/* =================================================================
 * WELCOME MESSAGE COMPONENT STYLES
 * ================================================================= */

/*
 * This module contains styles for the welcome message display
 * that appears when no chat messages are present.
 * 
 * Dependencies: chat-variables.css, design-system.css
 * Used by: Welcome message component
 */

/* --- Welcome Container --- */
.welcome-container {
    position: fixed;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    width: 100%;
    max-width: 800px;
    padding: 2rem;
    text-align: center;
    pointer-events: none;
    transition: opacity var(--anim-normal) var(--easing-standard),
        transform var(--anim-normal) var(--easing-standard);
}

.welcome-container.hidden {
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, -50%) scale(0.95);
    transition: opacity var(--anim-fast) var(--easing-standard),
        transform var(--anim-fast) var(--easing-standard),
        visibility 0s var(--anim-fast);
}

.welcome-container.visible {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

/* --- Welcome Content --- */
.welcome-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    animation: welcomeFadeIn 0.6s ease-out;
}

/* --- Welcome Heading --- */
.welcome-heading {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    color: var(--text-color);
    margin: 0;
    line-height: var(--leading-tight, 1.25);
    letter-spacing: var(--tracking-tight, -0.025em);
    font-family: Georgia, serif;
}

/* Add a subtle gradient effect for the heading */
.welcome-heading {
    background: linear-gradient(135deg, var(--text-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    /* Fallback for browsers that don't support background-clip: text */
    color: var(--text-color);
}

/* Fallback for browsers without gradient text support */
@supports not (-webkit-background-clip: text) {
    .welcome-heading {
        background: none;
        color: var(--text-color);
    }
}

/* --- Welcome Secondary Heading --- */
.welcome-secondary-heading {
    font-size: var(--text-xl, 1.25rem);
    color: var(--text-secondary);
    margin: 0;
    font-weight: 400;
    line-height: var(--leading-relaxed, 1.625);
    opacity: 0.9;
    font-family: Georgia, serif;
}

/* --- Animations --- */
@keyframes welcomeFadeIn {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    .welcome-container {
        padding: 1.5rem;
        max-width: 90%;
    }

    .welcome-heading {
        font-size: clamp(1.5rem, 6vw, 2.5rem);
    }

    .welcome-secondary-heading {
        font-size: var(--text-lg, 1.125rem);
    }

    .welcome-content {
        gap: 0.75rem;
    }
}

@media (max-width: 480px) {
    .welcome-container {
        padding: 1rem;
    }

    .welcome-heading {
        font-size: clamp(1.25rem, 7vw, 2rem);
        line-height: var(--leading-snug, 1.375);
    }

    .welcome-secondary-heading {
        font-size: var(--text-base, 1rem);
    }
}

/* --- High Contrast Mode Support --- */
@media (prefers-contrast: high) {
    .welcome-heading {
        background: none;
        color: var(--text-color);
        -webkit-text-fill-color: unset;
    }

    .welcome-secondary-heading {
        opacity: 1;
        color: var(--text-color);
    }
}

/* --- Reduced Motion Support --- */
@media (prefers-reduced-motion: reduce) {
    .welcome-container {
        transition: opacity 0.1s ease;
    }

    .welcome-content {
        animation: none;
    }

    @keyframes welcomeFadeIn {

        0%,
        100% {
            opacity: 1;
            transform: translateY(0);
        }
    }
}

/* --- Dark Mode Adjustments --- */
.dark-mode .welcome-heading {
    background: linear-gradient(135deg, var(--text-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dark-mode .welcome-secondary-heading {
    color: var(--text-secondary);
    opacity: 0.95;
}

/* --- Focus and Accessibility --- */
.welcome-container:focus-within {
    outline: 2px solid var(--accent-color);
    outline-offset: 4px;
    border-radius: 8px;
}

/* --- Print Styles --- */
@media print {
    .welcome-container {
        position: static;
        transform: none;
        page-break-inside: avoid;
    }

    .welcome-heading {
        background: none;
        color: black;
        -webkit-text-fill-color: unset;
    }
}