@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

:root {
    --bg-gradient-start: #667eea;
    --bg-gradient-end: #764ba2;
    --text-light: #ffffff;
    --text-dark: #333333;
    --text-muted: rgba(255, 255, 255, 0.8);
    --card-bg: rgba(255, 255, 255, 0.1);
    --card-bg-hover: rgba(255, 255, 255, 0.2);
    --card-border: rgba(255, 255, 255, 0.18);
    --primary-accent-start: #ff6a88;
    --primary-accent-end: #ff9a9e;
    --secondary-accent-start: #89f7fe;
    --secondary-accent-end: #66a6ff;
    --header-bg: rgba(255, 255, 255, 0.05);
    --header-border: rgba(255, 255, 255, 0.2);
    --shadow-light: rgba(31, 38, 135, 0.2);
    --shadow-dark: rgba(0, 0, 0, 0.3);
    --input-bg: rgba(0, 0, 0, 0.2);
    --input-placeholder: rgba(255, 255, 255, 0.6);
    --scrollbar-thumb: linear-gradient(45deg, var(--primary-accent-start), var(--primary-accent-end));
    --scrollbar-track: rgba(0, 0, 0, 0.1);
    --preloader-bg: var(--bg-gradient-end);
    --preloader-color: var(--text-light);
    --preloader-wave: var(--primary-accent-start);
    --theme-toggle-bg: rgba(255, 255, 255, 0.2);
    --theme-toggle-hover: rgba(255, 255, 255, 0.4);
    --options-content-bg: rgba(0, 0, 0, 0.15);
    --options-content-border: rgba(255, 255, 255, 0.1);
    --options-content-text: var(--text-muted);
    --options-toggle-bg: rgba(255, 255, 255, 0.1);
    --options-toggle-hover: rgba(255, 255, 255, 0.2);
    --radio-border: var(--text-muted);
    --radio-checked-bg: var(--primary-accent-start);
    --radio-label-hover: var(--text-light);
}

[data-theme="dark"] {
    --bg-gradient-start: #0f172a;
    --bg-gradient-end: #1e293b;
    --text-light: #e2e8f0;
    --text-dark: #f8fafc;
    --text-muted: rgba(148, 163, 184, 0.8);
    --card-bg: rgba(30, 41, 59, 0.5);
    --card-bg-hover: rgba(51, 65, 85, 0.6);
    --card-border: rgba(100, 116, 139, 0.2);
    --primary-accent-start: #38bdf8;
    --primary-accent-end: #0ea5e9;
    --secondary-accent-start: #2dd4bf;
    --secondary-accent-end: #14b8a6;
    --header-bg: rgba(15, 23, 42, 0.6);
    --header-border: rgba(51, 65, 85, 0.3);
    --shadow-light: rgba(0, 0, 0, 0.3);
    --shadow-dark: rgba(0, 0, 0, 0.5);
    --input-bg: rgba(51, 65, 85, 0.7);
    --input-placeholder: rgba(148, 163, 184, 0.6);
    --scrollbar-thumb: linear-gradient(45deg, var(--primary-accent-start), var(--primary-accent-end));
    --scrollbar-track: rgba(15, 23, 42, 0.5);
    --preloader-bg: var(--bg-gradient-start);
    --preloader-color: var(--text-light);
    --preloader-wave: var(--primary-accent-start);
    --theme-toggle-bg: rgba(51, 65, 85, 0.5);
    --theme-toggle-hover: rgba(71, 85, 105, 0.7);
    --options-content-bg: rgba(15, 23, 42, 0.4);
    --options-content-border: rgba(51, 65, 85, 0.4);
    --options-content-text: var(--text-muted);
    --options-toggle-bg: rgba(51, 65, 85, 0.3);
    --options-toggle-hover: rgba(71, 85, 105, 0.5);
    --radio-border: rgba(148, 163, 184, 0.6);
    --radio-checked-bg: var(--primary-accent-start);
    --radio-label-hover: var(--text-light);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    overflow-x: hidden;
    transition: background 0.5s ease, color 0.5s ease;
}

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

#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--preloader-bg);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.6s ease-out, visibility 0.6s ease-out;
}

#preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.water-loader {
    position: relative;
    width: 80px;
    height: 80px;
    margin-bottom: 25px;
}

.water-loader .wave {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: var(--preloader-wave);
    opacity: 0.6;
    animation: wave-animation 2s ease-out infinite;
}

