/* SpaceX-Inspired Dark UI - Components
 * Reusable UI components (buttons, forms, cards, navigation, dialogs, toasts)
 * BEM naming convention
 */

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    text-align: center;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 2px solid #333333;
    border-radius: 4px;
    background: transparent;
    color: #333333;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
    min-height: 44px;  /* WCAG touch target */
    font-family: var(--font-family);
}

.btn:hover {
    background: #333333;
    color: #ffffff;
}

.btn:focus {
    outline: 2px solid #0066cc;
    outline-offset: 2px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button variants */
.btn--primary {
    background: #0066cc;
    border-color: #0066cc;
    color: #ffffff;
}

.btn--primary:hover {
    background: #0052a3;
    border-color: #0052a3;
}

.btn--danger {
    background: var(--color-red);
    border-color: var(--color-red);
    color: #1a1a1a;
}

.btn--danger:hover {
    background: #cc3333;
    border-color: #cc3333;
}

.btn--success {
    background: var(--color-green);
    border-color: var(--color-green);
    color: #ffffff;
}

.btn--success:hover {
    background: #33cc33;
    border-color: #33cc33;
}

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

.btn--small {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    min-height: 36px;
}

.btn--large {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-lg);
    min-height: 52px;
}

/* ========================================
   FORMS
   ======================================== */
.form-group {
    margin-bottom: var(--spacing-6);
}

label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: #333333;
    margin-bottom: var(--spacing-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="date"],
input[type="time"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: var(--spacing-4);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    background: #ffffff;
    border: 1px solid #cccccc;
    color: #333333;
    outline: none;
    transition: border-color var(--duration-fast) var(--ease-out);
    min-height: 44px;  /* WCAG touch target */
}

input::placeholder,
textarea::placeholder {
    color: #999999;
}

input:focus,
textarea:focus,
select:focus {
    border-color: #0066cc;
}

input:disabled,
textarea:disabled,
select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Invalid state */
input:invalid:not(:placeholder-shown),
textarea:invalid:not(:placeholder-shown) {
    border-color: var(--color-red);
}

/* Form errors */
.form-error {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-red);
    margin-top: var(--spacing-2);
}

.form-group--error input,
.form-group--error textarea,
.form-group--error select {
    border-color: var(--color-red);
}

/* Checkbox and radio */
input[type="checkbox"],
input[type="radio"] {
    width: auto;
    margin-right: var(--spacing-2);
    min-height: auto;
}

.form-check {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-4);
}

.form-check label {
    text-transform: none;
    letter-spacing: normal;
    font-weight: var(--font-weight-normal);
    margin-bottom: 0;
}

/* ========================================
   ERROR & SUCCESS MESSAGES
   ======================================== */
.error-message,
.success-message,
.info-message {
    padding: var(--spacing-4);
    border: 1px solid;
    margin-bottom: var(--spacing-6);
    font-size: var(--font-size-base);
}

.error-message {
    background: rgba(255, 68, 68, 0.1);
    border-color: var(--color-red);
    color: var(--color-red);
}

.success-message {
    background: rgba(68, 255, 68, 0.1);
    border-color: #22aa22;
    color: #22aa22;
}

.info-message {
    background: rgba(0, 102, 204, 0.1);
    border-color: #0066cc;
    color: #0066cc;
}

/* ========================================
   LOGIN PAGE LAYOUT
   ======================================== */
.login-container {
    max-width: 400px;
    margin: var(--spacing-12) auto;
    padding: var(--spacing-8);
    background-color: #f9f9f9;
    border: 1px solid #e0e0e0;
}

.login-container h2 {
    margin-bottom: var(--spacing-6);
    text-align: center;
    font-size: var(--font-size-xl);
}

.login-form {
    margin-top: var(--spacing-6);
}

/* ========================================
   CARDS
   ======================================== */
.card {
    background: #ffffff;
    border: 1px solid #e0e0e0;
    padding: var(--spacing-6);
    margin-bottom: var(--spacing-6);
    transition: all var(--duration-fast) var(--ease-out);
}

.card:hover {
    background: #f9f9f9;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.card__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: #1a1a1a;
    margin-bottom: var(--spacing-4);
}

.card__subtitle {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: #666666;
    margin-bottom: var(--spacing-3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card__content {
    color: #333333;
    line-height: var(--line-height-normal);
}

.card__footer {
    margin-top: var(--spacing-6);
    padding-top: var(--spacing-4);
    border-top: 1px solid #e0e0e0;
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

/* ========================================
   NAVIGATION BAR
   ======================================== */
.navbar {
    position: sticky;
    top: 0;
    background: #2d7a3e;
    border-bottom: 1px solid #25652f;
    padding: var(--spacing-4) var(--spacing-6);
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-4);
}

