/* Explain: App-specific component classes (buttons, cards, inputs). - */
.btn-gold {
    background-color: var(--color-gold);
    color: #ffffff;
    padding: 0.875rem 2rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-size: 0.875rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}
.btn-gold:hover {
    background-color: var(--color-gold-hover);
    transform: translateY(-2px);
}

.btn-outline-gold {
    background-color: transparent;
    border: 1px solid var(--color-gold);
    color: var(--color-gold);
    padding: 0.875rem 2rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-size: 0.875rem;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}
.btn-outline-gold:hover {
    background-color: var(--color-gold);
    color: #ffffff;
}

/* Architectural Card */
.arch-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    transition: all 0.4s ease;
}
.arch-card:hover {
    border-color: var(--color-gold);
    box-shadow: 0 10px 30px rgba(11, 22, 44, 0.05);
    transform: translateY(-4px);
}

/* Form inputs */
.arch-input {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(255,255,255,0.2);
    padding: 0.75rem 0;
    color: #ffffff;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}
.arch-input:focus {
    outline: none;
    border-bottom-color: var(--color-gold);
}
.arch-input::placeholder {
    color: rgba(255,255,255,0.5);
}
.arch-input option {
    background-color: var(--color-navy);
    color: #ffffff;
}

.wa-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.3);
    z-index: 50;
    transition: transform 0.3s ease;
}
.wa-float:hover {
    transform: scale(1.1);
    color: white;
}