/* ================================
   DANECCA DESIGN SYSTEM
   Revolutionary Customer-First Branding
   ================================ */

:root {
    /* Primary Colors - Clean & Modern */
    --color-dark: #0A0A0A;
    --color-light: #FFFFFF;
    --color-grey-100: #F5F5F7;
    --color-grey-200: #E8E8ED;
    --color-grey-300: #D2D2D7;
    --color-grey-400: #86868B;
    --color-grey-500: #6E6E73;
    --color-grey-600: #424245;

    /* Market-Specific Brand Colors */
    --color-marine: #0071E3;        /* Electric Blue - Defence/Marine (use sparingly) */
    --color-agriculture: #34C759;   /* Vibrant Green - Agricultural */
    --color-industrial: #FFD60A;    /* Bright Yellow - Industrial */
    --color-innovation: #e378ba;    /* Pink - Energy/Innovation (PRIMARY) */

    /* Primary Brand Colors - Pink & Yellow Lead */
    --color-primary: #e378ba;       /* Pink - primary actions */
    --color-secondary: #FFD60A;     /* Yellow - secondary actions */

    /* Semantic Colors */
    --color-success: #34C759;
    --color-warning: #FFD60A;
    --color-error: #FF3B30;
    --color-info: #0071E3;

    /* Typography - Ubuntu Everywhere */
    --font-heading: 'Ubuntu', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Ubuntu', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Font Sizes - Type Scale */
    --text-xs: 0.75rem;      /* 12px */
    --text-sm: 0.875rem;     /* 14px */
    --text-base: 1rem;       /* 16px */
    --text-lg: 1.125rem;     /* 18px */
    --text-xl: 1.25rem;      /* 20px */
    --text-2xl: 1.5rem;      /* 24px */
    --text-3xl: 2rem;        /* 32px */
    --text-4xl: 2.5rem;      /* 40px */
    --text-5xl: 3rem;        /* 48px */
    --text-6xl: 4rem;        /* 64px */

    /* Spacing Scale */
    --space-xs: 0.25rem;     /* 4px */
    --space-sm: 0.5rem;      /* 8px */
    --space-md: 1rem;        /* 16px */
    --space-lg: 1.5rem;      /* 24px */
    --space-xl: 2rem;        /* 32px */
    --space-2xl: 3rem;       /* 48px */
    --space-3xl: 4rem;       /* 64px */
    --space-4xl: 6rem;       /* 96px */

    /* Border Radius */
    --radius-sm: 0.375rem;   /* 6px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px */
    --radius-2xl: 1.5rem;    /* 24px */
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-conversation: 650ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme (Default) */
.dark-theme {
    --bg-primary: var(--color-dark);
    --bg-secondary: #1C1C1E;
    --bg-tertiary: #2C2C2E;
    --bg-elevated: #3A3A3C;

    --text-primary: var(--color-light);
    --text-secondary: var(--color-grey-300);
    --text-tertiary: var(--color-grey-400);

    --border-color: var(--color-grey-600);
    --hover-bg: rgba(255, 255, 255, 0.05);
}

/* Light Theme */
.light-theme {
    --bg-primary: var(--color-light);
    --bg-secondary: var(--color-grey-100);
    --bg-tertiary: var(--color-grey-200);
    --bg-elevated: var(--color-light);

    --text-primary: var(--color-dark);
    --text-secondary: var(--color-grey-500);
    --text-tertiary: var(--color-grey-400);

    --border-color: var(--color-grey-200);
    --hover-bg: rgba(0, 0, 0, 0.03);
}

/* ================================
   BASE STYLES
   ================================ */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    height: 100%;
    overflow-y: auto;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition-base), color var(--transition-base);
    overflow: hidden; /* Prevent body scroll, let main scroll */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

a {
    color: var(--color-marine);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-info);
}

button {
    font-family: var(--font-body);
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea {
    font-family: var(--font-body);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ================================
   HEADER
   ================================ */

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 2px solid var(--color-primary);
    padding: var(--space-sm) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap; /* Prevent wrapping */
    gap: var(--space-md);
    transition: border-color var(--transition-base);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: transform var(--transition-base);
    transform-style: preserve-3d;
    position: relative;
    flex-shrink: 0; /* Prevent logo from shrinking */
    white-space: nowrap;
}