.water-loader .wave:nth-child(2) {
    animation-delay: -1s;
}

@keyframes wave-animation {
    0% { transform: scale(0); opacity: 0.6; }
    50% { opacity: 0.3; }
    100% { transform: scale(1); opacity: 0; }
}

.preloader-store-name {
    color: var(--preloader-color);
    font-size: 1.4em;
    font-weight: 600;
    letter-spacing: 1px;
}

.store-header {
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px var(--shadow-dark);
    border-bottom: 1px solid var(--header-border);
    transition: background 0.5s ease, border-color 0.5s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.store-name {
    color: var(--text-light);
    font-size: 1.6em;
    font-weight: 700;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}

#theme-toggle {
    background: var(--theme-toggle-bg);
    border: none;
    color: var(--text-light);
    font-size: 1.2em;
    padding: 8px 10px;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
}

#theme-toggle:hover {
    background: var(--theme-toggle-hover);
    transform: rotate(15deg);
}

.hero {
    min-height: 65vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-light);
    padding: 70px 20px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0) 70%);
    animation: rotate 30s linear infinite;
    z-index: 0;
    transition: background 0.5s ease;
}

[data-theme="dark"] .hero::before {
     background: radial-gradient(circle, rgba(51, 65, 85, 0.1) 0%, rgba(51, 65, 85, 0) 70%);
}


@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero h2 {
    font-size: 2.8em;
    margin-bottom: 15px;
    font-weight: 700;
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease-out;
}

.hero p {
    font-size: 1.2em;
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
    color: var(--text-muted);
    animation: fadeInUp 1s ease-out 0.3s;
    animation-fill-mode: backwards;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(45deg, var(--primary-accent-start), var(--primary-accent-end));
    color: #fff;
    padding: 12px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0, 0.2);
    position: relative;
    z-index: 1;
    animation: pulse 2s infinite;
}
[data-theme="light"] .cta-button {
     box-shadow: 0 4px 15px rgba(255, 106, 136, 0.3);
}


.cta-button:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 6px 20px rgba(0,0,0, 0.3);
    background: linear-gradient(45deg, var(--primary-accent-end), var(--primary-accent-start));
}
[data-theme="light"] .cta-button:hover {
    box-shadow: 0 6px 20px rgba(255, 106, 136, 0.5);
}


@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.03); }
    100% { transform: scale(1); }
}

.products-section {
    padding: 70px 0;
    background-color: rgba(0, 0, 0, 0.03);
     transition: background-color 0.5s ease;
}
[data-theme="dark"] .products-section {
     background-color: rgba(15, 23, 42, 0.2);
}


.section-title {
    text-align: center;
    margin-bottom: 60px;
    font-size: 2.2em;
    font-weight: 600;
    color: var(--text-light);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.1);
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(45deg, var(--primary-accent-start), var(--primary-accent-end));
    border-radius: 2px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 35px;
}

.product-item {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 32px 0 var(--shadow-light);
    border: 1px solid var(--card-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.5s ease, border-color 0.5s ease;
    display: flex;
    flex-direction: column;
    animation: fadeIn 0.5s ease-out forwards;
    opacity: 0;
    transform: translateY(20px);
}

.product-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 12px 40px 0 var(--shadow-dark);
    background: var(--card-bg-hover);
}

.product-item:nth-child(1) { animation-delay: 0.1s; }
.product-item:nth-child(2) { animation-delay: 0.2s; }
.product-item:nth-child(3) { animation-delay: 0.3s; }
.product-item:nth-child(4) { animation-delay: 0.4s; }
.product-item:nth-child(5) { animation-delay: 0.5s; }
.product-item:nth-child(6) { animation-delay: 0.6s; }


@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
}

.service-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 30px;
}

.service-icon {
    font-size: 3.5em;
    margin-bottom: 20px;
    background: -webkit-linear-gradient(45deg, var(--secondary-accent-start), var(--secondary-accent-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}


.product-info {
    padding: 20px 25px 25px 25px;
    text-align: center;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-info h3 {
    font-size: 1.3em;
    margin-bottom: 8px;
    color: var(--text-light);
    font-weight: 600;
}

.product-info > p {
    font-size: 0.9em;
    color: var(--text-muted);
    margin-bottom: 15px;
    min-height: 40px;
}

.options-toggle {
    background: var(--options-toggle-bg);
    border: 1px solid var(--card-border);
    color: var(--text-light);
    padding: 10px 15px;
    border-radius: 8px;
    cursor: pointer;
    width: 100%;
    text-align: left;
    margin: 15px 0 0 0; /* Adjusted margin */
    font-size: 0.95em;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease, border-color 0.5s ease;
}

