@import url('https://fonts.googleapis.com/css2?family=Dancing+Script:wght@400;700&family=EB+Garamond:ital,wght@0,400;0,700;1,400&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Great+Vibes&display=swap');

:root {
    --bg-color: #e9e6f2; /* Light Lavender */
    --container-bg-color: #ffffff; /* White */
    --text-color: #5d5d5d; /* Grey */
    --h1-color: #a391b3; /* Dusty Purple */
    --h2-color: #a391b3; /* Dusty Purple */
    --button-bg-color: #c0b2d3; /* Lavender */
    --button-text-color: #ffffff; /* White */
    --button-hover-bg-color: #a391b3; /* Dusty Purple */
    --border-color: #c0b2d3; /* Lavender */
    --input-border-color: #c0b2d3; /* Lavender */
    --input-bg-color: #ffffff; /* White */
    --error-color: #A94442;
    --box-shadow-color: rgba(0,0,0,0.05);
    --font-family-base: 'EB Garamond', serif;
    --font-family-title: 'Great Vibes', cursive;
    /* Variables for date picker */
    --webkit-indicator-invert: 0; /* Default: no inversion for light mode */
    --form-elements-color-scheme: light;
    --card-bg-color: #ffffff; /* Parchment */
}

html.dark-mode body {
    --bg-color: #2e2226; /* Dark Purple */
    --container-bg-color: #3e3034; /* Darker Purple */
    --text-color: #e9e6f2; /* Light Lavender */
    --h1-color: #c0b2d3; /* Lavender */
    --h2-color: #c0b2d3; /* Lavender */
    --button-bg-color: #a391b3; /* Dusty Purple */
    --button-text-color: #ffffff; /* White */
    --button-hover-bg-color: #c0b2d3; /* Lavender */
    --border-color: #a391b3; /* Dusty Purple */
    --input-border-color: #a391b3; /* Dusty Purple */
    --input-bg-color: #3e3034; /* Darker Purple */
    --error-color: #E57373;
    --box-shadow-color: rgba(0,0,0,0.2);
    /* Dark mode overrides for date picker */
    --webkit-indicator-invert: 1; /* Invert if the default OS indicator is dark */
    --form-elements-color-scheme: dark;
    --card-bg-color: #3e3034; /* Darker Parchment */
}

body {
    font-family: var(--font-family-base);
    background-color: var(--bg-color);
    color: var(--text-color);
    opacity: 0;
    transition: opacity 0.3s ease-in-out, background-color 0.5s ease, color 0.5s ease;
}

body.fade-in {
    opacity: 1;
}

body.noscroll {
    overflow: hidden;
}
.container {
    background-color: var(--container-bg-color);
    padding: 20px;
    border-radius: 20px;
    box-shadow: 0 0 10px var(--box-shadow-color);
    max-width: 800px;
    width: 100%;
    margin: 20px auto; /* Center horizontally */
    box-sizing: border-box; /* Include padding in the width calculation */
    text-align: center; /* Center contents like intro text and nav options */
    transition: background-color 0.5s ease;
}
h1 {
    font-family: var(--font-family-title);
    font-size: 4.5em;
    color: var(--h1-color);
    text-align: center;
    margin-bottom: 0.3em;
    margin-top: 0;
}

.body-envelope h1 {
    animation: zoomIn 1s forwards;
}
a {
    text-decoration: none;
    color: var(--font-family-title);
}
h2 {
    font-family: var(--font-family-base);
    color: var(--h2-color);
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.letter-date {
    font-family: var(--font-family-base);
    font-size: 1.2em;
    color: var(--h2-color);
    margin-bottom: 1em;
}
label {
    display: block;
    margin-bottom: 8px;
    font-family: var(--font-family-base);
    color: var(--text-color);
    text-align: center;
}

.button-style, button {
    font-family: var(--font-family-base);
    background-color: var(--button-bg-color);
    color: var(--button-text-color);
    cursor: pointer;
    border: 1px solid var(--input-border-color);
    padding: 15px 15px;
    border-radius: 50px;
    text-decoration: none;
    margin-bottom: 10px;
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: fit-content;
    text-align: center;
}

.button-style, navButton {
    font-family: var(--font-family-base);
    background-color: var(--button-bg-color);
    color: var(--button-text-color);
    cursor: pointer;
    border: 1px solid var(--input-border-color);
    padding: 15px 15px;
    border-radius: 50px;
    text-decoration: none;
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: fit-content;
    text-align: center;
}

