@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100;0,300;0,400;0,500;0,700;0,900;1,100;1,300;1,400;1,500;1,700;1,900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200');

:root {
    /* Background Colors */
    --color-background: #121212; /* Dark gray background */
    --color-surface: #1e1e1e; /* Slightly lighter for surfaces like cards */
  
    /* Text Colors */
    --color-text-primary: #ffffff; /* White for primary text */
    --color-text-secondary: #b3b3b3; /* Light gray for secondary text */
    --color-text-muted: #808080; /* Darker gray for muted text */
  
    /* Accent Colors */
    --color-accent-primary: #ff5722; /* Orange for primary accent */
    --color-accent-primary-dark: #d84315; /* Even darker orange */
    --color-accent-primary-darker: #c62828; /* Darker orange */
    --color-accent-secondary: #fdd835; /* Yellow for secondary accent */
    --color-accent-secondary-dark: #fbc02d; /* Darker yellow */
    --color-accent-secondary-darker: #f57f17; /* Even darker yellow */
    --color-accent-tertiary: #03a9f4; /* Blue for tertiary accent */

    /* Accent Contrast Colors */
    --color-accent-primary-contrast: #000000; /* Black for primary accent contrast */
    --color-accent-secondary-contrast: #000000; /* Black for secondary accent contrast */
    --color-accent-tertiary-contrast: #ffffff; /* White for tertiary accent contrast */
    
    /* Border Colors */
    --color-border: #333333; /* Darker gray for borders */
  
    /* Status Colors */
    --color-error: #cf6679; /* Light red for error messages */
    --color-warning: #f4b400; /* Yellow for warning messages */
    --color-success: #00c853; /* Green for success messages */

    --color-gradient-accent-1: rgba(255, 87, 34, 0.2);
    --color-gradient-accent-2: rgba(3, 169, 244, 0.2);
    --color-gradient-accent-3: rgba(255, 215, 64, 0.1);
    --color-gradient-accent-error: rgba(207, 102, 121, 0.2);
}

body {
    margin: 0;
    color: var(--color-text-primary);
    background-color: var(--color-background);
    font-family: 'Roboto', sans-serif;
    position: relative;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--color-text-primary);
    text-align: center;
}
h2 {
    font-size: 2.2rem;
    margin-bottom: 40px;
    position: relative;
}
h1.underlined::after, h2.underlined::after, h3.underlined::after, h4.underlined::after, h5.underlined::after, h6.underlined::after {
    content: '';
    display: block;
    width: 64px;
    height: 4px;
    background-color: var(--color-accent-primary);
    border-radius: 2px;
    margin: 20px auto 0;
}

p {
    color: var(--color-text-secondary);
}

.button {
    display: inline-block;
    font-family: Arial, sans-serif;
    font-size: 16px;
    font-weight: bold;
    padding: 10px 20px;
    margin: 10px 0;
    border-radius: 500px;
    text-decoration: none;
    font-size: 1rem;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    cursor: pointer;
    border: none;
    outline: none;
    text-align: center;
    white-space: nowrap;
    user-select: none;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2); /* Subtle shadow */
}
.button:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3); /* Darker shadow on hover */
}
.button:active {
    transform: scale(0.95);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); /* Light shadow on active */
}
.button.primary {
    background-color: var(--color-accent-primary);
    color: var(--color-accent-primary-contrast);
}
.button.primary:hover {
    background-color: var(--color-accent-primary-dark);
}
.button.primary:active {
    background-color: var(--color-accent-primary-darker);
}
.button.secondary {
    background-color: var(--color-accent-secondary);
    color: var(--color-accent-secondary-contrast);
}
.button.secondary:hover {
    background-color: var(--color-accent-secondary-dark);
}
.button.secondary:active {
    background-color: var(--color-accent-secondary-darker);
}
input[type="text"], input[type="password"], input[type="email"], input[type="file"] {
    padding: 10px;
    margin: 5px 0;
    border-radius: 5px;
    border: 1px solid var(--color-border);
    background-color: var(--color-surface);
    color: var(--color-text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease, background-color 0.3s ease; /* Smooth transitions */
}
input[type="text"]:hover, input[type="password"]:hover, input[type="email"]:hover, input[type="file"]:hover,
input[type="text"]:focus, input[type="password"]:focus, input[type="email"]:focus, input[type="file"]:focus {
    border-color: var(--color-accent-primary); /* Highlight border color on focus */
    background-color: var(--color-background); /* Change background on focus for better contrast */
}

input[type="text"]:active, input[type="password"]:active, input[type="email"]:active, input[type="file"]:active {
    border-color: var(--color-accent-primary-dark); /* Darker border color on active state */
    background-color: var(--color-surface); /* Reset background on active state */
}