.options-toggle:hover {
    background: var(--options-toggle-hover);
}

.options-toggle i {
    transition: transform 0.3s ease-in-out;
}

.options-toggle.active i {
    transform: rotate(180deg);
}

.options-content {
    background: var(--options-content-bg);
    border: 1px solid var(--options-content-border);
    border-top: none; /* Remove top border */
    border-radius: 0 0 10px 10px; /* Match toggle bottom radius */
    padding: 0 15px;
    text-align: left;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.5s ease-in-out, opacity 0.4s ease-in-out, padding 0.5s ease-in-out, margin 0.5s ease-in-out, border-color 0.5s ease;
    margin-bottom: 20px; /* Add margin below content when open */
}

.options-content.active {
    padding: 15px;
    max-height: 500px;
    opacity: 1;
    border-top: none; /* Ensure top border remains hidden */
}


.options-content h4 {
    font-size: 1em;
    color: var(--text-light);
    margin-bottom: 10px;
    font-weight: 600;
}

.option-list {
    list-style: none;
    padding-left: 0;
}

.option-list li {
    margin-bottom: 8px;
}

.option-list label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.9em;
    color: var(--options-content-text);
    transition: color 0.3s ease;
    padding: 5px 0;
}

.option-list label:hover {
    color: var(--radio-label-hover);
}

.option-list input[type="radio"] {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--radio-border);
    border-radius: 50%;
    margin-right: 10px;
    cursor: pointer;
    position: relative;
    top: -1px;
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.option-list input[type="radio"]:checked {
    border-color: var(--radio-checked-bg);
    background-color: var(--radio-checked-bg);
}

.option-list input[type="radio"]:checked::after {
    content: '';
    display: block;
    width: 8px;
    height: 8px;
    background-color: white;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
[data-theme="dark"] .option-list input[type="radio"]:checked::after {
    background-color: #1e293b; /* Dark inner circle for dark theme */
}

.card-button {
    display: inline-block;
    background: linear-gradient(45deg, var(--secondary-accent-start), var(--secondary-accent-end));
    color: var(--text-dark);
    padding: 10px 25px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95em;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    margin-top: auto;
    align-self: center;
}
[data-theme="light"] .card-button {
    box-shadow: 0 4px 15px rgba(102, 166, 255, 0.2);
}
[data-theme="dark"] .card-button {
    color: #0f172a;
}


.card-button:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    background: linear-gradient(45deg, var(--secondary-accent-end), var(--secondary-accent-start));
}
[data-theme="light"] .card-button:hover {
    box-shadow: 0 6px 20px rgba(102, 166, 255, 0.4);
    color: #000;
}


.contact-owner {
    padding: 70px 0;
    text-align: center;
    background: rgba(0, 0, 0, 0.08);
    transition: background 0.5s ease;
}
[data-theme="dark"] .contact-owner {
    background: rgba(15, 23, 42, 0.4);
}

.contact-owner .section-title {
    color: var(--text-light);
}

.contact-owner p {
    color: var(--text-muted);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.contact-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    color: #fff;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.contact-button i {
    font-size: 1.3em;
}

.contact-button.whatsapp {
    background: linear-gradient(45deg, #25d366, #128c7e);
}
.contact-button.whatsapp:hover {
    background: linear-gradient(45deg, #128c7e, #25d366);
    transform: translateY(-3px);
     box-shadow: 0 6px 15px rgba(37, 211, 102, 0.4);
}

.contact-button.telegram {
    background: linear-gradient(45deg, #0088cc, #00a0e9);
}
.contact-button.telegram:hover {
     background: linear-gradient(45deg, #00a0e9, #0088cc);
     transform: translateY(-3px);
     box-shadow: 0 6px 15px rgba(0, 136, 204, 0.4);
}


.ai-assistant-section {
    padding: 70px 0;
     background-color: rgba(0, 0, 0, 0.03);
     transition: background-color 0.5s ease;
}
[data-theme="dark"] .ai-assistant-section {
     background-color: rgba(15, 23, 42, 0.2);
}

.ai-assistant-section .section-title {
    color: var(--text-light);
}
.ai-assistant-section p {
     color: var(--text-muted);
     text-align: center;
     margin-bottom: 30px;
}

