:root {
    /* Existing gradients */
    --brand-primary: #2A80C9; /* Dark blue from logo */
    --brand-secondary: #33C9C9; /* Teal from logo */
    --brand-gradient: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0) 100%);
    --brand-post-gradient: linear-gradient(135deg, #2A80C9 0%, #33C9C9 100%);

    /* NEW: Additional gradients for variety */
    --gradient-2: linear-gradient(135deg, #FF6F61 0%, #DE4467 100%); /* Coral to Rose */
    --gradient-3: linear-gradient(135deg, #8A2BE2 0%, #4B0082 100%); /* Blue Violet to Indigo */
    --gradient-4: linear-gradient(135deg, #FFD700 0%, #FFA500 100%); /* Gold to Orange */
    --gradient-5: linear-gradient(135deg, #4CAF50 0%, #66BB6A 100%); /* Green shades */
}

/* CHAT INPUT GLOW */
#message-form-container {
    padding: 0.75rem;
    flex-shrink: 0;
    background-color: transparent;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 50;
    padding-bottom: calc(env(safe-area-inset-bottom) + 0.5rem);
}

#message-form {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    padding-left: 1.25rem;
    background-color: #ffffff !important; 
    border: 1px solid #e5e7eb;
    border-radius: 9999px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05), 
                0 0 0 1px rgba(0,0,0,0.02);
    transition: transform 0.1s ease;
}

#message-form:focus-within {
     box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1),
                0 0 20px rgba(51, 201, 201, 0.6);
}

#message-input {
    background-color: transparent;
    border: none;
    outline: none;
    flex-grow: 1;
    font-size: 1rem;
    color: #1f2937;
    min-width: 0;
}

#message-input::placeholder {
    color: #9ca3af;
}

/* FLOATING CARD STYLE */
#my-upters-content .content-wrapper {
    background-color: #f0f2f5;
    padding: 0.75rem;
}

.upter-card {
    background-color: white;
    border-radius: 1rem;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
    transition: transform 0.2s ease-in-out;
    cursor: pointer;
    overflow: visible !important;
    position: relative;
}
.upter-card:hover {
    transform: translateY(-3px);
}

.upter-card-title {
    font-weight: 700;
    font-size: 1.125rem;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.upter-card-info-line {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
    color: #6b7280;
    margin-top: 0.75rem;
    border-top: 1px solid #f3f4f6;
    padding-top: 0.75rem;
}
.upter-card-info-line span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.upter-card-status {
    font-weight: 600;
}
.upter-card-status.expired {
    color: #6b7280;
}
.upter-card-status.cancelled {
    color: #dc2626;
}

.upter-icon {
    color: var(--brand-primary);
}

/* GLOBAL LAYOUT */
html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
    position: fixed;
    overscroll-behavior: none;
    font-family: 'Inter', sans-serif; 
    background-color: #ffffff;
}

.app-container { 
    width: 100%; 
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden; 
    position: relative; 
    display: flex; 
    flex-direction: column; 
    background-color: #ffffff;
}

.screen { 
    width: 100%; 
    max-width: 450px;
    margin: 0 auto;
    height: 100%;
    position: relative; 
    top: 0; 
    left: 0; 
    right: 0;
    display: flex; 
    flex-direction: column; 
    background-color: #f9fafb; 
    box-sizing: border-box; 
    z-index: 5; 
    opacity: 1; 
    transition: opacity 0.2s ease-in-out;
    padding-bottom: env(safe-area-inset-bottom);
}

#bottom-navigation-area {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    max-width: 450px;
    margin: 0 auto;
    padding-bottom: env(safe-area-inset-bottom);
    pointer-events: none;
}

#chat-screen {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
    overflow: hidden;
    position: relative;
    background-color: #f0f2f5; 
}

.main-view.hidden { opacity: 0; pointer-events: none; z-index: -1; }
#main-app-shell { z-index: 10; }
.main-view { width: 100%; height: 100%; padding-bottom: 70px; overflow-y: auto; display: flex; flex-direction: column; }

#upterme-screen, #my-upters-screen { 
    display: flex; 
    flex-direction: column;
    background-color: #f0f2f5;
}

/* FEED STYLES */
.upter-empty-state-card {
    background-color: white;
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    color: #4b5563;
    margin-bottom: 1rem;
}