.button-style:hover, button:hover {
    background-color: var(--button-hover-bg-color);
}

.note-container {
    margin-top: 20px;
    background-color: transparent;
    border-radius: 4px;
}
.note-content pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: 'Dancing Script', cursive;
    font-size: 1.5em; /* Increased size for better readability */
    line-height: 1.6;
    color: var(--text-color);
    text-align: center;
    max-width: 90%;
    margin: 0 auto;
}
.error {
    color: var(--error-color);
    font-weight: bold;
    font-family: var(--font-family-base);
    text-align: center;
}
.error-container {
    border-top: none;
    padding-top: 0;
}

.back-link-container {
    text-align: center;
    margin-bottom: 20px;
}
.back-link-container a {
    color: var(--text-color);
    text-decoration: none;
    font-family: var(--font-family-base);
}
.back-link-container a:hover {
    text-decoration: underline;
}

a.back-link.button-style {
    color: var(--button-text-color);
    text-decoration: none;
}

a.back-link.button-style:hover {
    text-decoration: none;
}

.intro-text {
    font-size: 1.1em;
    margin-bottom: 30px;
    color: var(--text-color);
}

.main-navigation-button {
    box-sizing: border-box;
    font-size: 1.1em;
    margin: 0 10px;
    padding: 15px 30px;
    display: inline-block;
}
.navigation-options {
    margin-top: 30px;
}

.login-options {
    margin-top: 30px;
    text-align: center;
}

.sso-button {
    padding: 15px 30px;
    font-size: 1.2em;
    min-width: 200px;
}

.flashes {
    margin-top: 20px;
    padding: 10px;
    list-style: none;
    text-align: center;
}

.flashes .flash-error {
    color: var(--error-color, #D8000C);
    background-color: var(--error-background-color, #FFD2D2);
    border: 1px solid var(--error-color, #D8000C);
    padding: 10px;
    border-radius: 5px;
}

li {
    list-style: none;
}
ul {
    padding: 0;
    margin: 0;
    list-style-type: none;
    margin-block-start: 1em;
    margin-block-end: 1em;
    padding-inline-start: 0px;
    unicode-bidi: isolate;
}

.year-selection-list{
    list-style-type: none;
    padding: 0;
    margin-top: 10px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    align-items: center;
}
.year-button {
    width: 100px;
    box-sizing: border-box;
    font-family: var(--font-family-base);
    background-color: var(--button-bg-color);
    color: var(--button-text-color);
    cursor: pointer;
    border: 1px solid var(--input-border-color);
    padding: 15px 15px;
    border-radius: 50px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.day-selection-list {
    list-style-type: none;
    padding: 0;
    margin-top: 10px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    grid-gap: 10px;
}
.day-button {
    width: 100%;
    box-sizing: border-box;
    text-align: center;
    font-family: var(--font-family-base);
    background-color: var(--button-bg-color);
    color: var(--button-text-color);
    cursor: pointer;
    border: 1px solid var(--input-border-color);
    padding: 15px 15px;
    border-radius: 50px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Form Styling */
.form-group {
    margin-bottom: 20px;
    text-align: center;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: var(--text-color);
    text-align: center; /* Center the labels */
}

.form-group input[type="date"],
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--input-border-color);
    border-radius: 20px;
    background-color: var(--input-bg-color);
    color: var(--text-color);
    font-family: var(--font-family-base);
    font-size: 1em;
    box-sizing: border-box; /* Ensures padding doesn't affect width */
    color-scheme: var(--form-elements-color-scheme);
}

.form-group input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(var(--webkit-indicator-invert));
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-control-file {
    display: block;
    width: 100%;
    padding: 12px;
    border: 1px solid var(--input-border-color);
    border-radius: 20px;
    background-color: var(--input-bg-color);
    color: var(--text-color);
    box-sizing: border-box; /* Ensures padding doesn't affect width */
}

#single-letter-form, #bulk-upload-form {
    max-width: 600px; /* Set a max-width for the forms */
    margin: 0 auto; /* Center the forms */
}

.form-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 20px;
}


.month-selection-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    align-items: right;
    justify-items: center;
    list-style: none;
    gap: 10px;
}
.month-button {
    width: 100px;
    box-sizing: border-box;
    font-family: var(--font-family-base);
    background-color: var(--button-bg-color);
    color: var(--button-text-color);
    cursor: pointer;
    border: 1px solid var(--input-border-color);
    padding: 15px 15px;
    border-radius: 50px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.container > p > a.back-link {
    color: var(--button-text-color);
    text-decoration: none;
    font-family: var(--font-family-base);
    margin-bottom:15px;
    display:inline-block;
}
.container > p > a.back-link:hover {
    text-decoration: underline;
    color: var(--button-text-color);
}

