/* =========================================================================
   ARVISTA PREMIUM UI SYSTEM
   Unified styles for modals, dialogs, toasts, inputs, and processing bars.
   ========================================================================= */

/* --- Typography & Global Vars (Fallback if not loaded) --- */
:root {
    --premium-bg: rgba(15, 15, 15, 0.85);
    --premium-glass: rgba(255, 255, 255, 0.03);
    --premium-border: rgba(0, 229, 255, 0.2);
    --premium-glow: rgba(0, 229, 255, 0.5);
    --premium-text: #FFFFFF;
    --premium-text-muted: #A0A0A0;
    --premium-success: #00FF88;
    --premium-error: #FF3366;
    --premium-warning: #FFBB00;
    --premium-info: #00E5FF;
    --premium-border-radius: 16px;
    --premium-transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* =========================================================================
   MODAL / DIALOG BACKDROP & CONTAINER
   ========================================================================= */
.premium-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.premium-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.premium-modal {
    box-sizing: border-box;
    background: var(--premium-bg);
    border: 1px solid var(--premium-border);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 229, 255, 0.1);
    border-radius: var(--premium-border-radius);
    width: 90%;
    max-width: 420px;
    padding: 32px;
    transform: scale(0.95) translateY(10px);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.4s ease;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    overflow: hidden;
}

@media (max-width: 480px) {
    .premium-modal {
        width: 95%;
        padding: 24px;
    }
}

.premium-modal::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--premium-info), transparent);
    opacity: 0.5;
}

.premium-modal-overlay.active .premium-modal {
    transform: scale(1) translateY(0);
    opacity: 1;
}

/* Modal Content */
.premium-modal-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    margin: 0 auto 8px auto;
    background: rgba(255, 255, 255, 0.05);
    font-size: 24px;
}
.premium-modal-icon.info { color: var(--premium-info); background: rgba(0, 229, 255, 0.1); box-shadow: 0 0 15px rgba(0, 229, 255, 0.2); }
.premium-modal-icon.success { color: var(--premium-success); background: rgba(0, 255, 136, 0.1); box-shadow: 0 0 15px rgba(0, 255, 136, 0.2); }
.premium-modal-icon.error { color: var(--premium-error); background: rgba(255, 51, 102, 0.1); box-shadow: 0 0 15px rgba(255, 51, 102, 0.2); }
.premium-modal-icon.warning { color: var(--premium-warning); background: rgba(255, 187, 0, 0.1); box-shadow: 0 0 15px rgba(255, 187, 0, 0.2); }
.premium-modal-icon.brand { width: 80px; height: 80px; background: transparent; border-radius: 0; box-shadow: none; margin-bottom: 12px; }

.premium-modal-title {
    color: var(--premium-text);
    font-size: 1.25rem;
    font-weight: 600;
    text-align: center;
    margin: 0;
    letter-spacing: -0.02em;
}

.premium-modal-message {
    color: var(--premium-text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
    text-align: center;
    margin: 0;
}

/* Modal Actions */
.premium-modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.premium-modal-actions button {
    flex: 1;
}

/* =========================================================================
   PREMIUM BUTTONS
   ========================================================================= */
.prm-btn {
    appearance: none;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--premium-text);
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--premium-transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    font-family: inherit;
    outline: none;
}

.prm-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

.prm-btn:active:not(:disabled) {
    transform: translateY(1px);
}

.prm-btn:focus-visible {
    box-shadow: 0 0 0 2px var(--bg-dark), 0 0 0 4px var(--premium-info);
}

.prm-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.prm-btn.primary {
    background: var(--premium-info);
    color: #000;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(0, 229, 255, 0.2);
}

.prm-btn.primary:hover:not(:disabled) {
    background: #00f0ff;
    box-shadow: 0 6px 20px rgba(0, 229, 255, 0.4);
}

.prm-btn.danger {
    background: rgba(255, 51, 102, 0.1);
    color: var(--premium-error);
    border-color: rgba(255, 51, 102, 0.2);
}

.prm-btn.danger:hover:not(:disabled) {
    background: var(--premium-error);
    color: #fff;
    box-shadow: 0 4px 15px rgba(255, 51, 102, 0.3);
}

/* =========================================================================
   PREMIUM INPUTS
   ========================================================================= */
.prm-input-wrapper {
    position: relative;
    width: 100%;
}

