/**
 * Strickland Services Limited - AI Chatbot Styles
 * Professional maritime services chatbot styling
 * Version: 2.1 - Improved Color Scheme & Contrast
 * 
 * Color Scheme:
 * - Primary: Company blue (#1e3a8a)
 * - Backgrounds: Pure white for messages, light blue for accents
 * - Text: Dark colors for maximum readability
 * - Buttons: White background with blue borders/text, blue background on hover
 * - No grey backgrounds - clean, modern chatbot appearance
 */

/* ================================
   CORE CHATBOT VARIABLES
   ================================ */
:root {
    --ssl-primary: #1e3a8a;        /* Company blue */
    --ssl-primary-light: #3b82f6;   /* Lighter blue */
    --ssl-secondary: #059669;        /* Green accent */
    --ssl-accent: #f59e0b;          /* Gold/amber */
    --ssl-white: #ffffff;           /* Pure white */
    --ssl-black: #000000;           /* Pure black */
    --ssl-text-primary: #1a202c;    /* Dark text for readability */
    --ssl-text-secondary: #4a5568;  /* Secondary text */
    --ssl-text-muted: #718096;      /* Muted text */
    --ssl-bg-primary: #ffffff;      /* Primary background - white */
    --ssl-bg-secondary: #f8fafc;    /* Secondary background - very light blue */
    --ssl-bg-accent: #e0f2fe;       /* Accent background - light blue */
    --ssl-border-light: #e2e8f0;    /* Light border */
    --ssl-border-medium: #cbd5e0;   /* Medium border */
    --ssl-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --ssl-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --ssl-border-radius: 12px;
    --ssl-border-radius-lg: 16px;
    --ssl-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --ssl-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* ================================
   CHAT BUTTON STYLES
   ================================ */
.ssl-chat-button {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: linear-gradient(135deg, var(--ssl-primary) 0%, var(--ssl-primary-light) 100%);
    color: var(--ssl-white);
    border-radius: 50px;
    padding: 16px 24px;
    cursor: pointer;
    box-shadow: var(--ssl-shadow-lg);
    transition: var(--ssl-transition);
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--ssl-font-family);
    font-weight: 700;
    font-size: 15px;
    user-select: none;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    max-width: 200px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.ssl-chat-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 25px 50px rgba(30, 58, 138, 0.3);
    border-color: rgba(255, 255, 255, 0.3);
}

.ssl-chat-button.ssl-chat-button-open {
    transform: scale(0.95);
    opacity: 0.8;
}

.ssl-chat-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    animation: ssl-pulse 2s infinite;
}

.ssl-chat-text {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@keyframes ssl-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* ================================
   CHAT WINDOW STYLES
   ================================ */
.ssl-chat-window {
    position: fixed;
    bottom: 100px;
    right: 24px;
    width: 400px;
    height: 600px;
    background: var(--ssl-white);
    border-radius: var(--ssl-border-radius-lg);
    box-shadow: var(--ssl-shadow-lg);
    font-family: var(--ssl-font-family);
    display: flex;
    flex-direction: column;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    visibility: hidden;
    transition: var(--ssl-transition);
    z-index: 10000;
    border: 1px solid var(--ssl-border-light);
    overflow: hidden;
}

.ssl-chat-window.ssl-chat-open {
    opacity: 1;
    transform: translateY(0) scale(1);
    visibility: visible;
}

/* ================================
   CHAT HEADER STYLES
   ================================ */
.ssl-chat-header {
    background: linear-gradient(135deg, var(--ssl-primary) 0%, var(--ssl-primary-light) 100%);
    color: var(--ssl-white);
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: var(--ssl-border-radius-lg) var(--ssl-border-radius-lg) 0 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.ssl-chat-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="anchor" x="0" y="0" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M10 2L12 8L18 10L12 12L10 18L8 12L2 10L8 8Z" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23anchor)"/></svg>') repeat;
    opacity: 0.3;
    pointer-events: none;
}

.ssl-chat-header-info {
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 1;
    position: relative;
}

.ssl-chat-avatar {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.ssl-chat-title {
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 2px;
}