.upter-empty-state-card img {
    width: 6rem;
    height: 6rem;
    opacity: 0.3;
    margin: 0 auto 1rem auto;
}

.upter-empty-state-card h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.feed-container { 
    width: 100%; 
    flex-grow: 1; 
    overflow-y: scroll; 
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: y mandatory;
}
        
.upter-post {
    width: 100%;
    height: 100%;
    flex-shrink: 0;
    scroll-snap-align: start;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem;
    box-sizing: border-box;
}

.post-overlay {
    padding: 1.5rem; 
}

.card-header {
    padding: 1rem;
}

.card-category-tag {
    display: inline-block;
    background-color: #eef2ff;
    color: #4338ca;
    text-transform: uppercase;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    margin-bottom: 0.5rem;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
    margin-bottom: 0.5rem;
}

.card-author-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-author-info img {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.5rem;
    border: 2px solid #f3f4f6;
}

.card-author-name {
    font-weight: 600;
}

.card-image-placeholder {
    height: 180px;
    background-size: cover;
    background-position: center;
    margin: 1rem 1rem 0 1rem;
    border-radius: 0.75rem;
    width: auto;
}

.card-details-section {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    border-bottom: 1px solid #f3f4f6;
}

.card-detail-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    color: #374151;
}

.card-detail-item svg {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--brand-primary);
}

.card-timer-container-small {
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feed-timer-svg-small {
    width: 40px;
    height: 40px;
    transform: rotate(-90deg);
    flex-shrink: 0;
}
.feed-timer-svg-small circle {
    fill: none;
    stroke-width: 5;
}
.feed-timer-svg-small .feed-timer-svg-bg {
    stroke: #e5e7eb;
}
.feed-timer-svg-small .feed-timer-svg-progress {
    stroke: var(--brand-primary);
    stroke-linecap: round;
    transition: stroke-dashoffset 1s linear;
}
.feed-timer-text-small {
    font-weight: 600;
    line-height: 1.2;
}
.feed-timer-text-small .timer-label-small {
    font-size: 0.75rem;
    color: #6b7280;
}
.feed-timer-text-small .timer-time-small {
    font-size: 0.875rem;
    color: #1f2937;
}

.upter-card-wrapper .card-detail-item.placeholder {
    color: rgba(255, 255, 255, 0.7) !important;
    font-style: italic;
}

.upter-card-wrapper {
    background-color: white;
    border-radius: 1rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    color: #1f2937;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 420px;
    max-height: 95%;
    padding-top: 112px;
    padding-bottom: 96px;
}
.card-button-container {
    padding: 1rem;
}

.feed-join-button {
    margin-top: 0;
}

/* NAVIGATION */
.bottom-nav {
    pointer-events: auto;
    position: absolute;
    bottom: 1.5rem;
    left: 1rem;
    display: flex;
    justify-content: center; 
    align-items: center;
    gap: 1rem;
    height: auto;
    width: auto;
    padding: 0.75rem 1rem;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 9999px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.7);
    z-index: 20;
}
.nav-item { position: relative; }
.notification-dot { position: absolute; top: 2px; right: 15px; width: 8px; height: 8px; background-color: #ef4444; border-radius: 50%; border: 1px solid white;}

.bottom-nav .nav-item { 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    justify-content: center; 
    font-size: 0.70rem; 
    color: #6b7280; 
    cursor: pointer;
    width: 60px;
    height: 50px;
}
.bottom-nav .nav-item.active { color: var(--brand-primary); }
.bottom-nav .nav-item svg { width: 1.5rem; height: 1.5rem; margin-bottom: 2px; }

/* AUTH SCREEN */
.auth-screen { justify-content: center; align-items: center; padding: 2rem; }
.auth-card { width: 100%; max-width: 400px; padding: 2rem; background-color: white; border-radius: 1.5rem; box-shadow: 0 10px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04); }
.input-field {
    -webkit-appearance: none;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    transition: border-color 0.2s;
    background-color: #f9fafb;
}
.input-field:focus { border-color: var(--brand-primary); outline: none; box-shadow: 0 0 0 2px rgba(42, 128, 201, 0.2); }
.input-field:disabled { background-color: #f3f4f6; cursor: not-allowed; }