.logo-tree {
    height: 28px;
    width: auto;
    color: var(--color-primary);
    transition: color var(--transition-base);
}

.logo-text {
    height: 18px;
    width: auto;
    filter: brightness(0) saturate(100%) invert(100%);
    transition: filter var(--transition-base);
}

.logo svg {
    color: var(--color-primary);
}

/* Logo admin mode animation */
.logo.admin-mode {
    animation: rotate3D 0.6s ease-in-out;
}

@keyframes rotate3D {
    0% {
        transform: perspective(600px) rotateY(0deg);
    }
    50% {
        transform: perspective(600px) rotateY(90deg);
        opacity: 0.3;
    }
    100% {
        transform: perspective(600px) rotateY(0deg);
    }
}

/* Admin Login Modal */
.admin-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.admin-modal.visible {
    opacity: 1;
    visibility: visible;
}

.admin-modal-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    max-width: 400px;
    width: calc(100% - var(--space-lg) * 2);
    max-height: calc(100vh - var(--space-lg) * 2);
    overflow-y: auto;
    box-shadow: var(--shadow-2xl);
    animation: slideIn var(--transition-slow) ease-out;
    margin: var(--space-lg);
}

.admin-modal-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.admin-modal-header h2 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-sm);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.admin-modal-header p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.admin-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.form-group label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input {
    padding: var(--space-md);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 55, 95, 0.1);
}

.admin-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.admin-actions button {
    flex: 1;
}

.admin-close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
}

.admin-close:hover {
    background-color: var(--hover-bg);
    color: var(--text-primary);
}

/* Custom Color Picker */
.color-picker-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.color-input-group {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.color-input-group input[type="color"] {
    width: 60px;
    height: 44px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    padding: 4px;
    background-color: transparent;
}

.color-input-group input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-input-group input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 6px;
}

.color-input-group input[type="color"]::-moz-color-swatch {
    border: none;
    border-radius: 6px;
}

.color-input-group input[type="color"]:hover {
    border-color: var(--color-primary);
}

.color-input-group input[type="text"] {
    flex: 1;
    padding: var(--space-md);
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    color: var(--text-primary);
    font-family: monospace;
    transition: all var(--transition-fast);
}

.color-input-group input[type="text"]:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 55, 95, 0.1);
}

.color-preview-box {
    text-align: center;
    padding: var(--space-lg);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-xl);
}

.color-preview-gradient {
    width: 100%;
    height: 80px;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.color-preview-box p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin: 0;
}

/* ================================
   HEADER ACTIONS (Login + Theme Picker)
   ================================ */

.header-actions {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    gap: var(--space-md);
    flex-shrink: 0;
}

.login-button {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: var(--text-sm);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
    height: 36px;
    box-sizing: border-box;
}

.login-button:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--color-primary);
    text-decoration: none;
    color: var(--text-primary);
}

.login-button svg {
    color: var(--color-primary);
}

.login-label {
    font-weight: 500;
}

/* ================================
   THEME PICKER
   ================================ */

.theme-picker {
    position: relative;
    flex-shrink: 0; /* Prevent theme picker from shrinking */
}

.theme-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
    height: 36px;
    box-sizing: border-box;
}

.theme-toggle:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--color-primary);
}

.theme-toggle svg {
    color: var(--color-primary);
}

.theme-label {
    font-weight: 500;
}

.theme-menu {
    position: absolute;
    top: calc(100% + var(--space-sm));
    right: 0;
    min-width: 320px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    padding: var(--space-lg);
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: all var(--transition-base);
    z-index: 1001;
}

.theme-menu.hidden {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    pointer-events: none;
}

.theme-menu-header {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-color);
}

.theme-menu-header h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.theme-menu-header p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.mode-toggle-container {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.mode-toggle-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background-color: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.mode-toggle-btn:hover {
    background-color: var(--hover-bg);
    border-color: var(--color-primary);
    color: var(--text-primary);
}

.mode-toggle-btn.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-color: var(--color-primary);
    color: var(--color-light);
}

.mode-toggle-btn svg {
    flex-shrink: 0;
}

.theme-menu-divider {
    height: 1px;
    background-color: var(--border-color);
    margin-bottom: var(--space-lg);
}

.theme-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

@media (min-width: 769px) {
    .theme-options {
        grid-template-columns: repeat(3, 1fr);
    }
}

