styles.css

/* Glass Container
 * Creates a frosted glass effect with backdrop-filter.
 * Reference: https://ui.glass/generator/
 */
.glass-container {
    position: relative;
    width: min(600px, 80vw);
    height: min(600px, 80vw);
    aspect-ratio: 1/1;
    
    background: rgba(255, 255, 255, 0.12);  /* Semi-transparent white background */
    
    /* Apply glass morphism using backdrop filter */
    /* Reference: 
    https://developer.mozilla.org/en-US/docs/Web/CSS/backdrop-filter 
     https://www.w3schools.com/cssref/css3_pr_backdrop-filter.php 
     */
    -webkit-backdrop-filter: 
        blur(50px)
        saturate(180%)
        brightness(105%)
        contrast(1.1);
    backdrop-filter: 
        blur(50px)         
        saturate(180%)
        brightness(105%)
        contrast(1.1);
        
   
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 
        0 0 30px 10px rgba(0, 0, 0, 0.3),        /* Outer shadow */
        inset 0 0 3px rgba(255, 255, 255, 0.2); /* Inner shadow */
    overflow: hidden;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 100px;
}

/* Responsive Adjustments
 * Adapt layout for smaller screens
 * Reference: https://web.dev/responsive-web-design-basics/
 */
@media (max-width: 768px) {
    .glass-container {
        width: 90vw;
    }
}


/* Gradient Background */
/* Add a dynamic animated gradient */
/* Reference: https://cssgradient.io  https://www.w3schools.com/css/css3_gradients.asp */
.gradient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: linear-gradient(
        -45deg, /* Sets the gradient angle */
        #000000 0%,    /* Black */
        #2c3e50 40%,   /* Dark blue */
        #404262 60%,   /* Greyish blue */
        #000000 100%   /* Black again */
    );
    background-size: 300% 300%;  /* Expand gradient */
    animation: gradientBG 20s ease-in-out infinite alternate; /* Smooth looping animation */
}

/* Background Rain Pattern */
.background-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;  /* Place it above gradient-bg but below other elements */
    pointer-events: none;  /* Allow clicks to pass through */
    opacity: 0.4;  /* Make the pattern subtle */
}

/* Reference: https://developer.mozilla.org/en-US/docs/Web/CSS/@keyframes */
@keyframes gradientBG {
    0% {
        background-position: 0% 0%;  /* Starts the gradient at the top-left */
    }
    50% {
        background-position: 100% 100%; /* Moves the gradient to the bottom-right */
    }
    100% {
        background-position: 0% 0%; /* Returns the gradient to the top-left */
    }
}

/* Cloud Animations */
/* Add floating animated clouds with position and movement */
/* Reference: https://codepen.io/fershocastro/pen/dVBgxQ */

.clouds-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

/* Cloud Shape and Styling */
/* Create semi-realistic clouds with overlapping circles */
/* Reference: https://lauryndbrown.github.io/2017/06/08/creating-clouds-in-css.html */
.cloud { 
    position: absolute;
    width: 180px;  
    height: 60px;  
    background: #ECEFF1;
    border-radius: 30px;
    box-shadow: 10px 10px rgba(0,0,0,0.1);
}


.cloud::before {
    content: "";  /* Adds an empty content before the cloud */
    position: absolute;
    width: 100px;  
    height: 100px;
    background: inherit;
    border-radius: 50%;
    top: -50px;
    right: 30px;
}

.cloud::after {
    content: "";
    position: absolute;
    width: 80px;  
    height: 80px;
    background: inherit;
    border-radius: 50%;
    top: -35px;
    left: 30px;
}

/* Floating Cloud Animations */
/* Apply different speeds and delays to clouds */
.cloud1 { 
    top: 10%; 
    animation: floatCloud 38s linear infinite;
}
.cloud2 { 
    top: 30%; 
    animation: floatCloud 45s linear infinite;
    animation-delay: -25s;
}
.cloud3 { 
    top: 50%; 
    animation: floatCloud 42s linear infinite;
    animation-delay: -15s;
}
.cloud4 { 
    top: 70%; 
    animation: floatCloud 35s linear infinite;
    animation-delay: -30s;
}
.cloud5 { 
    top: 90%; 
    animation: floatCloud 40s linear infinite;
    animation-delay: -8s;
}

@keyframes floatCloud {
    0% {
        transform: translateX(-200px); /* Starts the cloud off-screen to the left */
    }
    100% {
        transform: translateX(calc(100vw + 200px));  /* Moves the cloud off-screen to the right */
    }
}

/* Modal Styles */
/* Define the styles for the Design System modal */
.poetry-container {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    box-sizing: border-box;
}

.rain-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none; /* Allows interaction with underlying content */
}

/* Styles for the animated raindrop lines. */
.raindrops line {
    stroke: rgba(255, 255, 255, 0.5);
    stroke-width: 1;
}