.ssl-chat-status {
    font-size: 12px;
    opacity: 0.9;
    color: rgba(255, 255, 255, 0.8);
}

.ssl-chat-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--ssl-white);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--ssl-transition);
    z-index: 1;
    position: relative;
}

.ssl-chat-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

/* ================================
   MESSAGES AREA STYLES
   ================================ */
.ssl-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--ssl-white);
    scroll-behavior: smooth;
}

.ssl-chat-messages::-webkit-scrollbar {
    width: 6px;
}

.ssl-chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.ssl-chat-messages::-webkit-scrollbar-thumb {
    background: var(--ssl-border-medium);
    border-radius: 3px;
}

.ssl-chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--ssl-border-medium);
}

/* ================================
   MESSAGE STYLES
   ================================ */
.ssl-chat-message {
    display: flex;
    flex-direction: column;
    max-width: 80%;
    animation: ssl-messageSlide 0.3s ease-out;
}

@keyframes ssl-messageSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ssl-bot-message {
    align-self: flex-start;
}

.ssl-user-message {
    align-self: flex-end;
}

.ssl-message-content {
    padding: 14px 18px;
    border-radius: var(--ssl-border-radius);
    font-size: 14px;
    line-height: 1.6;
    word-wrap: break-word;
    position: relative;
    letter-spacing: 0.01em;
}

.ssl-bot-message .ssl-message-content {
    background: var(--ssl-white);
    color: var(--ssl-text-primary);
    border: 1px solid var(--ssl-border-light);
    border-bottom-left-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    font-weight: 500;
}

.ssl-user-message .ssl-message-content {
    background: linear-gradient(135deg, var(--ssl-primary) 0%, var(--ssl-primary-light) 100%);
    color: var(--ssl-white);
    border-bottom-right-radius: 4px;
    box-shadow: 0 2px 8px rgba(30, 58, 138, 0.25);
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.ssl-message-content p {
    margin: 0;
    margin-bottom: 8px;
}

.ssl-message-content p:last-child {
    margin-bottom: 0;
}

/* ================================
   QUICK REPLIES STYLES
   ================================ */
.ssl-quick-replies {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
    animation: ssl-fadeInUp 0.4s ease-out 0.1s both;
}

@keyframes ssl-fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ssl-quick-reply {
    background: var(--ssl-white);
    border: 2px solid var(--ssl-primary);
    color: var(--ssl-primary);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: var(--ssl-transition);
    white-space: nowrap;
    font-family: var(--ssl-font-family);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.ssl-quick-reply:hover {
    background: var(--ssl-primary);
    color: var(--ssl-white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
}

.ssl-quick-reply:active {
    transform: translateY(0);
}

/* ================================
   INPUT AREA STYLES
   ================================ */
.ssl-chat-input-area {
    border-top: 1px solid var(--ssl-border-light);
    background: var(--ssl-white);
    padding: 16px 20px;
    border-radius: 0 0 var(--ssl-border-radius-lg) var(--ssl-border-radius-lg);
}

.ssl-chat-input-container {
    display: flex;
    gap: 12px;
    align-items: center;
    background: var(--ssl-bg-accent);
    border-radius: 25px;
    padding: 4px;
    border: 2px solid var(--ssl-border-light);
    transition: var(--ssl-transition);
}

.ssl-chat-input-container:focus-within {
    border-color: var(--ssl-primary);
    background: var(--ssl-white);
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

#ssl-chat-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 12px 16px;
    font-size: 14px;
    font-family: var(--ssl-font-family);
    color: var(--ssl-text-primary);
    outline: none;
    border-radius: 20px;
    font-weight: 500;
}

#ssl-chat-input::placeholder {
    color: var(--ssl-text-muted);
    font-weight: 400;
}

#ssl-chat-input:disabled {
    color: var(--ssl-border-medium);
    cursor: not-allowed;
}

#ssl-chat-send {
    background: linear-gradient(135deg, var(--ssl-primary) 0%, var(--ssl-primary-light) 100%);
    color: var(--ssl-white);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--ssl-transition);
    flex-shrink: 0;
}