.theme-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background-color: transparent;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.theme-option:hover {
    background-color: var(--hover-bg);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.theme-option.active {
    border-color: var(--color-primary);
    background-color: rgba(255, 55, 95, 0.1);
}

.theme-preview {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
}

.theme-option span {
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--text-secondary);
    text-align: center;
}

.theme-option:hover span {
    color: var(--text-primary);
}

/* ================================
   MAIN SEARCH INTERFACE
   ================================ */

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 100px 0 0 0; /* Top padding to clear fixed header */
    overflow: hidden; /* Prevent main from scrolling, let response-area scroll */
    position: relative;
}

/* Response area - scrollable content above search bar */
.response-area {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-2xl) var(--space-xl);
    display: flex;
    flex-direction: column;
}

/* Search bar container - fixed at bottom */
.search-bar-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: var(--space-md) var(--space-lg);
    z-index: 100;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.search-bar {
    max-width: 800px;
    margin: 0 auto;
}

.search-container {
    width: 100%;
    max-width: 680px;
    margin: 0 auto;
    transition: all var(--transition-conversation);
    will-change: transform, max-width;
}

.brand-intro {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.tagline {
    font-family: var(--font-heading);
    font-size: var(--text-5xl);
    font-weight: 900;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--color-innovation), var(--color-industrial), var(--color-agriculture));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.02em;
}

.subtitle {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    font-weight: 400;
}

/* Search Box */
.search-wrapper {
    margin-bottom: var(--space-lg);
}

.search-box {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: var(--space-md) var(--space-lg);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.search-box:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(255, 55, 95, 0.1), var(--shadow-lg);
}

.search-icon {
    color: var(--text-tertiary);
    flex-shrink: 0;
}

#searchInput {
    flex: 1;
    border: none;
    background: transparent;
    font-size: var(--text-base);
    color: var(--text-primary);
    outline: none;
}

#searchInput::placeholder {
    color: var(--text-tertiary);
}

.voice-search {
    padding: var(--space-sm);
    border-radius: var(--radius-full);
    color: var(--color-primary);
    transition: background-color var(--transition-fast);
}

.voice-search:hover {
    background-color: var(--hover-bg);
}

.search-actions {
    display: flex;
    justify-content: center;
    margin-top: var(--space-lg);
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), #FF4570);
    color: var(--color-light);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-full);
    font-size: var(--text-base);
    font-weight: 500;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #FF4570, var(--color-primary));
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-full);
    font-size: var(--text-base);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background-color: var(--hover-bg);
    border-color: var(--text-tertiary);
}

/* Suggestions */
.suggestions {
    text-align: center;
}

.suggestions-label {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin-bottom: var(--space-md);
}

.suggestion-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: center;
}

.chip {
    padding: var(--space-sm) var(--space-lg);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.chip:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--color-primary);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ================================
   AI RESPONSE AREA
   ================================ */

.response-area {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    margin-top: var(--space-2xl);
    animation: slideIn var(--transition-slow) ease-out;
    box-shadow: var(--shadow-xl);
}

.response-area.hidden {
    display: none;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.response-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
}

.danecca-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.danecca-avatar svg {
    color: var(--color-light);
}

.response-header h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.response-subhead {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.response-content {
    font-size: var(--text-base);
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: var(--space-xl);
    max-width: 100%;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.response-content h4 {
    font-size: var(--text-xl);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
    color: var(--color-primary);
    overflow-wrap: break-word;
}

.response-content p {
    margin-bottom: var(--space-md);
    max-width: 100%;
}

.response-content ul {
    list-style: none;
    margin-left: 0;
    padding-left: 0;
}

.response-content li {
    padding-left: var(--space-xl);
    margin-bottom: var(--space-sm);
    position: relative;
}

.response-content li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 6px;
    height: 6px;
    background-color: var(--color-primary);
    border-radius: 50%;
}

.response-content strong {
    color: var(--color-primary);
    font-weight: 600;
}

.response-actions {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* Market Tags */
.market-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-right: var(--space-sm);
}

.market-tag.marine {
    background-color: rgba(0, 113, 227, 0.15);
    color: var(--color-marine);
}

.market-tag.agriculture {
    background-color: rgba(52, 199, 89, 0.15);
    color: var(--color-agriculture);
}

.market-tag.industrial {
    background-color: rgba(255, 214, 10, 0.15);
    color: var(--color-industrial);
}