.screen-header { 
    flex-shrink: 0; 
    display:flex; 
    align-items:center; 
    justify-content:center; 
    position:relative; 
    padding: 1rem 1.25rem; 
    border-bottom: 1px solid #e5e7eb; 
    font-weight: 600; 
    font-size: 1.125rem; 
    text-align: center; 
    background-color: white; 
    color: #111827; 
}

.content-wrapper { flex-grow: 1; overflow-y: auto; padding: 1.5rem; }
#profile-screen .content-wrapper, #iamup2-screen .content-wrapper, #messages-screen, #chat-screen .content-wrapper, #manage-screen .content-wrapper { padding: 0; }

/* CHAT BUBBLES */
.chat-bubble {
    max-width: 75%;
    width: fit-content;
    padding: 0.75rem 1rem;
    border-radius: 1.25rem;
    word-wrap: break-word;
}
.chat-bubble.sent {
    background-color: var(--brand-primary);
    color: white;
    align-self: flex-end;
}
.chat-bubble.received {
    background-color: #e5e7eb;
    color: #1f2937;
    align-self: flex-start;
}

/* DURATION OPTIONS */
.duration-option {
    border: 2px solid #e5e7eb;
    transition: all 0.2s ease-in-out;
    background-color: #ffffff;
    color: #4b5563;
}
.duration-option:hover {
    background-color: #f9fafb;
    border-color: #d1d5db;
}
.duration-option.selected {
    border-color: var(--brand-primary);
    background-color: #eff6ff;
    color: var(--brand-primary);
    box-shadow: 0 0 0 1px var(--brand-primary);
}
.duration-option p:first-child { font-weight: 600; }
.duration-option p:last-child { font-size: 0.75rem; color: #6b7280; }
.duration-option.selected p:last-child { color: var(--brand-primary); opacity: 0.8; }

#messages-screen { overflow-y: hidden; }
.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background-color: rgba(0,0,0,0.6); display: flex; justify-content: center; align-items: center; z-index: 1000; }

/* TABS */
.tab-button { flex: 1; padding: 0.75rem; text-align: center; font-weight: 600; color: #6b7280; border-bottom: 2px solid transparent; cursor: pointer; position: relative; z-index: 10; }
.tab-button.active { 
    color: var(--brand-primary); 
    border-bottom-color: var(--brand-primary); 
    background-color: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    z-index: 2;
    border-top-left-radius: 0.5rem; 
    border-top-right-radius: 0.5rem;
}

.audience-tag { background-color: #eef2ff; color: #4338ca; border-radius: 9999px; padding: 4px 10px; font-size: 0.875rem; font-weight: 500; display: inline-flex; align-items: center; margin: 2px; }
.audience-tag button { margin-left: 6px; color: #6366f1; background: none; border: none; cursor: pointer; }
#qrcode-container img { width: 60px; height: 60px; }
details > summary { list-style: none; }
details > summary::-webkit-details-marker { display: none; }
@keyframes highlight-new-message { 0% { background-color: #d1fae5; } 100% { background-color: #e5e7eb; } }
.new-message-highlight { animation: highlight-new-message 1.5s ease-out; }

.toggle-switch { position: relative; display: inline-block; width: 50px; height: 28px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; transition: .4s; border-radius: 28px; }
.toggle-slider:before { position: absolute; content: ""; height: 20px; width: 20px; left: 4px; bottom: 4px; background-color: white; transition: .4s; border-radius: 50%; }
input:checked + .toggle-slider { background-color: var(--brand-primary); }
input:checked + .toggle-slider:before { transform: translateX(22px); }

.btn-primary { background-color: var(--brand-primary); color: white; transition: background-color 0.2s; }
.btn-primary:hover { background-color: var(--brand-secondary); }

.archive-group-header {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #4b5563;
    background-color: #f3f4f6;
    border-top: 1px solid #e5e7eb;
    border-bottom: 1px solid #e5e7eb;
}
.archive-card {
    background-color: white;
    border-radius: 0.75rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}
.archive-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.05), 0 2px 4px rgba(0,0,0,0.03);
}
.details-summary-button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: #f9fafb;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: background-color 0.2s;
}
.details-summary-button:hover { background-color: #f3f4f6; }
.details-summary-button svg { transition: transform 0.3s; }
details[open] > .details-summary-button svg { transform: rotate(90deg); }

