:root {
    --c1-val: 5, 21, 24;
    --c1-alt: 23, 55, 85;
    --c2-val: 49, 115, 153;
    --c3-val: 219, 75, 60;
    --c4-val: 80, 47, 119;
    --c5-val: 253, 245, 232;
    --error-val: 198, 50, 84;
    --right-val: 94, 222, 59;

    /*just to see them here*/
    --cl1: rgb(5,
            21,
            24);
    --cl2: rgb(49,
            115,
            153);
    --cl3: rgb(219,
            75,
            60);
    --cl4: rgb(80,
            47,
            119);
    --cl5: rgb(253,
            245,
            232);
    --rval: rgb(94, 222, 59);

    --c1: rgb(var(--c1-val));
    --c2: rgb(var(--c2-val));
    --c3: rgb(var(--c3-val));
    --c4: rgb(var(--c4-val));
    --c5: rgb(var(--c5-val));

    --contrast-light: var(--c5);
    --contrast-dark: var(--c1);
    --c1-contrast: var(--contrast-light);
    --c2-contrast: var(--contrast-light);
    --c3-contrast: var(--contrast-light);
    --c4-contrast: var(--contrast-light);
    --c5-contrast: var(--contrast-dark);

    --font-size: 20px;
    --inp-font-size: calc(var(--font-size) - 2px);
    --inp-padding: 15px;
    --inp-border-width: 1px;
    --font-family: "Verdana", sans-serif;
    --main-border-color: var(--c2);
    --main-text-color: var(--c1);
    --main-border-radius: 7px;
    --form-border-radius: 20px;
    --background-color: var(--c1-contrast);

    --error-color: rgb(var(--error-val));
    --error-background: rgba(var(--error-val), 0.2);
    --error-contrast: var(--contrast-light);
    --error-font-size: calc(var(--font-size) - 2px);
}

body {
    font-size: var(--font-size);
    font-family: var(--font-family);
    color: var(--main-text-color);
    background-color: var(--background-color);
}

h1 {
    font-size: calc(var(--font-size) * 1.5);
    position: relative;
}

input,
textarea,
select {
    box-sizing: content-box;
    font-size: var(--inp-font-size);
    color: var(--main-text-color);
    background-color: var(--c1-contrast);
    border-radius: var(--main-border-radius);
    border: var(--inp-border-width) solid var(--main-border-color);
    padding: var(--inp-padding);
}

textarea {
    resize: vertical;
}

select,
button {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

button {
    border-radius: var(--main-border-radius);
    border: 1px solid var(--main-border-color);
    background-color: var(--c2);
    color: var(--c5);
    padding: var(--inp-padding);
    cursor: pointer;
    font-size: calc(var(--font-size) * 1.5);
}

button:hover {
    background-color: var(--c5);
    color: var(--c2);
    padding: var(--inp-padding);
}

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

html {
    scroll-behavior: smooth;
}

body {
    line-height: 1.6;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(var(--c1-val), 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-brand-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease;
}

.nav-brand-link:hover {
    opacity: 0.8;
}

.logo-icon {
    width: 32px;
    height: 32px;
}

.nav-brand h1 {
    color: var(--c5);
    font-size: 1.5rem;
    margin: 0;
}

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

.nav-link {
    color: var(--c5);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--c2);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--c2);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--c5);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: 
        linear-gradient(135deg, rgba(var(--c1-val), 0.93) 0%, rgba(var(--c2-val), 0.93) 100%),
        url('/static/img/markings.svg');
    background-size: contain;
    background-position-x: center;
    background-position-y: calc(50% + 70px);
    background-repeat: no-repeat, no-repeat;
    color: var(--c5);
    text-align: center;
    padding: 80px 20px 20px;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background: var(--c3);
    color: var(--c5);
    padding: var(--inp-padding) calc(2 * var(--inp-padding));
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(var(--c3-val), 0.3);
}

.cta-button:hover {
    background: var(--c4);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--c4-val), 0.4);
}

/* Apps Section */
.apps-section {
    padding: 80px 0;
    background: var(--c5);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--c1);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--c2);
    border-radius: 2px;
}

/* App Card */
.app-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(var(--c1-val), 0.1);
    margin-bottom: 3rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(var(--c1-val), 0.15);
}

.app-header {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
    gap: 1.5rem;
}

.app-icon {
    flex-shrink: 0;
}

.icon-img {
    width: 80px;
    height: 80px;
    border-radius: 15px;
    object-fit: cover;
}

.app-info {
    flex: 1;
}

.app-title {
    font-size: 1.8rem;
    color: var(--c1);
    margin-bottom: 0.5rem;
}

.app-subtitle {
    color: var(--c2);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.app-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.stars {
    color: #ffd700;
    font-size: 1.2rem;
}