/* Text styling for the poem lines. */
.poem-text {
    font-family: 'Playfair Display', serif;
    font-size: 24px;
    fill: rgba(255, 255, 255, 0.9);
    opacity: 0;
}

.poem-line {
    font-family: 'Playfair Display', serif;
    font-size: clamp(24px, 4vw, 32px);
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
    margin: 0;
    padding: 0;
    width: 100%;
    text-align: center;
    line-height: 1.4;
}

/* Poem text animation*/

/* Adds a bounce effect on hover for rain-themed text (First line). */

.poem-line[data-theme="rain"]:hover {
    animation: rainBounce 0.5s ease-in-out infinite;
} 
 
/* Tears theme splits words into floating pieces with alternating motion (Second Line). */
.poem-line[data-theme="tears"] {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.poem-line[data-theme="tears"] .word {
    display: inline-block;
    transition: transform 0.3s ease;
}

/* Animation for odd-indexed words (upward floating). */
.poem-line[data-theme="tears"]:hover .word:nth-child(odd) {
    animation: floatUpThenDown 3s ease-in-out infinite; /* Up-and-down motion */
}

.poem-line[data-theme="tears"]:hover .word:nth-child(even) {
    animation: floatDownThenUp 3s ease-in-out infinite;  /* down-and-up motion */
}

/* Lonely hover Effects (Third Line)*/
.poem-line[data-theme="lonely"]:hover {
    animation: gentleStretch 2s cubic-bezier(0.4, 0, 0.2, 1); /* stretch and shrink motion */
}


@keyframes rainBounce { /* Reference:   https://codepen.io/annakaz/pen/GNRxQj  https://codepen.io/MarioDesigns/pen/woJgeo */
    0%, 100% { transform: translateY(0); } /* start and end at the same position */
    50% { transform: translateY(3px); } /* bounce up */
 }


/* Reference: https://www.geeksforgeeks.org/css-floating-animation */ 
@keyframes floatUpThenDown {
    0%, 100% { transform: translateY(0); }
    25% { transform: translateY(-12px); }
    75% { transform: translateY(8px); }
}

@keyframes floatDownThenUp {
    0%, 100% { transform: translateY(0); }
    25% { transform: translateY(8px); }
    75% { transform: translateY(-12px); }
}

/* Reference:

https://codepen.io/danieledesantis/pen/WNXvQOb
https://codepen.io/Havatar/pen/wvjQwK 

*/

@keyframes gentleStretch {
    0% { 
        letter-spacing: normal;
        transform: scale(1);
    }
    40% { 
        letter-spacing: 8px;
        transform: scale(1.03);
    }
    80% { 
        letter-spacing: 4px;
        transform: scale(1.01);
    }
    100% { 
        letter-spacing: normal;
        transform: scale(1);
    }
}

/* Globe fade animation */
@keyframes globalFade {
    0% { opacity: 1; transform: translateY(0); }
    50% { opacity: 0; transform: translateY(-10px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Text styling for the poem lines. */
.poem-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    text-align: center;
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ---------------------------------
   Buttons and Hover Effects
   Reference: https://m3.material.io/components/buttons
---------------------------------- */
.toggle-button.active {
    background-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.toggle-button.after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.3s ease-out;
}

.toggle-button:active::after {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 0;
}

/* Design System Modal */
.design-modal {
    background: rgba(28, 28, 28, 0.95); /* Dark semi-transparent background */
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    color: rgba(255, 255, 255, 0.9);
    max-width: 800px;
    width: 90vw;
    max-height: 90vh;
    padding: 0;
}

.modal-content {
    padding: 2.5rem;
}

/* Header Section with Design System title */
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);  
    margin-bottom: 3.5rem;
}


.design-section {
    margin-bottom: 3.5rem;
}

/* Colors Section */
.design-section.colors {
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);  
}

/* Typography Section */
.design-section.typography {
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1); 
}


.design-section.layout {
    margin-bottom: 0;
}

/* Section Headers */
.design-section h3 {
    font-family: 'Roboto', sans-serif;
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;  
    padding-left: 0; 
    text-align: left;
}

/* Section Content */
.color-grid,
.type-samples,
.layout-samples {
    margin-bottom: 1.75rem; 
    padding-left: 0;  
    margin-top: 1rem;
}

/* Colors Section */
.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

/* Background Color Preview in Design System Modal */
.color-preview.bg-gradient {
    background: linear-gradient(
        -45deg, /* Sets the gradient angle */
        #000000 0%,    /* Black */
        #2c3e50 40%,   /* Dark blue */
        #404262 60%,   /* Greyish blue */
        #000000 100%   /* Black again */
    );
    height: 120px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Glass Effect Preview in Design System Modal */
.color-preview.glass-effect {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(50px);
    height: 120px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.color-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    overflow: hidden;
    padding-bottom: 1rem;
    min-height: 280px;
    display: flex;
    flex-direction: column;
}