.friend-context-menu {
    position: absolute;
    right: 0;
    top: 2.5rem;
    background-color: white;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    z-index: 10;
    overflow: hidden;
    width: 160px;
}
.friend-context-menu-item {
    display: block;
    width: 100%;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    text-align: left;
    color: #374151;
}
.friend-context-menu-item:hover { background-color: #f3f4f6; }

.archive-accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 0.75rem;
    cursor: pointer;
    transition: background-color 0.2s;
    font-weight: 600;
    color: #374151;
    margin-top: 1rem;
}
.archive-accordion-header:hover { background-color: #f3f4f6; }
.archive-accordion-header .chevron-icon { transition: transform 0.3s; }
details[open] > .archive-accordion-header .chevron-icon { transform: rotate(90deg); }

.chat-screen-header {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #e5e7eb;
    background-color: white;
    color: #111827;
    min-height: 56px;
    flex-shrink: 0;
    z-index: 50;
}

#message-list {
    flex-grow: 1;
    overflow-y: auto;
    overflow-x: hidden;
    scroll-behavior: smooth;
    padding-bottom: 10px;
    display: flex;
    flex-direction: column;
    background: linear-gradient(to bottom, #ffffff, #f3f4f6);
}
.chat-screen-header .title {
    font-weight: 600;
    font-size: 1.125rem;
    text-align: center;
    flex-grow: 1;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    padding: 0 48px;
}
.chat-screen-header .action-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}
.chat-screen-header .left-button { position: absolute; left: 8px; }
.chat-screen-header .right-button { position: absolute; right: 8px; }

.chat-bubble.sent .chat-link { color: #ffffff; font-weight: 600; text-decoration: underline; }
.chat-bubble.received .chat-link { color: #1d4ed8; text-decoration: underline; }
.chat-link:hover { text-decoration-thickness: 2px; }

.logo-on-dark-bg { filter: brightness(0) invert(1); }
.logo-on-light-bg { filter: brightness(0.6); }

#nav-create {
    pointer-events: auto;
    position: absolute;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 25;
    cursor: pointer;
}

#nav-create > div {
    transition: all 0.2s ease-in-out;
    animation: pulseGlow 2.5s infinite alternate ease-in-out;
}
#nav-create:hover > div {
    background-color: var(--brand-secondary);
    transform: scale(1.05);
}

@keyframes pulseGlow {
  from { box-shadow: 0 0 15px rgba(51, 201, 201, 0.4), 0 4px 10px rgba(0, 0, 0, 0.1); }
  to { box-shadow: 0 0 25px rgba(51, 201, 201, 0.7), 0 4px 15px rgba(0, 0, 0, 0.15); }
}

html[lang="el"] #duration-options .duration-option[data-duration="10080"] {
    padding-left: 0.25rem; padding-right: 0.25rem; font-size: 0.8rem;
}

.join-chat-btn { animation: subtlePulse 3s infinite alternate ease-in-out; }
@keyframes subtlePulse {
  from { box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); }
  to { box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15); }
}

/* NEW FEED CARD STYLES */
.upter-card-wrapper {
    color: white;
    background: var(--gradient-3);
}
.card-image-placeholder { display: none; }
.upter-card-wrapper .card-title,
.upter-card-wrapper .card-author-name,
.upter-card-wrapper .card-detail-item,
.upter-card-wrapper .feed-timer-text-small .timer-time-small {
    color: white !important;
}
.upter-card-wrapper .card-detail-item svg,
.upter-card-wrapper .feed-timer-text-small .timer-label-small {
    color: rgba(255, 255, 255, 0.8) !important;
}
.upter-card-wrapper .card-details-section { border-bottom-color: rgba(255, 255, 255, 0.2); }
.upter-card-wrapper .feed-timer-svg-small .feed-timer-svg-bg { stroke: rgba(255, 255, 255, 0.3); }
.upter-card-wrapper .feed-timer-svg-small .feed-timer-svg-progress { stroke: var(--brand-primary); }