.logo {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin: 0;
}

.logo-image {
    height: 32px;
    width: auto;
    display: block;
}

.logo-text {
    display: inline-block;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-8);
    list-style: none;
    align-items: center;
}

.nav-link {
    color: #e8f5e9;
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: var(--font-size-sm);
    transition: color var(--duration-fast) var(--ease-out);
    padding: var(--spacing-2) var(--spacing-3);
}

.nav-link:hover,
.nav-link.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

#username-display {
    color: #e8f5e9;
    font-weight: var(--font-weight-normal);
    margin-right: var(--spacing-4);
}

#user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

/* Logout button styling for navbar */
.navbar .btn,
#logout-btn {
    border-color: #ffffff;
    color: #ffffff;
    background: transparent;
}

.navbar .btn:hover,
#logout-btn:hover {
    background: #ffffff;
    color: #2d7a3e;
    border-color: #ffffff;
}

/* Hamburger menu button (hidden on desktop) */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-2);
    z-index: 1001;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 25px;
    height: 2px;
    background: #ffffff;
    transition: all var(--duration-normal) var(--ease-out);
}

.hamburger {
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

/* Hamburger animation when active */
.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.nav-toggle.active .hamburger::after {
    transform: rotate(-45deg);
    top: 0;
}

/* Mobile menu */
@media (max-width: 767px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #2d7a3e;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--duration-normal) var(--ease-out);
        border-bottom: 1px solid #25652f;
    }

    .nav-menu.active {
        max-height: 500px;
    }

    .nav-menu li {
        width: 100%;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-link {
        display: block;
        width: 100%;
        padding: var(--spacing-4) var(--spacing-6);
    }

    #logout-btn {
        width: calc(100% - var(--spacing-12));
        margin: var(--spacing-4) var(--spacing-6);
    }
}

/* ========================================
   DIALOGS / MODALS
   ======================================== */
.dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: var(--spacing-4);
}

.dialog {
    background: #f9f9f9;
    border: 1px solid #e0e0e0;
    max-width: 500px;
    width: 100%;
    padding: var(--spacing-8);
    max-height: 90vh;
    overflow-y: auto;
}

.dialog__header {
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-4);
    border-bottom: 1px solid #e0e0e0;
}

.dialog__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: #1a1a1a;
    margin: 0;
}

.dialog__content {
    margin-bottom: var(--spacing-6);
    color: #333333;
}

.dialog__footer {
    display: flex;
    gap: var(--spacing-4);
    justify-content: flex-end;
    padding-top: var(--spacing-4);
    border-top: 1px solid #e0e0e0;
}

/* ========================================
   TOAST NOTIFICATIONS
   ======================================== */
.toast-container {
    position: fixed;
    top: var(--spacing-6);
    right: var(--spacing-6);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    max-width: 400px;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-4) var(--spacing-6);
    background: #f9f9f9;
    border: 1px solid;
    transform: translateX(calc(100% + var(--spacing-6)));
    transition: transform var(--duration-normal) var(--ease-out);
}

.toast--show {
    transform: translateX(0);
}

.toast__icon {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    flex-shrink: 0;
}

.toast__message {
    flex: 1;
    color: #1a1a1a;
    font-size: var(--font-size-base);
}

.toast__close {
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    cursor: pointer;
    color: #666666;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--duration-fast) var(--ease-out);
}

.toast__close:hover {
    color: #1a1a1a;
}

/* Toast types */
.toast--success {
    border-color: var(--color-green);
}

.toast--success .toast__icon {
    color: var(--color-green);
}

.toast--error {
    border-color: var(--color-red);
}

.toast--error .toast__icon {
    color: var(--color-red);
}

.toast--info {
    border-color: #cccccc;
}

.toast--info .toast__icon {
    color: #666666;
}

/* Mobile responsive */
@media (max-width: 767px) {
    .toast-container {
        right: var(--spacing-4);
        left: var(--spacing-4);
        max-width: none;
    }

    .toast {
        padding: var(--spacing-3) var(--spacing-4);
    }

    .dialog {
        padding: var(--spacing-6);
    }
}

/* ========================================
   LOADING SPINNERS
   ======================================== */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #e0e0e0;
    border-radius: 50%;
    border-top-color: #1a1a1a;
    animation: spinner-spin 0.6s linear infinite;
}

.spinner--large {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

@keyframes spinner-spin {
    to {
        transform: rotate(360deg);
    }
}

/* Loading overlay for full-screen loading */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-overlay__content {
    background: #f9f9f9;
    border: 1px solid #e0e0e0;
    padding: var(--spacing-8);
    text-align: center;
}

.loading-overlay__spinner {
    margin: 0 auto var(--spacing-4);
}

/* Loading state for components */
.is-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.is-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    border: 3px solid #e0e0e0;
    border-radius: 50%;
    border-top-color: #1a1a1a;
    animation: spinner-spin 0.6s linear infinite;
}