.container a.button-style:hover {
    text-decoration: none !important;
}

#themeIconToggle {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    background-color: var(--container-bg-color);
    border: 1px solid var(--input-border-color);
    border-radius: 50%;
    padding: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

#themeIconToggle:hover {
    background-color: var(--bg-color);
    border-color: var(--text-color);
}

.theme-icon {
    width: 22px;
    height: 22px;
    stroke: var(--text-color);
    fill: none;
}
html.dark-mode .theme-icon {
    stroke: var(--text-color);
}

.moon-icon {
    display: none;
}
.sun-icon {
    display: block;
}
html.dark-mode .moon-icon {
    display: block;
}
html.dark-mode .sun-icon {
    display: none;
}

#back-to-top {
    display: none; /* Hidden by default, JS will manage this */
    position: fixed;
    bottom: 10px;
    right: 10px;
    z-index: 999;
    margin: 0;
    width: 50px;
    height: 50px;
    padding: 0;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
}

#back-to-top svg {
    stroke: var(--button-text-color);
}

/* Login Page Specific Styles */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.login-page .container {
    background-color: rgba(255, 255, 255, 0.8); /* Translucent white */
    margin: 0; /* Override default margin for flexbox centering */

}

html.dark-mode .login-page .container {
    background-color: rgba(62, 48, 52, 0.8); /* Translucent dark purple */
}

@media (max-width: 768px) {
    .container {
        padding: 15px;     
    }
    .login-page .container {
        width: 80%;
    }

    h1 { font-size: 2.3em; }
    h2 { font-size: 1.1em; }

    .note-content pre { font-size: 1.1em; }
}

@media (min-width: 769px) {
    .daily-letter-middle {
        flex-grow: 2; /* Give more space to the envelope on larger screens */
    }
}

@media (max-width: 600px) {
    .main-navigation-button {
        display: block;
        width: 100%;
        margin-left: auto;
        margin-right: auto;
        margin-bottom: 15px;
    }
    .main-navigation-button + .main-navigation-button {
        margin-left: auto;
    }
    .floating-nav {
        width: 90%;
    }
    .nav-button {
        padding: 8px 10px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2.3em;
    }
    .main-navigation-button {
        font-size: 1em;
        padding: 15px 15px;
    }
}

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

.background-heart {
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: var(--h1-color);
    transform: rotate(-45deg);
    animation: fall 10s linear infinite;
}

.background-heart::before,
.background-heart::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: var(--h1-color);
    border-radius: 50%;
}

.background-heart::before {
    top: -10px;
    left: 0;
}

.background-heart::after {
    top: 0;
    left: 10px;
}

@keyframes fall {
    0% {
        transform: translateY(-100px) rotate(-45deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(-45deg);
        opacity: 0;
    }
}

.letter-media-container {
    margin-bottom: 20px;
}

.letter-media {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 0 10px var(--box-shadow-color);
}

/* Ensure audio player spans the container width and has a minimum height */
audio.letter-media {
    width: 100%;
    min-height: 50px; /* Add a minimum height to prevent collapsing */
}


.envlope-wrapper {
  padding: 5vh 0;
  transition: padding 0.3s ease-in-out;
}

/* Modal styles */
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1001; /* Sit on top */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--container-bg-color);
    margin: 15% auto; /* 15% from the top and centered */
    padding: 20px;
    border: 1px solid var(--border-color);
    width: 80%; /* Could be more or less, depending on screen size */
    max-width: 600px;
    border-radius: 20px;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
    position: relative;
}

.close-button {
    color: var(--text-color);
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close-button:hover,
.close-button:focus {
    color: var(--h1-color);
    text-decoration: none;
    cursor: pointer;
}

/* Preview Modal Specific Styles */
#preview-modal .modal-content {
    max-height: 80vh;
    overflow-y: auto;
}

#preview-content {
    text-align: left;
}

#preview-media-container {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
}

/* Profile Picture and Menu */
.profile-container {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1001;
}

.profile-picture {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--border-color);
}

.profile-menu {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    background-color: var(--container-bg-color);
    border-radius: 10px;
    box-shadow: 0 0 10px var(--box-shadow-color);
    padding: 10px;
    width: 200px;
}