.feed-timer-svg {
    position: absolute; top: 2.5rem; left: 1.5rem; width: 100px; height: 100px; z-index: 10;
    transform: rotate(-90deg);
}
.feed-timer-svg circle { fill: none; stroke-width: 8; }
.feed-timer-svg-bg { stroke: rgba(0, 0, 0, 0.3); }
.feed-timer-svg-progress { stroke: var(--brand-primary); stroke-linecap: round; transition: stroke-dashoffset 1s linear; }
.feed-timer-text {
    position: absolute; top: 2.5rem; left: 1.5rem; width: 100px; height: 100px;
    border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center;
    color: white; text-align: center; font-weight: 600; line-height: 1.3; z-index: 11; padding: 0.5rem;
}
.feed-timer-text .timer-label { font-size: 0.9rem; opacity: 0.8; }
.feed-timer-text .timer-time { font-size: 1.25rem; }

.feed-join-button {
    display: block; width: 100%; padding: 1rem; margin-top: 1.5rem;
    background-color: var(--brand-primary); color: white; border: none; border-radius: 9999px;
    font-size: 1.125rem; font-weight: 700; text-align: center; cursor: pointer;
    transition: all 0.2s ease-in-out; display: flex; align-items: center; justify-content: center;
    gap: 0.5rem; box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}
.feed-join-button:hover { transform: scale(1.02); box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15); }
.feed-join-button.joined { background-color: #28a745; transform: scale(1.05); }

.quick-date-btn.selected {
    border-color: var(--brand-primary);
    background-color: #eff6ff;
    color: var(--brand-primary);
    font-weight: 600;
}

/* MY UPTERS CARDS */
.card-tag { font-size: 0.65rem; font-weight: 700; text-transform: uppercase; padding: 0.25rem 0.5rem; border-radius: 0.375rem; display: inline-block; letter-spacing: 0.025em; }
.tag-creator { background-color: #dbeafe; color: #2563eb; }
.tag-spontaneous { background-color: #ffedd5; color: #ea580c; }
.tag-soon { background-color: #e0e7ff; color: #4f46e5; }
.tag-scheduled { background-color: #f3e8ff; color: #7e22ce; }

.card-status-bar {
    width: 100%; padding: 0.75rem; font-size: 0.875rem; font-weight: 600;
    display: flex; align-items: center; justify-content: center; gap: 0.5rem;
    border-bottom-left-radius: 1rem; border-bottom-right-radius: 1rem;
}
.status-bar-green { background-color: #ecfdf5; color: #059669; border-top: 1px solid #d1fae5; }
.status-bar-yellow { background-color: #fefce8; color: #ca8a04; border-top: 1px solid #fef9c3; }

.manage-card-title { font-size: 1.125rem; font-weight: 700; color: #111827; margin-top: 0.5rem; margin-bottom: 0.25rem; }
.manage-card-info { display: flex; align-items: center; gap: 1rem; font-size: 0.875rem; color: #6b7280; margin-top: 0.75rem; }

.feed-category-pill {
    display: inline-block; font-size: 0.7rem; font-weight: 800; text-transform: uppercase;
    padding: 0.35rem 0.85rem; border-radius: 9999px; letter-spacing: 0.05em;
}
.pill-spontaneous { background-color: #ffedd5; color: #ea580c; }
.pill-soon { background-color: #dbeafe; color: #2563eb; }
.pill-scheduled { background-color: #f3e8ff; color: #7e22ce; }

.scrollbar-hide::-webkit-scrollbar { display: none; }
.scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }

.input-modern {
    background-color: #f9fafb; border: 1px solid transparent; transition: all 0.2s ease;
    padding: 0.75rem 1rem; border-radius: 0.75rem; font-weight: 500; color: #111827;
}
.input-modern:focus { background-color: #ffffff; border-color: var(--brand-primary); box-shadow: 0 0 0 3px rgba(42, 128, 201, 0.1); outline: none; }

.profile-header-bg {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
    padding-bottom: 3rem; border-bottom-left-radius: 2rem; border-bottom-right-radius: 2rem;
}
.stat-card {
    background: white; border-radius: 1rem; box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.05);
    display: flex; justify-content: space-around; padding: 1.5rem 0;
    margin-top: -2.5rem; margin-left: 1.5rem; margin-right: 1.5rem; position: relative; z-index: 10;
}
.menu-item-modern {
    display: flex; align-items: center; padding: 1rem; background: white; border-bottom: 1px solid #f3f4f6; transition: background-color 0.2s;
}
.menu-item-modern:first-child { border-top-left-radius: 1rem; border-top-right-radius: 1rem; }
.menu-item-modern:last-child { border-bottom-left-radius: 1rem; border-bottom-right-radius: 1rem; border-bottom: none; }
.menu-item-modern:active { background-color: #f9fafb; }
.menu-icon-box {
    width: 2.5rem; height: 2.5rem; border-radius: 0.75rem; display: flex; align-items: center; justify-content: center; margin-right: 1rem;
}