.chat-container {
    max-width: 750px;
    margin: auto;
    background: var(--card-bg);
    backdrop-filter: blur(8px);
    border-radius: 15px;
    box-shadow: 0 5px 20px var(--shadow-dark);
    overflow: hidden;
    border: 1px solid var(--card-border);
     transition: background 0.5s ease, border-color 0.5s ease;
}

#chat-output {
    height: 420px;
    overflow-y: auto;
    padding: 25px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.message {
    padding: 12px 18px;
    border-radius: 12px;
    max-width: 85%;
    word-wrap: break-word;
    line-height: 1.6;
    animation: popIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transition: background 0.5s ease, color 0.5s ease;
}

.message p { margin-bottom: 10px; }
.message p:last-child { margin-bottom: 0; }
.message ul { margin-left: 20px; margin-top: 8px; margin-bottom: 10px; }
.message li { margin-bottom: 4px; }
.message strong, .message b { font-weight: 600; color: var(--text-light); }
[data-theme="dark"] .message strong, [data-theme="dark"] .message b { color: var(--primary-accent-start); }


@keyframes popIn {
    from { opacity: 0; transform: scale(0.7); }
    to { opacity: 1; transform: scale(1); }
}

.user-message {
    background: linear-gradient(45deg, var(--secondary-accent-start), var(--secondary-accent-end));
    color: var(--text-dark);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}
[data-theme="dark"] .user-message {
    color: #0f172a;
}


.ai-message {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-light);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

[data-theme="dark"] .ai-message {
     background: rgba(51, 65, 85, 0.6);
     color: var(--text-light);
}


.thinking-message {
     font-style: italic;
     color: var(--text-muted);
     align-self: flex-start;
     background: transparent !important;
     animation: blink 1.5s infinite;
     padding: 5px 15px;
     display: flex;
     align-items: center;
     gap: 8px;
}

@keyframes blink {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

#chat-input-area {
    display: flex;
    border-top: 1px solid var(--header-border);
     transition: border-color 0.5s ease;
}

#user-input {
    flex-grow: 1;
    padding: 15px 20px;
    border: none;
    background: var(--input-bg);
    color: var(--text-light);
    font-size: 1em;
    outline: none;
     transition: background 0.5s ease, color 0.5s ease;
}
#user-input::placeholder {
    color: var(--input-placeholder);
     transition: color 0.5s ease;
}

#send-button {
    padding: 15px 25px;
    border: none;
    background: linear-gradient(45deg, var(--primary-accent-start), var(--primary-accent-end));
    color: white;
    cursor: pointer;
    font-size: 1.1em;
    transition: background 0.3s ease, transform 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

#send-button:hover {
     background: linear-gradient(45deg, var(--primary-accent-end), var(--primary-accent-start));
     transform: scale(1.05);
}
#send-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: scale(1);
}


/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 768px) {
    .hero h2 { font-size: 2.2em; }
    .hero p { font-size: 1em; }
    .section-title { font-size: 1.9em; }
    .product-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
    .product-item:hover { transform: translateY(-5px) scale(1.01); }
    .contact-methods { flex-direction: column; align-items: center; }
    .contact-button { width: 80%; justify-content: center; }
    #chat-output { height: 350px; padding: 20px; gap: 15px; }
    .store-name { font-size: 1.4em; }
    #theme-toggle { font-size: 1.1em; padding: 7px 9px; }
}

@media (max-width: 480px) {
    .hero h2 { font-size: 1.8em; }
    .hero p { font-size: 0.9em; }
    .cta-button { padding: 10px 25px; font-size: 0.9em; }
    .header-content { padding: 0 15px; }
    .container { padding: 0 15px; }
    #user-input { padding: 12px 15px; }
    #send-button { padding: 12px 20px; font-size: 1em; }
    .store-header { padding: 10px 0; }
    .product-grid { grid-template-columns: 1fr; }
    .water-loader { width: 60px; height: 60px; margin-bottom: 20px; }
    .preloader-store-name { font-size: 1.2em; }
    #chat-output { height: 300px; }
    .option-list label { font-size: 0.85em; }
    .option-list input[type="radio"] { width: 16px; height: 16px; }
}

/* Scrollbar Styling */
#chat-output::-webkit-scrollbar { width: 8px; }
#chat-output::-webkit-scrollbar-track { background: var(--scrollbar-track); border-radius: 10px; transition: background 0.5s ease; }
#chat-output::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 10px; transition: background 0.5s ease; }
#chat-output::-webkit-scrollbar-thumb:hover { filter: brightness(1.2); }

/* Font Awesome Spinner */
.fa-spinner { font-size: 0.9em; }