.profile-menu.show {
    display: block;
}

.profile-menu a {
    display: block;
    padding: 10px;
    color: var(--text-color);
    text-decoration: none;
}

.profile-menu a:hover {
    background-color: var(--bg-color);
}

.theme-switch {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px;
}

/* Floating Navigation Bar */
.floating-nav {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    transition: transform 0.3s ease-in-out;
    display: flex;
    gap: 10px;
    background-color: var(--container-bg-color);
    border-radius: 50px;
    padding: 10px;
    box-shadow: 0 4px 12px var(--box-shadow-color);
    z-index: 1000;
    width: 50%;
    max-width: 600px;
    min-width: 288px;
}

.nav-button {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px 20px;
    border-radius: 50px;
    text-decoration: none;
    color: var(--text-color);
    transition: background-color 0.3s;
    cursor: pointer;
    margin-bottom: 0;
    min-width: 83px;
}

.nav-button svg {
    width: 24px;
    height: 24px;
    stroke: var(--text-color);
    margin-bottom: 4px;
}

.nav-button span {
    font-size: 0.8em;
}

.nav-button:hover {
    background-color: var(--bg-color);
}

/* Theme switch styles */
.switch {
    position: relative;
    display: inline-block;
    width: 44px; /* smaller width */
    height: 24px; /* smaller height */
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 24px; /* adjusted for smaller height */
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px; /* smaller handle */
    width: 18px; /* smaller handle */
    left: 3px; /* adjusted position */
    bottom: 3px; /* adjusted position */
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--button-bg-color);
}

input:checked + .slider:before {
    transform: translateX(20px); /* adjusted for smaller width */
}

.body-envelope {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    margin: 0;
}

.daily-letter-layout {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    height: 100%;
}

.daily-letter-top {
    flex: 0 0 auto; /* Header section, doesn't grow or shrink */
    padding-top: 100px;
    text-align: center;
}

.daily-letter-middle {
    flex-grow: 1; /* Middle section, takes up remaining space */
    display: flex;
    flex-direction: column;
    justify-content: flex-start; /* Align to the top */
    align-items: center;
    position: relative;
    overflow: hidden; /* Prevent content from spilling */
    padding-top: 2vh; /* Control space from header */
}

.text-container {
    height: 50px;
    margin-bottom: 15%;
}

.zoom-text, .tap-text {
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.zoom-text.show, .tap-text.show {
    opacity: 1;
}

#envelope.zoom-in {
    animation: zoomIn 1s 1s both, pulse 2s 2.5s infinite;
}

@keyframes zoomIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.letter-view {
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    padding: 20px;
    max-width: 800px;
    width: 90%;
    box-sizing: border-box;
    text-align: center;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--container-bg-color);
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    z-index: 1050;
    max-height: 90vh;
    overflow-y: auto;
}

.letter-view.show {
    display: block;
    opacity: 1;
}

.letter-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 20px;
}

.favorite-button {
    background-color: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    transition: background-color 0.3s;
}

.favorite-button:hover {
    background-color: var(--button-hover-bg-color);
}

.favorite-button .heart-icon {
    width: 30px;
    height: 30px;
}

.heart-icon {
    stroke: var(--text-color);
    fill: none;
    transition: fill 0.3s, stroke 0.3s;
}

.favorite-button.favorited .heart-icon {
    fill: var(--h1-color);
    stroke: var(--h1-color);
}

.close-full-screen {
    background-color: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    transition: background-color 0.3s;
}

.close-full-screen:hover {
    background-color: var(--button-hover-bg-color);
}

.close-full-screen svg {
    width: 30px;
    height: 30px;
    stroke: var(--text-color);
}

.reply-button {
    background-color: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    transition: background-color 0.3s;
}

.reply-button:hover {
    background-color: var(--button-hover-bg-color);
}

.reply-button svg {
    width: 30px;
    height: 30px;
    stroke: var(--text-color);
}

/* Reply container styles */
.reply-container {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.5s ease-in-out;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}

.reply-container.show {
    grid-template-rows: 1fr;
}

.reply-container > div {
    overflow: hidden;
}

#reply-textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--input-border-color);
    border-radius: 20px;
    background-color: var(--input-bg-color);
    color: var(--text-color);
    font-family: var(--font-family-base);
    font-size: 1em;
    box-sizing: border-box;
    resize: vertical;
    min-height: 100px;
    margin-top: 20px;
    margin-bottom: 10px;
}