/* ================================
   FLOATING CONTACT
   ================================ */

.floating-contact {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    z-index: 100;
}

.contact-toggle {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-light);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-fast);
}

.contact-toggle:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-2xl);
}

/* ================================
   FOOTER
   ================================ */

footer {
    border-top: 1px solid var(--border-color);
    padding: var(--space-sm) var(--space-lg);
    margin-top: auto;
    background-color: var(--bg-primary);
    transition: border-color var(--transition-base);
    text-align: center;
}

footer p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-base);
}

footer a:hover {
    color: var(--color-primary);
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-md);
}

.footer-nav {
    display: flex;
    gap: var(--space-xl);
    margin-bottom: var(--space-sm);
}

.footer-link {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-primary);
}

.footer-text {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin: 0;
    line-height: 1.6;
}

.footer-text a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-text a:hover {
    color: var(--color-primary);
}

.footer-copyright {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    margin-top: var(--space-sm);
    opacity: 0.7;
}

/* ================================
   GEMINI-STYLE CONVERSATION LAYOUT
   ================================ */

.conversation-mode {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    align-items: stretch;
    justify-content: flex-start !important;
    gap: 0;
    max-width: 100% !important;
    width: 100% !important;
    margin: 0;
    padding: 0 !important;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    transition: all var(--transition-conversation);
}

.conversation-mode .search-panel {
    flex: 0 0 400px;
    width: 400px;
    min-width: 400px;
    max-width: 400px;
    border-right: 1px solid var(--border-color);
    padding: var(--space-xl);
    padding-bottom: 120px;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    z-index: 10;
    transition: all var(--transition-conversation);
    position: relative;
}

.conversation-mode .response-panel {
    flex: 1;
    min-width: 0;
    padding: var(--space-xl);
    padding-bottom: 120px;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 5;
    opacity: 0;
    transform: translateX(20px);
    transition: opacity var(--transition-conversation), transform var(--transition-conversation);
    position: relative;
}

.conversation-mode .response-panel.visible {
    opacity: 1;
    transform: translateX(0);
}

.conversation-mode .conversation-history {
    max-width: 100%;
    overflow-wrap: break-word;
}

.conversation-mode .conversation-item {
    max-width: 100% !important;
    width: 100% !important;
    overflow-wrap: break-word;
    word-wrap: break-word;
    box-sizing: border-box !important;
}

.conversation-mode .conversation-item * {
    max-width: 100% !important;
    box-sizing: border-box !important;
}

.conversation-mode .brand-intro {
    margin-bottom: var(--space-xl);
}

.conversation-mode .tagline {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-sm);
}

.conversation-mode .subtitle {
    font-size: var(--text-sm);
}

.conversation-mode .search-wrapper {
    margin-bottom: var(--space-lg);
}

.conversation-mode .suggestions {
    margin-top: var(--space-xl);
}

.conversation-mode .response-area {
    margin-top: 0;
    background-color: transparent;
    border: none;
    padding: 0;
    box-shadow: none;
}

.conversation-mode .response-area.hidden {
    display: block;
}

/* Footer in conversation mode - cover the whole window */
body:has(.conversation-mode) footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 15;
    margin-top: 0;
    background-color: var(--bg-primary);
}

.conversation-history {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.conversation-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--space-xl);
    animation: slideIn var(--transition-slow) ease-out;
    transition: all var(--transition-base);
}

.conversation-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.user-query {
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--text-primary);
    padding-left: var(--space-xl);
    position: relative;
    flex: 1;
}

.user-query::before {
    content: '?';
    position: absolute;
    left: 0;
    top: 0;
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--text-sm);
    color: var(--color-light);
}

.collapse-btn {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background-color: transparent;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.collapse-btn:hover {
    background-color: var(--hover-bg);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.collapse-icon {
    transition: transform var(--transition-base);
}

.conversation-item.collapsed .collapse-icon {
    transform: rotate(-90deg);
}

.response-body {
    max-height: 5000px;
    overflow: hidden;
    transition: max-height var(--transition-base) ease-out, opacity var(--transition-base);
    opacity: 1;
}

.conversation-item.collapsed .response-body {
    max-height: 0;
    opacity: 0;
}

/* Follow-up Questions - Mobile Only */
.follow-up-questions {
    display: none;
}

