/* ===================================
   REUSABLE COMPONENTS
   AppSec Landing - Codeby School
   =================================== */

/* ===========================
   CONTAINER
   =========================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ===========================
   BUTTONS
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-primary);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

/* Primary Button */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
    color: var(--dark-bg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 255, 136, 0.3);
    color: var(--dark-bg); /* Сохраняем тёмный текст */
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 5px 15px rgba(0, 255, 136, 0.2);
}

/* Shine effect on primary button */
.btn-primary::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

/* Secondary Button */
.btn-secondary {
    background: transparent;
    border: 2px solid var(--primary-green);
    color: var(--primary-green);
}

.btn-secondary::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--primary-green);
    transition: left var(--transition-base);
    z-index: -1;
}

.btn-secondary:hover::before {
    left: 0;
}

.btn-secondary:hover {
    color: var(--dark-bg);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
}

/* Button Sizes */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Disabled state */
.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ===========================
   CARDS
   =========================== */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-base);
}

.card:hover {
    border-color: var(--primary-green);
    box-shadow: var(--shadow-primary);
    transform: translateY(-5px);
}

/* Card with icon */
.card-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-green-10);
    border-radius: var(--border-radius-lg);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.card-icon svg {
    width: 30px;
    height: 30px;
    fill: var(--primary-green);
}

.card h3 {
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===========================
   FORMS
   =========================== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
textarea {
    width: 100%;
    padding: 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all var(--transition-base);
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px var(--primary-green-10);
}

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

/* Required field indicator - red asterisk in form fields */
.form-group:has(input[required]) {
    position: relative;
}

.form-group:has(input[required])::after {
    content: '*';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--danger);
    font-size: 1.2rem;
    font-weight: bold;
    pointer-events: none;
}

/* Checkbox & Radio */
.checkbox-group,
.radio-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

input[type="checkbox"],
input[type="radio"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary-green);
    flex-shrink: 0;
    margin-top: 2px;
}

.checkbox-group label,
.radio-group label {
    margin: 0;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Form Checkbox (consent style) */
.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin: 0.5rem 0;
}

.form-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    min-width: 20px;
    margin-top: 2px;
    accent-color: var(--primary-green);
    cursor: pointer;
}

.form-checkbox label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    cursor: pointer;
}

.form-checkbox label a {
    color: var(--primary-green);
    text-decoration: underline;
    transition: opacity 0.3s;
}

.form-checkbox label a:hover {
    opacity: 0.8;
}

.form-checkbox.error {
    animation: shake 0.5s;
}

.form-checkbox.error label {
    color: var(--danger);
}

/* Disabled submit button */
.form-submit-btn:disabled {
    background: var(--border-color);
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.6;
    transform: none;
    box-shadow: none;
}

.form-submit-btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* Submit button wrapper with tooltip */
.submit-wrapper {
    position: relative;
    display: inline-block;
    width: 100%;
}

.submit-tooltip {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    bottom: calc(100% + 10px);
    left: 0;
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--warning);
    color: var(--text-secondary);
    min-height: 48px;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    transition: opacity 0.3s, visibility 0.3s;
    z-index: 10;
}

.submit-tooltip::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--warning);
}

.submit-wrapper:hover .submit-tooltip {
    visibility: visible;
    opacity: 1;
}

.submit-wrapper:has(.form-submit-btn:not(:disabled)) .submit-tooltip {
    display: none;
}

/* Form error state */
.form-group.error input,
.form-group.error textarea {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(255, 51, 102, 0.15);
    animation: shake 0.4s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-5px); }
    40% { transform: translateX(5px); }
    60% { transform: translateX(-5px); }
    80% { transform: translateX(5px); }
}

.error-message {
    color: var(--danger);
    font-size: var(--font-size-sm);
    margin-top: 0.5rem;
}

/* ===========================
   TOGGLE SWITCH
   =========================== */
.toggle {
    display: inline-flex;
    gap: 0.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 0.5rem;
}

.toggle-btn {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    border-radius: var(--border-radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.toggle-btn.active {
    background: var(--primary-green);
    color: var(--dark-bg);
}

