:root {
    --primary-color: #6C63FF;
    --secondary-color: #4CAF50;
    --background-color: #F5F7FA;
    --text-color: #2C3E50;
    --card-background: #FFFFFF;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --gradient-primary: linear-gradient(135deg, #6C63FF 0%, #4CAF50 100%);
    --gradient-secondary: linear-gradient(135deg, #4CAF50 0%, #6C63FF 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.container::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(108, 99, 255, 0.1), transparent 60%),
                radial-gradient(circle at bottom left, rgba(76, 175, 80, 0.1), transparent 60%);
    z-index: -1;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 1s ease-out;
}

h1 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.tagline {
    color: var(--text-color);
    opacity: 0.8;
    font-size: 1.1rem;
}

.mood-selector, .time-selector {
    background: var(--card-background);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: fadeInUp 0.8s ease-out;
}

.mood-selector:hover, .time-selector:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

h2 {
    margin-bottom: 1.5rem;
    color: var(--text-color);
    position: relative;
    display: inline-block;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.mood-options, .time-options {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.mood-btn, .time-btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    background: var(--background-color);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.mood-btn::before, .time-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 0;
}

.mood-btn:hover::before, .time-btn:hover::before {
    opacity: 0.1;
}

.mood-btn:hover, .time-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow);
}

.mood-btn.selected, .time-btn.selected {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.05);
}

.break-suggestion {
    background: var(--card-background);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    animation: fadeInUp 0.8s ease-out;
    position: relative;
    overflow: hidden;
}

.break-suggestion::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
}

.suggestion-card {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
}

.activity-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    animation: pulse 2s infinite;
}

.activity-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.activity-description {
    margin-bottom: 2rem;
    color: var(--text-color);
    opacity: 0.8;
    line-height: 1.8;
}

.timer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.time-remaining {
    font-size: 2.5rem;
    font-weight: bold;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.start-timer {
    padding: 1rem 2.5rem;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1.1rem;
    position: relative;
    overflow: hidden;
}

.start-timer::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.start-timer:hover::before {
    left: 100%;
}

.start-timer:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 5px 15px rgba(108, 99, 255, 0.3);
}

.start-timer:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.hidden {
    display: none;
    opacity: 0;
    transform: translateY(20px);
}

footer {
    text-align: center;
    margin-top: 3rem;
    color: var(--text-color);
    padding: 2rem 0;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
    text-align: left;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 1rem;
}

.footer-section {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 10px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.footer-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.footer-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.footer-section p {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-color);
    opacity: 0.8;
}

@media (max-width: 768px) {
    .footer-links {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .footer-section {
        padding: 1rem;
    }
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

/* Responsive Design */
@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }
    
    .mood-btn, .time-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .time-remaining {
        font-size: 2rem;
    }
}

/* Loading Animation */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--background-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.loading::after {
    content: '';
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Navigation Styles */
.main-nav {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 10px;
}

.main-nav a {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 80%;
}

.main-nav a.active {
    color: var(--primary-color);
    font-weight: 500;
}

/* Footer Navigation */
.footer-nav {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
    padding: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.footer-nav a {
    color: var(--text-color);
    text-decoration: none;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.footer-nav a:hover {
    opacity: 1;
    color: var(--primary-color);
}

/* About Page Styles */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.about-section {
    margin-bottom: 3rem;
}

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

.feature-card {
    background: var(--card-background);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-weight: bold;
}

/* Privacy Page Styles */
.privacy-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.privacy-section {
    margin-bottom: 3rem;
}

.last-updated {
    color: var(--text-color);
    opacity: 0.7;
    margin-bottom: 2rem;
}

.privacy-card {
    background: var(--card-background);
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

/* Contact Page Styles */
.contact-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 0;
}

.contact-intro {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-form {
    background: var(--card-background);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
}

.submit-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(108, 99, 255, 0.3);
}

.contact-info {
    display: grid;
    gap: 1.5rem;
}

.info-card {
    background: var(--card-background);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
}

.info-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    color: var(--text-color);
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.social-link:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .main-nav {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .footer-nav {
        flex-wrap: wrap;
        gap: 1rem;
    }
}