-color: rgba(100, 181, 246, 0.2);
}

[data-theme="dark"] .google-btn {
    background: rgba(45, 45, 45, 0.95);
    border-color: rgba(100, 181, 246, 0.2);
}

[data-theme="dark"] .google-btn:hover {
    background: rgba(33, 150, 243, 0.15);
}

[data-theme="dark"] .password-requirements {
    background: rgba(45, 45, 45, 0.95);
}

/* Media queries for login page */
@media (max-width: 768px) {
    .login-box {
        padding: 2rem;
    }
    
    .login-header h1 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .login-box {
        padding: 1.5rem;
        margin: 0.5rem;
    }
    
    .remember-forgot {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

/* Features Page Specific Styles */
.features-hero {
    background: var(--hero-overlay);
    padding: 8rem 2rem 4rem;
    color: white;
    text-align: center;
}

.features-hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.features-hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
    opacity: 0.9;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 4rem 2rem;
    max-width: var(--content-max-width);
    margin: 0 auto;
}

.feature-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.feature-content {
    padding: var(--card-padding);
}

.feature-content h3 {
    color: var(--primary-violet);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.feature-content p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
    margin-top: 1rem;
}

.feature-list li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.feature-list li:before {
    content: "✓";
    color: var(--secondary-purple);
    position: absolute;
    left: 0;
}

.feature-details {
    background: var(--feature-bg);
    padding: var(--section-padding);
    margin-top: 2rem;
}

.feature-details-content {
    max-width: var(--content-max-width);
    margin: 0 auto;
}

.feature-details h2 {
    color: var(--primary-violet);
    text-align: center;
    margin-bottom: 3rem;
    font-size: var(--heading-size);
}

.feature-section {
    margin-bottom: 4rem;
}

.feature-section h3 {
    color: var(--primary-violet);
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.feature-section p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.feature-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.highlight-item {
    background: var(--light-grey);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
}

.highlight-item h4 {
    color: var(--primary-violet);
    margin-bottom: 1rem;
}

/* Footer Styles */
.footer-content {
    max-width: var(--content-max-width);
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--secondary-purple);
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--nav-text);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--nav-text);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: var(--secondary-purple);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: var(--nav-text);
    font-size: 1.5rem;
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--secondary-purple);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Media Queries for Features Page */
@media (max-width: 768px) {
    .features-hero h1 {
        font-size: 2rem;
    }

    .features-hero p {
        font-size: 1rem;
    }

    .feature-details h2 {
        font-size: 2rem;
    }

    .feature-section h3 {
        font-size: 1.5rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}