.prm-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    padding: 14px 16px;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: var(--premium-transition);
    outline: none;
    box-sizing: border-box;
    font-family: inherit;
}

.prm-input:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

.prm-input:focus {
    border-color: var(--premium-info);
    box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.15);
    background: rgba(0, 0, 0, 0.5);
}

.prm-input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

/* =========================================================================
   TOAST NOTIFICATIONS
   ========================================================================= */
.prm-toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999999;
    display: flex;
    flex-direction: column;
    gap: 12px;
    pointer-events: none;
}

.prm-toast {
    background: var(--premium-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-left: 4px solid var(--premium-info);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    padding: 16px 20px;
    border-radius: 8px;
    color: #fff;
    font-size: 0.9rem;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    width: 320px;
    pointer-events: auto;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    
    transform: translateX(120%);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.4s ease;
}

.prm-toast.show {
    transform: translateX(0);
    opacity: 1;
}

.prm-toast.success { border-left-color: var(--premium-success); }
.prm-toast.error { border-left-color: var(--premium-error); }
.prm-toast.warning { border-left-color: var(--premium-warning); }
.prm-toast.processing { border-left-color: var(--premium-info); }

.prm-toast-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 2px;
}
.prm-toast.success .prm-toast-icon { color: var(--premium-success); }
.prm-toast.error .prm-toast-icon { color: var(--premium-error); }
.prm-toast.warning .prm-toast-icon { color: var(--premium-warning); }
.prm-toast.processing .prm-toast-icon { color: var(--premium-info); }

.prm-toast-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.prm-toast-title {
    font-weight: 600;
    color: var(--premium-text);
}

.prm-toast-message {
    color: var(--premium-text-muted);
    font-size: 0.85rem;
    line-height: 1.4;
}

.prm-toast-close {
    background: none;
    border: none;
    color: var(--premium-text-muted);
    cursor: pointer;
    padding: 4px;
    margin: -4px;
    border-radius: 4px;
    transition: color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.prm-toast-close:hover {
    color: var(--premium-text);
    background: rgba(255, 255, 255, 0.1);
}

/* Toast Progress Bar for auto-dismiss */
.prm-toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    background: var(--premium-info);
    width: 100%;
    transform-origin: left;
    box-shadow: 0 0 8px var(--premium-info);
}

.prm-toast.success .prm-toast-progress { background: var(--premium-success); box-shadow: 0 0 8px var(--premium-success); }
.prm-toast.error .prm-toast-progress { background: var(--premium-error); box-shadow: 0 0 8px var(--premium-error); }
.prm-toast.warning .prm-toast-progress { background: var(--premium-warning); box-shadow: 0 0 8px var(--premium-warning); }


/* =========================================================================
   PROCESSING & PROGRESS BARS (NEON LIGHT TRAVEL)
   ========================================================================= */
.prm-progress-container {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.5);
}

.prm-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #0088ff, var(--premium-info));
    border-radius: 10px;
    width: 0%;
    transition: width 0.4s ease-out;
    position: relative;
}

.prm-progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: prm-shimmer 1.5s infinite linear;
}

@keyframes prm-shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Indeterminate / Traveling Neon Light for pure processing states */
.prm-processing-bar {
    width: 100%;
    height: 4px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.prm-processing-light {
    position: absolute;
    top: 0;
    left: -50%;
    height: 100%;
    width: 50%;
    background: linear-gradient(90deg, transparent, var(--premium-info), transparent);
    box-shadow: 0 0 10px var(--premium-info);
    animation: prm-travel 1.5s infinite ease-in-out;
    border-radius: 4px;
}

@keyframes prm-travel {
    0% { left: -50%; }
    100% { left: 100%; }
}

/* =========================================================================
   STEP CARDS (PREMIUM REDESIGN)
   ========================================================================= */
.prm-step-card {
    background: rgba(20, 20, 20, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 20px;
    transition: var(--premium-transition);
    position: relative;
    overflow: hidden;
}

.prm-step-card.active {
    border-color: rgba(0, 229, 255, 0.3);
    background: rgba(0, 229, 255, 0.02);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.prm-step-card.active::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--premium-info);
    box-shadow: 0 0 10px var(--premium-info);
}

.prm-step-card.completed {
    border-color: rgba(0, 255, 136, 0.2);
    opacity: 0.7;
}

.prm-step-card.completed::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--premium-success);
}