.toggle-btn:hover:not(.active) {
    color: var(--text-primary);
}

/* ===========================
   BADGES
   =========================== */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--border-radius-sm);
}

.badge-success {
    background: var(--primary-green);
    color: var(--dark-bg);
}

.badge-danger {
    background: var(--danger);
    color: var(--text-primary);
}

.badge-warning {
    background: var(--warning);
    color: var(--dark-bg);
}

/* ===========================
   CHECK LIST
   =========================== */
.check-list {
    list-style: none;
}

.check-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 0;
    color: var(--text-secondary);
}

.check-list li::before {
    content: "✓";
    color: var(--primary-green);
    font-weight: bold;
    font-size: 1.1rem;
    background: var(--success-bg);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-full);
    flex-shrink: 0;
}

/* ===========================
   PROGRESS BAR (Scroll)
   =========================== */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-green), var(--secondary-green));
    z-index: var(--z-progress);
    transition: width var(--transition-base);
    box-shadow: var(--shadow-glow);
}

/* ===========================
   GRID LAYOUTS
   =========================== */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ===========================
   FLEX UTILITIES
   =========================== */
.flex { display: flex; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }

.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }

.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }

.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ===========================
   DISPLAY UTILITIES
   =========================== */
.hidden { display: none !important; }
.d-block { display: block; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

/* ===========================
   SPACING UTILITIES
   =========================== */
.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* ===========================
   ACCESSIBILITY
   =========================== */
/* Visible focus for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

/* Remove outline for mouse clicks */
*:focus:not(:focus-visible) {
    outline: none;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===========================
   PROMO BLOCK (Temporary Promotion)
   =========================== */
@keyframes promoGlow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(0, 255, 136, 0.3), 0 0 40px rgba(0, 255, 136, 0.1);
    }
    50% {
        box-shadow: 0 0 30px rgba(0, 255, 136, 0.5), 0 0 60px rgba(0, 255, 136, 0.2);
    }
}

.promo-block {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    animation: promoGlow 3s ease-in-out infinite;
    max-width: 420px;
    width: 100%;
}

.promo-block::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    padding: 2px;
    background: linear-gradient(135deg, #00ff88, #ff00ff, #00ff88);
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.promo-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.promo-badge {
    background: linear-gradient(135deg, #00ff88, #00cc6a);
    color: #000;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.promo-discount {
    color: #ff00ff;
    font-weight: bold;
    font-size: 1.1rem;
}

.promo-title {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #fff, #00ff88);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
}

.promo-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    text-align: center;
}

.promo-details {
    margin-bottom: 1.5rem;
}

.promo-code-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    text-align: center;
}

.promo-code-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.promo-code {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.2), rgba(255, 0, 255, 0.2));
    border: 2px solid #00ff88;
    color: #fff;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-size: 1.5rem;
    font-weight: 800;
    font-family: 'Courier New', monospace;
    letter-spacing: 3px;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.promo-code:hover {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.3), rgba(255, 0, 255, 0.3));
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.4);
}

.promo-code:active {
    transform: scale(0.98);
}

.promo-code-hint {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-muted);
    font-size: 0.75rem;
}

.promo-code-hint svg {
    opacity: 0.7;
}

.promo-deadline {
    color: #ff00ff;
    font-weight: 600;
    font-size: 0.95rem;
    text-align: center;
}

.promo-courses {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    line-height: 1.5;
    text-align: center;
}

.promo-courses strong {
    color: var(--text-primary);
}

.promo-cta {
    display: block;
    width: 100%;
    background: linear-gradient(135deg, #00ff88, #00cc6a);
    color: #000 !important;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: bold;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.promo-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
    color: #000 !important;
}

.promo-note {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 1rem;
    text-align: center;
}

.copy-toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: linear-gradient(135deg, #00ff88, #00cc6a);
    color: #000;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 10px 40px rgba(0, 255, 136, 0.4);
    z-index: 10000;
    opacity: 0;
    transition: all 0.3s ease;
}

.copy-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}