/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.8rem 2rem;
    font-family: var(--font-body);
    font-size: var(--fs-small);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: var(--ls-wide);
    border-radius: var(--border-radius);
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: var(--color-accent);
    color: #fff;
    border: 2px solid var(--color-accent);
}

.btn--primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(253, 102, 37, 0.3);
}

.btn--outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-border-light);
}

.btn--outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}

.btn--large {
    padding: 0.9rem 2.5rem;
    font-size: var(--fs-small);
}

.btn__icon {
    transition: transform var(--transition-base);
}

.btn:hover .btn__icon {
    transform: translateX(4px);
}

/* ===========================
   Cards
   =========================== */
.card {
    background: var(--color-bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all var(--transition-slow);
    border: 1px solid transparent;
}

.card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border);
    transform: translateY(-4px);
}

/* ===========================
   Form Elements
   =========================== */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: var(--fs-caption);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: var(--ls-wide);
    margin-bottom: 0.4rem;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    color: var(--color-text-primary);
    font-size: var(--fs-small);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-light);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-muted);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23666' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1.25rem center;
    padding-right: 3rem;
    cursor: pointer;
}

.form-select option {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.form-error {
    color: #ef4444;
    font-size: var(--fs-caption);
    margin-top: 0.25rem;
    display: none;
}

.form-group.has-error .form-error {
    display: block;
}

.form-group.has-error .form-input,
.form-group.has-error .form-textarea,
.form-group.has-error .form-select {
    border-color: #ef4444;
}

/* ===========================
   Badges & Tags
   =========================== */
.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-accent-light);
    color: var(--color-accent);
    font-size: var(--fs-caption);
    font-weight: 500;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: var(--ls-wide);
}

/* ===========================
   Alert Messages
   =========================== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius-sm);
    margin-bottom: 1.5rem;
    font-size: var(--fs-small);
}

.alert--success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #22c55e;
}

.alert--error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

/* ===========================
   Loading Spinner
   =========================== */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: none;
}

.btn.is-loading .spinner {
    display: inline-block;
}

.btn.is-loading .btn__text {
    opacity: 0;
}