.rating-text {
    color: var(--c1);
    font-size: 0.9rem;
}

/* Screenshots */
.app-screenshots {
    margin-bottom: 2rem;
}

.screenshot-container {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.screenshot {
    width: 25%;
    /* height: 400px; */
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(var(--c1-val), 0.2);
    transition: transform 0.3s ease;
}

.screenshot:hover {
    transform: scale(1.05);
}

/* App Description */
.app-description {
    color: var(--c1);
}

.app-description p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.app-description h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--c2);
}

.feature-list {
    list-style: none;
    margin-bottom: 2rem;
}

.feature-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--c2);
    font-weight: bold;
}

/* App Links */
.app-links {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: space-between;
}

.download-link {
    transition: transform 0.3s ease;
}

.download-link:hover {
    transform: scale(1.05);
}

.download-link img {
    height: 50px;
    border-radius: var(--main-border-radius);
}

.learn-more-link {
    color: var(--c2);
    text-decoration: none;
    font-weight: 600;
    padding: 10px 20px;
    border: 2px solid var(--c2);
    border-radius: 25px;
    transition: all 0.3s ease;
}

.learn-more-link:hover {
    background: var(--c2);
    color: white;
}

/* Feedback Section */
.feedback-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--c1) 0%, var(--c2) 100%);
    color: var(--c5);
}

.feedback-section .section-title {
    color: var(--c5);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.feedback-form {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: var(--form-border-radius);
    backdrop-filter: blur(10px);

    & .form-overlay {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: var(--c1);  
        opacity: 0.9;
        border-radius: var(--form-border-radius);

        /* Loading Animation */
        .loading {
            height: 100%;
            width: 20%;
            background: linear-gradient(90deg, rgba(var(--c1-val), 0) 0%, rgba(var(--c5-val), 0.9) 50%, rgba(var(--c1-val), 0));
            opacity: 1;
            animation: loading-move 2s linear infinite;
        }

        & .form-final-message {
            background-color: var(--c1-contrast);
            height: 100%;
            opacity: 1;
            /* border: 1px solid var(--c1); */
            border-radius: var(--form-border-radius);
            padding: calc(2 * var(--inp-padding));
            color: var(--c1);
        }

        & div.error {
            /* border-color: var(--error-color); */
            color: var(--error-color);
        }
    }

    & .loading-send-feedback {
        display: inline-block;
        width: 20px;
        height: 20px;
        border: 3px solid rgba(255, 255, 255, 0.3);
        border-radius: 50%;
        border-top-color: #fff;
        animation: loading-spin 1s ease-in-out infinite;
    }
}

@keyframes loading-move {
    to {transform: translate(400%);}
}

@keyframes loading-spin {
    to { transform: rotate(360deg); }
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--c5);
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid transparent;
    color: var(--c1);
    transition: all 0.3s ease;
    box-sizing: border-box;
    padding: var(--inp-padding);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--c2);
    background: white;
}

.submit-btn {
    width: 100%;
    background-color: var(--c3);
    color: var(--c5);
    border: none;
    padding: var(--inp-padding);
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--main-border-radius);
    cursor: pointer;
    transition: background-color 0.3s ease;
    transform: none;
}

.submit-btn:hover {
    background-color: var(--c4);
}

.submit-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    display: none;
}

.form-message.success {
    background: rgba(var(--right-val), 0.2);
    color: var(--right-val);
    border: 1px solid var(--right-val);
    display: block;
}

.form-message.error {
    background: var(--error-background);
    color: var(--error-color);
    border: 1px solid var(--error-color);
    display: block;
}

/* Footer */
.footer {
    background: var(--c1);
    color: var(--c5);
    text-align: center;
    padding: 2rem 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--c1);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 1rem 0;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    /* .app-header {
        flex-direction: column;
        text-align: center;
    } */
    
    .app-icon {
        margin-bottom: 1rem;
    }
    
    /* .screenshot-container {
        flex-direction: column;
        align-items: center;
    } */

    
    .screenshot {
        width: 30%;
        /* height: 300px; */
    } 
    
    .app-links {
        justify-content: center;
    }
    
    .feedback-form {
        margin: 0 1rem;
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .nav {
        padding: 1rem;
    }
    
    .hero {
        padding: 100px 10px 20px;
    }
    
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .app-card {
        padding: 1.5rem;
        margin: 0 1rem 2rem;
    }
    
    .screenshot {
        width: 90%;
        /* height: 240px; */
    }
    
    .download-link img {
        height: 40px;
    }
}

/* Smooth scrolling for anchor links */
html {
    scroll-padding-top: 80px;
}

/* Turnstile styling */
.cf-turnstile {
    margin: 1rem 0;
    display: flex;
    justify-content: center;
}

.cf-turnstile iframe {
    border-radius: var(--main-border-radius);
}