.pill-tabs-container {
    background-color: #f3f4f6; padding: 0.25rem; border-radius: 0.75rem; display: flex; margin-bottom: 1rem;
}
.pill-tab {
    flex: 1; text-align: center; padding: 0.5rem; font-size: 0.875rem; font-weight: 600;
    border-radius: 0.5rem; color: #6b7280; transition: all 0.2s ease; background-color: transparent;
}
.pill-tab.active { background-color: white; color: #111827; box-shadow: 0 1px 3px rgba(0,0,0,0.1); }

.creation-textarea {
    width: 100%; font-size: 1.125rem; line-height: 1.6; background-color: #f9fafb;
    border: 1px solid #e5e7eb; border-radius: 1rem; padding: 1rem; resize: none;
    font-weight: 500; color: #1f2937; transition: all 0.2s;
}
.creation-textarea:focus { outline: none; background-color: #ffffff; border-color: var(--brand-primary); box-shadow: 0 0 0 4px rgba(42, 128, 201, 0.1); }
.creation-textarea::placeholder { color: #9ca3af; font-weight: 400; }

.duration-card {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 1rem 0.5rem; border-radius: 1rem; background-color: #f9fafb; border: 2px solid transparent;
    cursor: pointer; transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1); position: relative;
}
.duration-card .icon-circle {
    width: 3rem; height: 3rem; border-radius: 50%; background-color: white;
    display: flex; align-items: center; justify-content: center; margin-bottom: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05); transition: transform 0.2s;
}
.duration-card .title { font-weight: 700; font-size: 0.8rem; color: #374151; margin-bottom: 2px; }
.duration-card .subtitle { font-size: 0.65rem; color: #9ca3af; }
.duration-card.selected .icon-circle { transform: scale(1.1); color: white; }

.duration-card[data-duration="60"].selected { background-color: #fff7ed; border-color: #f97316; }
.duration-card[data-duration="60"].selected .icon-circle { background-color: #f97316; }
.duration-card[data-duration="60"].selected .title { color: #c2410c; }

.duration-card[data-duration="240"].selected { background-color: #eff6ff; border-color: #3b82f6; }
.duration-card[data-duration="240"].selected .icon-circle { background-color: #3b82f6; }
.duration-card[data-duration="240"].selected .title { color: #1d4ed8; }

.duration-card[data-duration="10080"].selected { background-color: #faf5ff; border-color: #a855f7; }
.duration-card[data-duration="10080"].selected .icon-circle { background-color: #a855f7; }
.duration-card[data-duration="10080"].selected .title { color: #7e22ce; }

.card-context-menu {
    position: absolute; top: 100%; right: 0; margin-top: 4px; min-width: 140px; z-index: 100;
    background-color: white; border-radius: 0.75rem; box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.15);
    border: 1px solid #f3f4f6; overflow: hidden; transform-origin: top right; animation: menuPop 0.1s ease-out;
}
@keyframes menuPop { from { opacity: 0; transform: scale(0.95) translateY(-5px); } to { opacity: 1; transform: scale(1) translateY(0); } }

.gradient-spontaneous { background: linear-gradient(135deg, #FF6F61 0%, #ee0979 100%); }
.gradient-soon { background: linear-gradient(135deg, #2A80C9 0%, #33C9C9 100%); }
.gradient-scheduled { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }

.feed-container { display: flex; flex-direction: column; height: 100%; }
.upter-empty-state-wrapper {
    flex-grow: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 2rem; background-color: #f0f2f5;
}
.upter-empty-state-card {
    background: white; border-radius: 2rem; padding: 3rem 2rem; text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05); max-width: 300px; width: 100%;
}

