/* ===========================
   BUTTONS
   =========================== */
.btn {
    font-family: var(--font-header);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-decoration: none;
    text-transform: uppercase;
    padding: 15px 40px;
    border-radius: 2px;
    transition: all 0.3s ease;
    display: inline-block;
    cursor: pointer;
}

.btn-primary {
    background: var(--gold);
    color: #000;
    border: none;
}

.btn-primary:hover {
    background: var(--gold-hover);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.4);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--gold);
    border: 2px solid var(--gold);
}

.btn-secondary:hover {
    background: var(--gold);
    color: #000;
}

.btn-sm {
    font-size: 14px;
    padding: 10px 24px;
    margin-top: auto;
}

.btn-block {
    width: 100%;
    text-align: center;
}

.btn-large {
    padding: 18px 56px;
    font-size: 18px;
    letter-spacing: 2px;
}

.btn-small {
    font-family: var(--font-header);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    padding: 6px 12px;
    border: none;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-edit {
    background: var(--gold);
    color: #000;
}

.btn-edit:hover {
    background: #f0c24d;
    transform: translateY(-1px);
}

.btn-delete {
    background: #d32f2f;
    color: var(--white);
}

.btn-delete:hover {
    background: #e53935;
    transform: translateY(-1px);
}

/* ===========================
   CARDS
   =========================== */
.pillar-card {
    background: var(--navy);
    border: 1px solid var(--gray);
    border-radius: 2px;
    padding: var(--spacing-l);
    text-align: center;
    transition: all 0.3s ease;
}

.pillar-card:hover {
    border-color: var(--gold);
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.pillar-icon {
    color: var(--gold);
    margin-bottom: var(--spacing-m);
}

.pillar-title {
    font-family: var(--font-header);
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--white);
    margin-bottom: var(--spacing-s);
}

.pillar-text {
    font-size: 16px;
    line-height: 1.6;
    color: var(--light-gray);
    margin-bottom: var(--spacing-m);
}

.pillar-link {
    font-family: var(--font-header);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--gold);
    text-decoration: none;
    transition: color 0.3s ease;
}

.pillar-link:hover {
    color: var(--gold-hover);
}

/* ===========================
   BADGES
   =========================== */
.badge {
    display: inline-block;
    font-family: var(--font-header);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 4px 10px;
    background: var(--gold);
    color: #000;
    border-radius: 2px;
    text-transform: uppercase;
}

.badge-icon {
    font-family: var(--font-header);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    color: #000;
    background: var(--light-gray);
    padding: 2px 6px;
    border-radius: 2px;
}

.video-category {
    font-family: var(--font-header);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    color: #000;
    padding: 4px 12px;
    border-radius: 12px;
}

.skill-beginner {
    background: #4a9c4a;
    color: #fff;
}

.skill-intermediate {
    background: #d4af37;
    color: #000;
}

.skill-advanced {
    background: #c94a4a;
    color: #fff;
}

.video-aircraft {
    font-family: var(--font-header);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--white);
    background: var(--gray);
    padding: 4px 12px;
    border-radius: 12px;
}

/* ===========================
   FORM ELEMENTS
   =========================== */
.form-label {
    font-family: var(--font-header);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--white);
    display: block;
    margin-bottom: var(--spacing-s);
}

.required {
    color: var(--gold);
    font-weight: 700;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--navy);
    border: 2px solid var(--gray);
    border-radius: 2px;
    color: var(--white);
    font-family: var(--font-body);
    font-size: 16px;
    transition: all 0.3s ease;
    display: block;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.15);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.6;
}

.form-help {
    display: block;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-top: var(--spacing-xs);
    font-style: italic;
}

.filter-select {
    width: 100%;
    padding: 12px 16px;
    background: var(--navy);
    border: 2px solid var(--gray);
    border-radius: 2px;
    color: var(--white);
    font-family: var(--font-body);
    font-size: 14px;
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.filter-select:focus {
    outline: none;
    border-color: var(--gold);
}

/* Input states for validation */
.form-input.valid {
    border-color: #4a9c4a;
}

.form-input.invalid {
    border-color: #c94a4a;
}

.form-input.loading {
    background-image: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMjAiIGhlaWdodD0iMjAiIHZpZXdCb3g9IjAgMCAyMCAyMCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48Y2lyY2xlIGN4PSIxMCIgY3k9IjEwIiByPSI4IiBzdHJva2U9IiNkNGFmMzciIHN0cm9rZS13aWR0aD0iMiIgZmlsbD0ibm9uZSIgc3Ryb2tlLWRhc2hhcnJheT0iMjAgMjAiIHN0cm9rZS1saW5lY2FwPSJyb3VuZCI+PGFuaW1hdGVUcmFuc2Zvcm0gYXR0cmlidXRlTmFtZT0idHJhbnNmb3JtIiB0eXBlPSJyb3RhdGUiIGZyb209IjAgMTAgMTAiIHRvPSIzNjAgMTAgMTAiIGR1cj0iMXMiIHJlcGVhdENvdW50PSJpbmRlZmluaXRlIi8+PC9jaXJjbGU+PC9zdmc+');
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px 20px;
}

/* Feedback messages */
.form-feedback {
    display: block;
    font-size: 13px;
    margin-top: 4px;
    font-weight: 500;
}

.form-feedback.valid {
    color: #4a9c4a;
}

.form-feedback.invalid {
    color: #c94a4a;
}

.form-feedback.valid::before {
    content: '✓ ';
    font-weight: bold;
}

.form-feedback.invalid::before {
    content: '✗ ';
    font-weight: bold;
}

/* ===========================
   ICONS & INDICATORS
   =========================== */
.card-icon {
    font-size: 36px;
    margin-bottom: var(--spacing-m);
}

.stat-icon {
    font-size: 18px;
}

.play-icon {
    color: var(--gold);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.scroll-indicator:hover {
    opacity: 1;
}

.scroll-text {
    font-family: var(--font-header);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--gold);
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    color: var(--gold);
}

.scroll-indicator.hidden {
    opacity: 0;
    pointer-events: none;
}

/* ===========================
   ADMIN LINKS (Site-wide)
   =========================== */
.admin-link {
    font-family: var(--font-header);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--gold);
    text-decoration: none;
    padding: 8px 16px;
    border: 1px solid var(--gold);
    border-radius: 2px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.admin-link:hover {
    background: var(--gold);
    color: #000;
    transform: translateX(2px);
}