.solver-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.word-ladder-card {
    background: var(--bg-surface);
    backdrop-filter: blur(16px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    padding: 2.25rem 2rem;
    box-shadow: var(--shadow-sm);
}

.word-ladder-card:hover {
    box-shadow: var(--shadow-md);
}

.letters-hero-input {
    background: white;
    border-radius: 999px;
    padding: 0.75rem 1.25rem;
    border: 1px solid rgba(148, 163, 184, 0.6);
    box-shadow: 0 4px 12px rgba(15,23,42,0.06);
}

.letters-hero-input input {
    font-size: 1.1rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.results-area {
    max-width: 900px;
    margin: 0 auto;
}

.results-card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem 1.4rem;
}

.ladder-path {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 2rem 1rem;
}

.ladder-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.ladder-word {
    padding: 0.75rem 1.25rem;
    background: white;
    border: 2px solid var(--accent-primary);
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent-primary);
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.15);
    min-width: 80px;
    text-align: center;
}

.ladder-word:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.ladder-word.start {
    background: #d1fae5;
    border-color: #10b981;
    color: #065f46;
}

.ladder-word.start:hover {
    background: #10b981;
    color: white;
}

.ladder-word.end {
    background: #fee2e2;
    border-color: #ef4444;
    color: #991b1b;
}

.ladder-word.end:hover {
    background: #ef4444;
    color: white;
}

.ladder-step-number {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.ladder-arrow {
    font-size: 1.5rem;
    color: var(--text-muted);
    margin: 0 0.25rem;
}

.no-path {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.no-path-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* Toast Styles */
.toast-success {
    border-left: 4px solid #10b981;
}

.toast-error {
    border-left: 4px solid #ef4444;
}

.toast-warning {
    border-left: 4px solid #f59e0b;
}

.toast-info {
    border-left: 4px solid var(--accent-primary);
}

@media (max-width: 767.98px) {
    .word-ladder-card {
        padding: 1.75rem 1.25rem;
    }
    .ladder-path {
        gap: 0.5rem;
        padding: 1.5rem 0.5rem;
    }
    .ladder-word {
        font-size: 1rem;
        padding: 0.6rem 1rem;
        min-width: 70px;
    }
    .ladder-arrow {
        font-size: 1.2rem;
    }
    .ladder-step-number {
        font-size: 0.7rem;
    }
}