/**
 * @file intro.css
 * @description Intro screen and Import screen styles
 *
 * @requires base.css (CSS variables)
 * @requires components.css (intro-btn, start-btn)
 * @usedBy index.php (#intro-screen, #import-screen)
 *
 * @status COMPLETE
 */

/* ==================== INTRO SCREEN ==================== */
#intro-screen {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    min-height: 100vh;
    padding-top: 0;
}

.intro-content {
    max-width: 400px;
}

.intro-icon {
    font-size: 3rem;
    margin-bottom: 12px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.intro-title {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    font-weight: 300;
    margin-bottom: 6px;
    letter-spacing: 2px;
}

.intro-tagline {
    font-size: 0.95rem;
    opacity: 0.6;
    margin-bottom: 30px;
    font-style: italic;
}

.intro-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 30px;
}

.intro-feature {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 0.9rem;
    opacity: 0.8;
}

.feature-icon {
    font-size: 1.1rem;
}

.intro-hint {
    margin-top: 25px;
    font-size: 0.7rem;
    opacity: 0.35;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

/* ==================== IMPORT SCREEN ==================== */
#import-screen {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    min-height: 100vh;
    padding-top: 0;
}

.import-content {
    max-width: 420px;
    width: 100%;
}

.import-title {
    font-size: clamp(1.3rem, 4vw, 1.6rem);
    font-weight: 300;
    margin-bottom: 6px;
}

.import-subtitle {
    font-size: 0.9rem;
    opacity: 0.6;
    margin-bottom: 25px;
}

/* Import Zone */
.import-zone {
    border: 2px dashed rgba(67, 97, 238, 0.4);
    border-radius: 16px;
    padding: 35px 25px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
    background: rgba(67, 97, 238, 0.02);
    cursor: pointer;
}

.import-zone:hover,
.import-zone.dragover {
    border-color: var(--primary);
    background: rgba(67, 97, 238, 0.08);
    transform: scale(1.01);
}

.import-icon {
    font-size: 2.2rem;
    margin-bottom: 10px;
    opacity: 0.6;
}

.import-text {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 6px;
}

.import-hint {
    font-size: 0.75rem;
    opacity: 0.5;
}

.file-input {
    display: none;
}

.import-status {
    margin-top: 15px;
    padding: 12px 20px;
    border-radius: 8px;
    display: none;
    font-size: 0.9rem;
}

.import-status.success {
    display: block;
    background: rgba(6, 214, 160, 0.15);
    color: var(--success);
}

.import-status.error {
    display: block;
    background: rgba(239, 71, 111, 0.15);
    color: #ef476f;
}