@media (max-width: 768px) {
    .follow-up-questions {
        display: block;
        margin-top: var(--space-xl);
        padding-top: var(--space-xl);
        border-top: 1px solid var(--border-color);
    }

    .follow-up-label {
        font-size: var(--text-sm);
        color: var(--text-tertiary);
        margin-bottom: var(--space-md);
        font-weight: 500;
    }

    .follow-up-chips {
        display: flex;
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    .follow-up-chip {
        padding: var(--space-sm) var(--space-lg);
        background-color: var(--bg-tertiary);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-full);
        font-size: var(--text-sm);
        color: var(--text-secondary);
        transition: all var(--transition-fast);
        cursor: pointer;
    }

    .follow-up-chip:hover {
        background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
        border-color: var(--color-primary);
        color: var(--color-light);
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }
}

/* ================================
   RESPONSIVE DESIGN
   ================================ */

@media (max-width: 768px) {
    :root {
        --text-5xl: 2.5rem;
        --text-4xl: 2rem;
    }

    header {
        padding: var(--space-xs) var(--space-md);
    }

    .logo-tree {
        height: 24px;
    }

    .logo-text {
        height: 16px;
    }

    main {
        padding: var(--space-xl) var(--space-md);
    }

    .brand-intro {
        margin-bottom: var(--space-2xl);
    }

    .response-area {
        padding: var(--space-xl);
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .floating-contact {
        bottom: var(--space-lg);
        right: var(--space-lg);
    }

    /* Conversation mode mobile layout */
    .conversation-mode {
        flex-direction: column;
        display: flex !important;
        top: 0 !important;
    }

    /* Show header in mobile conversation mode but compact */
    body:has(.conversation-mode) header {
        padding: var(--space-xs) var(--space-md);
    }

    /* Hide footer in mobile conversation mode */
    body:has(.conversation-mode) footer {
        transform: translateY(100%);
        opacity: 0;
        pointer-events: none;
        transition: transform var(--transition-base), opacity var(--transition-base);
    }

    /* Hide brand intro in mobile */
    .conversation-mode .brand-intro {
        display: none;
    }

    /* Scrollable response area in the middle */
    .conversation-mode .response-panel {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        bottom: 120px;
        padding: var(--space-md);
        padding-bottom: 180px;
        overflow-y: auto;
        overflow-x: hidden;
        z-index: 5;
    }

    /* Fixed chat bar at bottom */
    .conversation-mode .search-panel {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        max-width: 100%;
        height: auto;
        max-height: none;
        border-right: none;
        border-top: 1px solid var(--border-color);
        padding: var(--space-md);
        padding-bottom: var(--space-md);
        z-index: 50;
        background-color: var(--bg-primary);
        flex-direction: column;
        gap: var(--space-md);
    }

    .conversation-mode .search-wrapper {
        margin-bottom: 0;
    }

    .conversation-mode .suggestions {
        display: none;
    }

    .conversation-mode .suggestion-chips {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    .theme-menu {
        right: var(--space-sm);
        left: var(--space-sm);
        min-width: 0;
        width: calc(100vw - var(--space-sm) * 2);
        max-width: calc(100vw - var(--space-sm) * 2);
        padding: var(--space-sm);
    }

    .theme-menu-header h3 {
        font-size: var(--text-base);
    }

    .theme-menu-header p {
        font-size: 0.7rem;
    }

    .theme-options {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }

    .mode-toggle-container {
        flex-direction: row;
        gap: var(--space-xs);
        margin-bottom: var(--space-sm);
    }

    .mode-toggle-btn {
        font-size: 0.65rem;
        padding: 6px 8px;
        gap: 4px;
    }

    .mode-toggle-btn svg {
        width: 12px;
        height: 12px;
    }

    .theme-option {
        padding: var(--space-sm);
        gap: 6px;
    }

    .theme-preview {
        width: 36px;
        height: 36px;
    }

    .theme-option span {
        font-size: 0.6rem;
        line-height: 1.2;
    }
}

@media (max-width: 480px) {
    .tagline {
        font-size: var(--text-4xl);
    }

    .subtitle {
        font-size: var(--text-base);
    }

    .response-actions {
        flex-direction: column;
    }

    .response-actions .btn-primary,
    .response-actions .btn-secondary {
        width: 100%;
        text-align: center;
    }
}