.page {
    background: linear-gradient(135deg, var(--color-background) 0%, var(--color-surface) 100%);
    color: var(--color-text-primary);

    min-height: 100vh;
    margin: 0;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    width: 100%;
    box-sizing: border-box;
    max-width: 1400px;
    margin: 0 auto;
    padding: 100px 15px;
}

/* Corner gradient accents */
#upload-page::before, #features-page::before, #landing-page::before, #download-page::before, #uploaded-page::before, #error-page::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none; /* Ensure the overlay does not interfere with page content */
}


#landing-page::before {
    background: radial-gradient(circle at top right, var(--color-gradient-accent-2), transparent 40%), radial-gradient(circle at top left, var(--color-gradient-accent-1), transparent 40%);
}
#upload-page::before {
    background: radial-gradient(circle at top left, var(--color-gradient-accent-1), transparent 40%);
}
#download-page::before {
    background: radial-gradient(circle at top right, var(--color-gradient-accent-2), transparent 40%);
}
#features-page::before {
    background: radial-gradient(circle at bottom right, var(--color-gradient-accent-3), transparent 40%);
}
#uploaded-page::before {
    background: radial-gradient(circle at bottom right, var(--color-gradient-accent-3), transparent 40%);
}
#error-page::before {
    background: radial-gradient(circle at top right, var(--color-gradient-accent-error), transparent 40%);
}

/* Ensure content appears above the accent */
.page > * {
    position: relative;
    z-index: 1;
}

.v-center-stack {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
}

/* Features Section */
#features-page {
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    max-width: 100%;
}

.feature {
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    /* border: 1px solid var(--color-border); */
    padding: 20px;
}

.feature h3 {
    font-size: 1.6rem;
    margin-bottom: 10px;
    color: var(--color-text-primary);
}

.feature p {
    color: var(--color-text-secondary);
    font-size: 1rem;
}

.feature:hover {
    transform: translateY(-15px) scale(1.05);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.5);
}

.feature .icon {
    font-size: 5em;
    margin-bottom: 20px;
    width: 1.2em;
    aspect-ratio: 1/1;
    display: inline-block;
    font-variation-settings: 'FILL' 0, 'wght' 100, 'GRAD' 0, 'opsz' 24;
    font-family: 'Material Symbols Outlined';


    background: linear-gradient(to bottom, var(--color-accent-primary), var(--color-accent-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;

    transition: transform 0.3s ease;
}
.feature:hover .icon {
    transform: scale(1.7);
}

.icon.easy-sharing-icon::before {
    content: 'share';
}
.icon.fast-speed-icon::before {
    content: 'bolt';
}
.icon.high-security-icon::before {
    content: 'shield_lock';
}
.icon.unlimited-storage-icon::before {
    content: 'all_inclusive';
}
.icon.large-file-icon::before {
    content: 'folder_zip';
}


/* Footer Section */
footer {
    color: var(--color-text-muted);
    padding: 20px 0;
    text-align: center;
    width: 100%;
    font-size: 0.9rem;
    position: absolute;
    bottom: 0;
}

/** upload page */
#upload-form {
    display: flex;
    flex-direction: column-reverse;
    align-items: center;
    justify-content: center;
}

#upload-form label {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--color-text-primary);
    margin-top: 20px;
}

#upload-form input[type="submit"] {
    margin-top: 20px;
}

#upload-form input {
    width: 100%;
}

/** download page */
#download-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
#download-form label {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--color-text-primary);
    margin-top: 20px;
}
#download-form input[type="submit"] {
    margin-top: 20px;
}
#download-form input {
    width: 100%;
}
#download-form .filename {
    font-size: 1.2rem;
    color: var(--color-text-primary);
    margin-top: 20px;
    margin-bottom: 10px;
}
#download-form .size {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    margin-top: 10px;
}

/** download page */
#delete-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
#delete-form label {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--color-text-primary);
    margin-top: 20px;
}
#delete-form input[type="submit"] {
    margin-top: 20px;
}
#delete-form input {
    width: 100%;
}
#delete-form .filename {
    font-size: 1.2rem;
    color: var(--color-text-primary);
    margin-top: 20px;
    margin-bottom: 10px;
}

/** uploaded page */

#uploaded-page {
    text-align: center;
}

#uploaded-page .filename {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--color-text-primary);
}

#uploaded-page a {
    display: inline-block;
    font-size: 1rem;
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: color 0.3s ease;
    max-width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

#uploaded-page a:hover {
    color: var(--color-accent-primary-dark);
}
#uploaded-page label {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--color-text-primary);
    margin-top: 20px;
}