#send-reply-button {
    margin-top: 10px;
}


/* Memories Timeline Styles */
.memories-container {
    background-color: transparent;
    box-shadow: none;
}

/* #timeline-container {
    position: relative;
    margin: 40px auto;
    padding: 40px 0;
    max-width: 700px;
} */

/* #timeline-container::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--border-color);
    z-index: 1;
}

#timeline-container::after {
    content: '';
    position: absolute;
    left: 50%;
    top: -5px;
    transform: translateX(-50%);
    width: 12px;
    height: 12px;
    background-color: var(--h1-color);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--h1-color), 0 0 15px var(--h1-color);
    z-index: 2;
} */

.timeline-card {
    position: relative;
    background-color: var(--card-bg-color);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 4px 12px var(--box-shadow-color);
    cursor: pointer;
    transition: all 0.3s ease-in-out;
    z-index: 2;
    border: 1px solid var(--border-color);
}

.timeline-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--box-shadow-color);
}

.timeline-card.expanded {
    box-shadow: 0 0 20px var(--h1-color);
    border-color: var(--h1-color);
}

.timeline-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.timeline-card-date {
    font-size: 1.1em;
    font-weight: bold;
    color: var(--h2-color);
    text-align: center;
    flex-grow: 1;
}

.timeline-card-snippet {
    font-family: 'Dancing Script', cursive;
    font-size: 1.3em;
    text-align: center;
    color: var(--text-color);
    padding: 0 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.timeline-card-favorite {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: background-color 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timeline-card-favorite:hover {
    background-color: var(--button-hover-bg-color);
}

.timeline-card-favorite .heart-icon {
    width: 24px;
    height: 24px;
    stroke: var(--text-color);
    fill: none;
    transition: fill 0.3s, stroke 0.3s;
}

.timeline-card-favorite.favorited .heart-icon {
    fill: var(--h1-color);
    stroke: var(--h1-color);
}

.timeline-card-content {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.5s ease-in-out;
}

.timeline-card-content-inner {
    overflow: hidden;
}

.timeline-card.expanded .timeline-card-content {
    grid-template-rows: 1fr;
    padding-top: 20px;
}

.timeline-card.expanded .timeline-card-snippet {
    display: none;
}

.timeline-card-content .letter-media-container {
    margin-bottom: 20px;
}

.timeline-card-content .note-content pre {
    font-size: 1.3em;
}

#timeline-error {
    color: var(--error-color);
}

.header-with-button {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.header-with-button h1 {
    margin: 0;
}

.icon-button {
    background: transparent;
    border: none;
    cursor: pointer;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    transition: background-color 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 10px;
    padding: 0;
}

.icon-button:hover {
    background-color: var(--button-hover-bg-color);
}

.icon-button svg {
    stroke: var(--text-color);
    width: 28px;
    height: 28px;
}

/* Filter Modal Styles */
.filter-options {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 20px 0;
    text-align: left;
}

.filter-group, .switch-container {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}

.filter-group label {
    flex-basis: 150px; /* Align labels */
    text-align: right;
    margin-bottom: 10px;
}

.filter-group select, .filter-group input[type="date"] {
    flex-grow: 1;
    padding: 8px;
    border-radius: 20px;
    border: 1px solid var(--input-border-color);
    background-color: var(--input-bg-color);
    color: var(--text-color);
}

.date-range-inputs {
    display: flex;
    flex-grow: 1;
    align-items: center;
    gap: 10px;
}

.filter-group-toggles {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding-top: 10px;
}

.switch-container {
    gap: 10px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 30px;
}

@media (max-width: 768px) {
    .modal-content {
        width: 80%;
        margin: 10% auto;
    }

    .filter-group {
        /* flex-direction: column; */
        align-items: stretch;
        gap: 10px;
        /* margin-bottom: 10px; */
    }

    .filter-group label {
        text-align: left;
        margin-bottom: 5px;
    }

    .date-range-inputs {
        flex-direction: column;
        gap: 10px;
    }

    .filter-group-toggles {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .modal-actions {
        justify-content: center;
    }
}

/* To remove it globally for all elements */
* {
  -webkit-tap-highlight-color: transparent;
}

/* Settings Page Styles */
.settings-page .form-group {
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.settings-page .form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--input-border-color);
    border-radius: 50px;
    background-color: var(--input-bg-color);
    color: var(--text-color);
    font-family: var(--font-family-base);
    font-size: 1em;
    box-sizing: border-box;
    text-align: center;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.settings-page select.form-control {
    padding-right: 30px; /* space for arrow */
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
}
html.dark-mode .settings-page select.form-control {
     background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23e9e6f2' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
}