.color-preview {
    height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-shrink: 0;
}


.text-colors {
    background: #2c3e50;
    height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.text-colors span {
    display: block;
    margin: 0.75rem 0;
    font-family: 'Roboto', sans-serif;
    font-size: 1rem;
}


.text-color {
    background: rgba(255, 255, 255, 0.9);  
}

/* Typography Section */
.type-samples {
    display: grid;
    gap: 1.5rem;
}

.type-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 1.2rem;
}

.type-preview {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Font styles with shared color */
.font-playfair {
    font-family: 'Playfair Display', serif;
    font-size: 28px;
    color: rgba(255, 255, 255, 0.9);
}

.font-roboto {
    font-family: 'Roboto', sans-serif;
    font-size: 28px;
    color: rgba(255, 255, 255, 0.9);
}

.ui-text-sm {
    font-family: 'Roboto', sans-serif;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

/* Create shared text styles */
.text-white {
    color: rgba(255, 255, 255, 0.9);
  }

.type-info {
    padding: 0.75rem 0;
}

.type-info span {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.type-info code {
    display: block;
    font-family: monospace;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0.5rem;
}

/* Layout Section */
.layout-samples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.layout-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 1.5rem;
}

.layout-preview {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 1rem;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Main Container Preview */
.container-preview {
    width: 120px;
    aspect-ratio: 1/1;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Cloud Preview */
.cloud-preview {
    width: 180px;
    height: 60px;
    background: #ECEFF1;
    border-radius: 30px;
    position: relative;
    margin-top: 30px;
}

.cloud-preview::before,
.cloud-preview::after {
    content: '';
    position: absolute;
    background: #ECEFF1;
}

.cloud-preview::before {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    top: -50px;
    left: 15px;
}

.cloud-preview::after {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    top: -60px;
    right: 15px;
}

/* Controls Container Preview */
.controls-preview {
    width: 180px;
    height: 48px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(20px);
    border-radius: 100px;
    padding: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.toggle-preview {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
}

.button-preview {
    width: 80px;
    height: 32px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    margin-left: auto;
}

.layout-info {
    padding: 0.5rem 0;
}

.layout-info span {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.layout-info code {
    display: block;
    font-family: monospace;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0.5rem;
}

/* Info Styles */
.color-info,
.type-info,
.layout-info {
    padding: 1rem;
}

.color-info span,
.type-info span,
.layout-info span {
    display: block;
    margin-bottom: 0.5rem;
}

.color-info code,
.type-info code,
.layout-info code {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}


.controls-container {
    position: relative;
    display: flex;
    align-items: center;
    gap: 24px;
    z-index: 3;
    padding: 16px;
    
  
    background: rgba(255, 255, 255, 0.12);
    
    
    -webkit-backdrop-filter: 
        blur(50px)
        saturate(180%)
        brightness(105%)
        contrast(1.1);
    backdrop-filter: 
        blur(50px)
        saturate(180%)
        brightness(105%)
        contrast(1.1);
        
    border-radius: 100px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 
        0 0 30px 10px rgba(0, 0, 0, 0.3),
        inset 0 0 3px rgba(255, 255, 255, 0.2);
    margin-top: -60px;
}


.audio-controls {
    display: flex;
    gap: 16px;  
}


.toggle-button {
    width: 48px; 
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.toggle-button:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.toggle-button:active {
    transform: translateY(0);
}

.toggle-button.active {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2),
                inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.toggle-button .icon {
    font-size: 24px;  
    position: relative;
    z-index: 2;
}


.design-button {
    height: 48px;  
    padding: 0 24px;
    background: rgba(255, 255, 255, 0.15);
    border: none;
    border-radius: 100px;
    color: white;
    font-family: 'Roboto', sans-serif;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.1px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.design-button:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.design-button:active {
    transform: translateY(0);
}


.glass-container {
    padding-bottom: 100px; 


/* Reference: https://developer.mozilla.org/en-US/docs/Web/CSS/animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.controls-container {
    animation: fadeInUp 0.6s ease-out;
}

.button-icon {
    width: 18px;
    height: 18px;
    fill: currentColor;
}


/* Typography Scale */
.typography-scale {
    display: grid;
    gap: 1rem;
}

.type-sample {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
}

/* Layout Components */
.layout-preview {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
}

.layout-box {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
    text-align: center;
}

/* Animation Utilities */
.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

.scale-in {
    animation: scaleIn 0.2s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from { transform: scale(0.95); }
    to { transform: scale(1); }
}

@media (max-width: 768px) {
    .poem-line {
        font-size: clamp(20px, 3.5vw, 28px); 
    }
}
}