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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #f8fafc;
    --text-color: #334155;
    --text-light: #64748b;
    --white: #ffffff;
    --gray-light: #f1f5f9;
    --border-color: #e2e8f0;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 8px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section__title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: #1e293b;
}

.section__subtitle {
    font-size: 1.125rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-light);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-family: inherit;
    font-size: 1rem;
}

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

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

.btn--secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

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

.btn--large {
    padding: 14px 32px;
    font-size: 1.125rem;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav__logo h2 {
    color: var(--primary-color);
    font-weight: 700;
}

.nav__list {
    display: flex;
    list-style: none;
}

.nav__item {
    margin-left: 2rem;
}

.nav__link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.nav__link:hover::after {
    width: 100%;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.toggle-bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 3px 0;
    transition: 0.3s;
}

.nav__close {
    display: none;
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f0f4ff 0%, #e6f0ff 100%);
    overflow: hidden;
}

.hero__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
}

.hero__content {
    flex: 1;
    max-width: 550px;
}

.hero__title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: #1e293b;
}

.hero__description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.hero__buttons {
    display: flex;
    gap: 1rem;
}

.hero__image {
    flex: 1;
    display: flex;
    justify-content: center;
}

/* Phone Mockup */
.phone-mockup {
    width: 280px;
    height: 560px;
    background: #1e293b;
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    position: relative;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 30px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.app-interface {
    padding: 20px;
    color: white;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.app-header {
    text-align: center;
    margin-bottom: 30px;
}

.app-time {
    font-size: 14px;
    font-weight: 500;
}

.app-content {
    flex: 1;
}

.task-item {
    display: flex;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.task-check {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.5);
    margin-right: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

.task-item.completed .task-check {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.8);
}

.task-text {
    font-size: 14px;
}

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

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature__card {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.feature__card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.feature__icon {
    margin-bottom: 1.5rem;
}

.icon-circle {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background-color: var(--gray-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto;
}

.feature__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e293b;
}

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

/* About Section */
.about {
    background-color: var(--gray-light);
}

.about__content {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.about__text {
    flex: 1;
}

.about__description {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    color: var(--text-light);
}

.about__list {
    list-style: none;
}

.about__list-item {
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.about__image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.stats-card {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    width: 100%;
    max-width: 300px;
}

.stat {
    text-align: center;
}

.stat__number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

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

/* Testimonials Section */
.testimonials {
    background-color: var(--white);
}

.testimonials__container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial__card {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.testimonial__text {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: var(--text-light);
}

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

.author__avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-right: 1rem;
}

.author__name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

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

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    text-align: center;
}

.cta__title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta__description {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta__buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.cta .btn--secondary {
    background-color: transparent;
    color: var(--white);
    border: 1px solid var(--white);
}

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

/* Footer */
.footer {
    background-color: #0f172a;
    color: var(--white);
    padding: 60px 0 30px;
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer__description {
    color: #94a3b8;
    margin-bottom: 1rem;
}

.footer__subtitle {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer__links {
    list-style: none;
}

.footer__links li {
    margin-bottom: 0.75rem;
}

.footer__links a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer__links a:hover {
    color: var(--white);
}

.footer__bottom {
    border-top: 1px solid #334155;
    padding-top: 2rem;
    text-align: center;
}

.footer__copyright {
    color: #94a3b8;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero__container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero__buttons {
        justify-content: center;
    }
    
    .about__content {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--white);
        padding: 5rem 2rem 0;
        transition: 0.5s;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }
    
    .nav__menu.active {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
    }
    
    .nav__item {
        margin: 0 0 2rem 0;
    }
    
    .nav__toggle {
        display: flex;
    }
    
    .nav__close {
        display: block;
    }
    
    .hero__title {
        font-size: 2.5rem;
    }
    
    .section__title {
        font-size: 2rem;
    }
    
    .cta__buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 576px) {
    .hero__title {
        font-size: 2rem;
    }
    
    .hero__buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
        text-align: center;
    }
    
    .features__grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials__container {
        grid-template-columns: 1fr;
    }
}