.auth-screen {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    display: flex; align-items: center; justify-content: center; padding: 1.5rem; min-height: 100%;
}
.auth-card {
    width: 100%; max-width: 420px; padding: 2.5rem;
    background-color: rgba(255, 255, 255, 0.95); border-radius: 2rem;
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.1); backdrop-filter: blur(10px);
    animation: slideUpFade 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
@keyframes slideUpFade { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

.auth-input {
    width: 100%; padding: 1rem 1.25rem; background-color: #f3f4f6; border: 2px solid transparent;
    border-radius: 1rem; font-size: 1rem; color: #1f2937; transition: all 0.2s; font-weight: 500;
}
.auth-input:focus { background-color: white; border-color: var(--brand-primary); box-shadow: 0 0 0 4px rgba(42, 128, 201, 0.1); outline: none; }

.btn-auth {
    width: 100%; padding: 1rem; border-radius: 1rem; font-weight: 700; font-size: 1.1rem;
    background: linear-gradient(to right, var(--brand-primary), var(--brand-secondary)); color: white;
    box-shadow: 0 10px 20px -5px rgba(42, 128, 201, 0.4); transition: transform 0.2s;
}
.btn-auth:active { transform: scale(0.98); }

.limit-badge {
    position: absolute; top: 8px; right: 8px; font-size: 0.65rem; font-weight: 700;
    padding: 2px 6px; border-radius: 6px; background-color: #f3f4f6; color: #6b7280; border: 1px solid #e5e7eb;
}
.duration-card.selected .limit-badge { background-color: rgba(255,255,255,0.5); color: inherit; border-color: transparent; }
.limit-badge.full { background-color: #fee2e2; color: #ef4444; border-color: #fecaca; }

.upter-card-wrapper.boosted {
    border: 3px solid #fbbf24 !important; box-shadow: 0 0 25px rgba(251, 191, 36, 0.5) !important;
    position: relative; overflow: hidden; transform: scale(1.02); z-index: 10;
}
@keyframes goldPulse {
    0% { box-shadow: 0 0 0 0 rgba(251, 191, 36, 0.7); border-color: #fbbf24; }
    70% { box-shadow: 0 0 0 10px rgba(251, 191, 36, 0); border-color: #f59e0b; }
    100% { box-shadow: 0 0 0 0 rgba(251, 191, 36, 0); border-color: #fbbf24; }
}

.boost-badge {
    background: linear-gradient(to right, #FFD700, #FFA500); color: #78350f;
    font-size: 0.75rem; font-weight: 900; text-transform: uppercase; padding: 4px 10px;
    border-radius: 99px; display: inline-flex; align-items: center; gap: 4px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2); margin-bottom: 8px; animation: bounceBadge 2s infinite;
}
@keyframes bounceBadge { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-3px); } }

.purchase-option-btn {
    display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 1rem;
    margin-bottom: 0.75rem; border: 2px solid #f3f4f6; border-radius: 1rem; background-color: white; transition: all 0.2s;
}
.purchase-option-btn:hover { border-color: var(--brand-primary); background-color: #f0f9ff; }
.purchase-price-tag {
    background-color: #f3f4f6; padding: 0.25rem 0.5rem; border-radius: 0.5rem; font-weight: 700; font-size: 0.85rem; color: #1f2937;
}

.gradient-boost-gold {
    background: linear-gradient(135deg, #fbbf24 0%, #d97706 50%, #b45309 100%) !important;
    box-shadow: 0 10px 30px -5px rgba(245, 158, 11, 0.6), 0 0 20px rgba(251, 191, 36, 0.4) !important;
    border: 2px solid #fde68a !important; z-index: 10; position: relative; overflow: hidden;
}
.gradient-boost-gold::before {
    content: ""; position: absolute; top: 0; left: -100%; width: 50%; height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.4), transparent);
    transform: skewX(-25deg); animation: goldShine 4s infinite; pointer-events: none;
}
@keyframes goldShine { 0% { left: -100%; } 20% { left: 200%; } 100% { left: 200%; } }

.boost-badge-gold {
    background-color: rgba(255, 255, 255, 0.9); color: #92400e; font-weight: 900; font-size: 0.7rem;
    padding: 4px 10px; border-radius: 99px; display: inline-flex; align-items: center; gap: 4px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2); margin-bottom: 8px; animation: bounceBadge 2s infinite;
}