#ssl-chat-send:hover:not(:disabled) {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
}

#ssl-chat-send:disabled {
    background: var(--ssl-border-medium);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.ssl-chat-footer {
    text-align: center;
    margin-top: 8px;
}

.ssl-chat-footer span {
    font-size: 11px;
    color: var(--ssl-text-secondary);
    font-weight: 500;
}

/* ================================
   MOBILE RESPONSIVE STYLES
   ================================ */
@media (max-width: 768px) {
    .ssl-chat-button {
        bottom: 20px;
        right: 20px;
        padding: 14px 20px;
        font-size: 14px;
        max-width: 180px;
    }
    
    .ssl-chat-window {
        bottom: 80px;
        right: 20px;
        left: 20px;
        width: auto;
        height: 500px;
        max-height: 70vh;
    }
    
    .ssl-chat-header {
        padding: 16px;
    }
    
    .ssl-chat-title {
        font-size: 15px;
    }
    
    .ssl-chat-status {
        font-size: 11px;
    }
    
    .ssl-chat-messages {
        padding: 16px;
        gap: 12px;
    }
    
    .ssl-chat-message {
        max-width: 85%;
    }
    
    .ssl-message-content {
        padding: 12px 16px;
        font-size: 13px;
    }
    
    .ssl-quick-replies {
        gap: 6px;
        margin-top: 10px;
    }
    
    .ssl-quick-reply {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    .ssl-chat-input-area {
        padding: 12px 16px;
    }
    
    #ssl-chat-input {
        padding: 10px 14px;
        font-size: 13px;
    }
    
    #ssl-chat-send {
        width: 36px;
        height: 36px;
    }
}

@media (max-width: 480px) {
    .ssl-chat-window {
        bottom: 20px;
        right: 10px;
        left: 10px;
        height: 450px;
        max-height: 75vh;
    }
    
    .ssl-chat-button {
        bottom: 15px;
        right: 15px;
        padding: 12px 16px;
        font-size: 13px;
        max-width: 160px;
    }
    
    .ssl-chat-icon {
        width: 20px;
        height: 20px;
    }
}

/* ================================
   ACCESSIBILITY STYLES
   ================================ */
@media (prefers-reduced-motion: reduce) {
    .ssl-chat-button,
    .ssl-chat-window,
    .ssl-chat-message,
    .ssl-quick-replies,
    .ssl-quick-reply,
    .ssl-chat-input-container,
    #ssl-chat-send,
    .ssl-chat-close {
        animation: none;
        transition: none;
    }
    
    .ssl-chat-icon {
        animation: none;
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --ssl-bg-primary: #1f2937;
        --ssl-bg-secondary: #374151;
        --ssl-bg-accent: #4b5563;
        --ssl-border-light: #4b5563;
        --ssl-border-medium: #64748b;
        --ssl-text-muted: #94a3b8;
    }
}

/* ================================
   HIGH CONTRAST MODE
   ================================ */
@media (prefers-contrast: high) {
    .ssl-chat-button {
        border: 3px solid var(--ssl-white);
    }
    
    .ssl-bot-message .ssl-message-content {
        border: 2px solid var(--ssl-border-medium);
    }
    
    .ssl-quick-reply {
        border-width: 3px;
    }
    
    .ssl-chat-input-container:focus-within {
        border-width: 3px;
    }
}

/* ================================
   LOADING AND ERROR STATES
   ================================ */
.ssl-loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--ssl-border-medium);
    border-radius: 50%;
    border-top-color: var(--ssl-primary);
    animation: ssl-spin 1s ease-in-out infinite;
}

@keyframes ssl-spin {
    to { transform: rotate(360deg); }
}

.ssl-error-message {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 12px;
    border-radius: var(--ssl-border-radius);
    font-size: 13px;
    margin-top: 8px;
}

.ssl-success-message {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
    padding: 12px;
    border-radius: var(--ssl-border-radius);
    font-size: 13px;
    margin-top: 8px;
}

/* ================================
   PRINT STYLES
   ================================ */
@media print {
    .ssl-chat-button,
    .ssl-chat-window {
        display: none !important;
    }
}