.settings-page input[type="time"]::-webkit-calendar-picker-indicator {
    filter: invert(var(--webkit-indicator-invert));
}

/* Envelope styles, merged from envelope.css */
#envelope {
    position: relative;
    width: 280px;
    height: 180px;
    border-bottom-left-radius: 6px;
    border-bottom-right-radius: 6px;
    margin-left: auto;
    margin-right: auto;
    top: 50px;
    background-color: var(--h1-color);
    box-shadow: 0 4px 20px var(--box-shadow-color);
}
.front {
    position: absolute;
    width: 0;
    height: 0;
    z-index: 3;
}
.flap {
    border-left: 140px solid transparent;
    border-right: 140px solid transparent;
    border-bottom: 82px solid transparent;
    border-top: 98px solid var(--h1-color);
    transform-origin: top;
    pointer-events: none;
}
.pocket {
    border-left: 140px solid var(--button-bg-color);
    border-right: 140px solid var(--button-bg-color);
    border-bottom: 90px solid var(--h1-color);
    border-top: 90px solid transparent;
    border-bottom-left-radius: 6px;
    border-bottom-right-radius: 6px;
}
.letter {
    position: relative;
    background-color: var(--container-bg-color);
    width: 90%;
    margin-left: auto;
    margin-right: auto;
    height: 90%;
    top: 5%;
    border-radius: 6px;
    box-shadow: 0 2px 26px var(--box-shadow-color);
}
.letter:after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-image:
        linear-gradient(180deg,
        rgba(255,255,255,0.00) 25%,
        rgba(215,227,239,0.70) 55%,
        rgba(215,227,239,1.00) 100%);
}
.words {
    position: absolute;
    left: 10%;
    width: 80%;
    height: 14%;
    background-color: var(--bg-color);
}
.words.line1 { top: 15%; width: 20%; height: 7%; }
.words.line2 { top: 30%; }
.words.line3 { top: 50%; }
.words.line4 { top: 70%; }

#envelope.open .flap {
    transform: rotateX(180deg);
    transition: transform 0.4s ease, z-index 0.6s;
    z-index: 1;
}
#envelope.close .flap {
    transform: rotateX(0deg);
    transition: transform 0.4s 0.6s ease, z-index 1s;
    z-index: 5;
}
#envelope.close .letter {
    transform: translateY(0px);
    transition: transform 0.4s ease, z-index 1s;
    z-index: 1;
}
#envelope.open .letter {
    transform: translateY(-60px);
    transition: transform 0.4s 0.6s ease, z-index 0.6s;
    z-index: 2;
}

.hearts {
    position: absolute;
    top: 90px;
    left: 0;
    right: 0;
    z-index: 2;
}
.heart {
    position: absolute;
    bottom: 0;
    right: 10%;
    pointer-events: none;
}
.heart:before,
.heart:after {
    position: absolute;
    content: "";
    left: 50px;
    top: 0;
    width: 50px;
    height: 80px;
    background: #D00000;
    border-radius: 50px 50px 0 0;
    transform: rotate(-45deg);
    transform-origin: 0 100%;
}
.heart:after {
    left: 0;
    transform: rotate(45deg);
    transform-origin: 100% 100%;
}
#envelope.close .heart {
    opacity: 0;
    animation: none;
}
.a1 {
    left: 20%;
    transform: scale(0.6);
    opacity: 1;
    animation: slideUp 4s linear 1, sideSway 2s ease-in-out 4 alternate;
    animation-fill-mode: forwards;
    animation-delay: .7s;
}
.a2 {
    left: 55%;
    transform: scale(1);
    opacity: 1;
    animation: slideUp 5s linear 1, sideSway 4s ease-in-out 2 alternate;
    animation-fill-mode: forwards;
    animation-delay: .7s;
}
.a3 {
    left: 10%;
    transform: scale(0.8);
    opacity: 1;
    animation: slideUp 7s linear 1, sideSway 2s ease-in-out 6 alternate;
    animation-fill-mode: forwards;
    animation-delay: .7s;
}

@keyframes slideUp {
    0% { top: 0; }
    100% { top: -600px; }
}
@keyframes sideSway {
    0% { margin-left: 0px; }
    100% { margin-left: 50px; }
}

/* Disable transitions for initial state rendering */
#envelope.no-transition .flap,
#envelope.no-transition .letter {
    transition: none;
}