.pro-badge-icon {
    display: inline-flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #FFD700 0%, #FDB931 100%); color: #7c2d12;
    border-radius: 4px; padding: 1px 4px; font-size: 0.6rem; font-weight: 900; margin-left: 6px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1); vertical-align: middle; letter-spacing: 0.5px; border: 1px solid #fce7b2;
}

.activity-badge {
    display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 20px;
    border-radius: 50%; background: #f3f4f6; color: #6b7280; font-size: 10px;
    margin-left: -6px; border: 2px solid white; position: relative; z-index: 1; box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}
.activity-badge:first-child { margin-left: 0; }

.badge-spontaneous { background: #fff7ed; color: #ea580c; border-color: #ffedd5; }
.badge-social { background: #eff6ff; color: #2563eb; border-color: #dbeafe; }
.badge-planner { background: #f3e8ff; color: #7e22ce; border-color: #e9d5ff; }

.insight-card {
    background: white; border-radius: 1rem; padding: 1.25rem; margin-bottom: 1rem;
    border: 1px solid #f3f4f6; box-shadow: 0 2px 5px rgba(0,0,0,0.02);
}
.insight-value { font-size: 1.5rem; font-weight: 800; color: #111827; }
.insight-label { font-size: 0.75rem; color: #6b7280; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; }

.stat-progress-bg { height: 6px; border-radius: 99px; background: #f3f4f6; overflow: hidden; margin-top: 6px; }
.stat-progress-fill { height: 100%; border-radius: 99px; background: var(--brand-primary); }

.upter-card-wrapper .feed-join-button {
    background-color: var(--brand-primary) !important; border: 2px solid transparent !important; transition: all 0.2s ease-in-out;
}
.upter-card-wrapper .feed-join-button span,
.upter-card-wrapper .feed-join-button svg { color: #ffffff !important; }

.upter-card-wrapper .feed-join-button:not(:disabled):hover,
.upter-card-wrapper .feed-join-button:not(:disabled):active {
    background-color: #ffffff !important; border-color: var(--brand-primary) !important; transform: scale(0.98);
}
.upter-card-wrapper .feed-join-button:not(:disabled):hover span,
.upter-card-wrapper .feed-join-button:not(:disabled):active span,
.upter-card-wrapper .feed-join-button:not(:disabled):hover svg,
.upter-card-wrapper .feed-join-button:not(:disabled):active svg { color: var(--brand-primary) !important; }

.upter-card-wrapper .feed-join-button.joined {
    background-color: #ffffff !important; border-color: var(--brand-primary) !important; transform: scale(1);
}
.upter-card-wrapper .feed-join-button.joined span,
.upter-card-wrapper .feed-join-button.joined svg { color: var(--brand-primary) !important; }

.upter-card-wrapper .feed-join-button:disabled {
    background-color: rgba(255, 255, 255, 0.2) !important; border: 1px solid rgba(255, 255, 255, 0.4) !important; cursor: not-allowed;
}
.upter-card-wrapper .feed-join-button:disabled span { color: rgba(255, 255, 255, 0.9) !important; }

.enter-chat-btn {
    position: relative; background-color: white; padding: 1.25rem; border-radius: 1.25rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    border: 1px solid #f3f4f6; margin-bottom: 0.75rem; transition: transform 0.2s ease;
    overflow: hidden; min-height: 180px; display: flex; flex-direction: column; justify-content: space-between;
}
.enter-chat-btn:active { transform: scale(0.98); }

.user-rank-badge {
    display: inline-flex; align-items: center; padding: 2px 6px; margin-left: 6px; border-radius: 6px;
    font-size: 0.65rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.02em;
    background-color: rgba(0, 0, 0, 0.05); color: #6b7280; border: 1px solid rgba(0, 0, 0, 0.05); vertical-align: middle;
}
.user-rank-badge.legend {
    background: linear-gradient(135deg, #FFD700 0%, #FDB931 100%); color: #7c2d12; border: none; box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}


/* Το κοντέινερ του chat item πρέπει να είναι relative */
.chat-item {
    position: relative;
}

/* Το κόκκινο κυκλάκι */
.unread-dot {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 12px;
    height: 12px;
    background-color: #ff3b30; /* Έντονο κόκκινο iOS style */
    border-radius: 50%;
    border: 2px solid white; /* Για να ξεχωρίζει από το φόντο */
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}