/* ===================================
   NEXAU CHATBOT - DESIGN SYSTEM
   =================================== */

:root {
    /* Brand Colors */
    --color-bg: #ffffff;
    --color-text: #030f24;
    --color-primary: #1662f3;
    --color-primary-hover: #1254d4;
    --color-secondary: #baddff;
    --color-secondary-light: #e8f4ff;

    /* Neutral Colors */
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Typography */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* ===================================
   RESET & BASE
   =================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-gray-50);
    min-height: 100vh;
    overflow: hidden;
}

/* ===================================
   SCREENS
   =================================== */

.screen {
    display: none;
    width: 100%;
    height: 100vh;
}

.screen.active {
    display: flex;
}

/* ===================================
   REGISTER SCREEN
   =================================== */

#register-screen {
    background: linear-gradient(135deg, var(--color-secondary-light) 0%, var(--color-bg) 50%, var(--color-bg) 100%);
    justify-content: flex-start;
    align-items: center;
    padding: var(--space-lg);
    overflow-y: auto;
}

.register-container {
    width: 100%;
    max-width: 520px;
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: visible;
    animation: slideUp 0.5s ease-out;
    margin: auto;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.register-header {
    padding: var(--space-md) var(--space-lg) 0;
    text-align: center;
}

.register-logo {
    height: 32px;
    width: auto;
}

.register-content {
    padding: var(--space-lg);
}

.register-content h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text);
    text-align: center;
    margin-bottom: var(--space-md);
    line-height: 1.3;
}

.register-subtitle {
    color: var(--color-gray-600);
    text-align: center;
    margin-bottom: var(--space-md);
    font-size: var(--font-size-sm);
}

/* Benefits List */
.benefits-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-secondary-light);
    border-radius: var(--radius-md);
    transition: transform var(--transition-fast);
}

.benefit-item:hover {
    transform: translateX(4px);
}

.benefit-icon {
    font-size: 1.2rem;
    line-height: 1;
}

.benefit-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.benefit-text strong {
    font-weight: 600;
    color: var(--color-text);
}

.benefit-text span {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* Register Form */
.register-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-group label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-700);
}

.form-group input {
    padding: var(--space-sm) var(--space-md);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(22, 98, 243, 0.1);
}

.form-group input::placeholder {
    color: var(--color-gray-400);
}

.btn-primary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    width: 100%;
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
    margin-top: var(--space-xs);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
}

.privacy-note {
    margin-top: var(--space-lg);
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* Checkbox Group */
.checkbox-group {
    margin-top: var(--space-sm);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    position: relative;
    padding-left: 32px;
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    left: 0;
    top: 2px;
    height: 20px;
    width: 20px;
    background-color: var(--color-bg);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.checkbox-label:hover .checkmark {
    border-color: var(--color-primary);
}

.checkbox-label input:checked~.checkmark {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-label input:checked~.checkmark:after {
    display: block;
}

.checkbox-text {
    line-height: 1.4;
}

.privacy-link {
    margin-top: var(--space-xs);
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    padding-left: 32px;
}

.privacy-link a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

.privacy-link a:hover {
    text-decoration: underline;
}

/* ===================================
   CHAT SCREEN
   =================================== */

#chat-screen {
    flex-direction: column;
    background: var(--color-gray-50);
}

.chat-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100vh;
    background: var(--color-bg);
}

/* Chat Header */
.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-gray-200);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.header-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.header-info {
    display: flex;
    flex-direction: column;
}

.header-title {
    font-weight: 600;
    color: var(--color-text);
}

.header-status {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: var(--radius-full);
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.btn-schedule {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-schedule:hover {
    background: var(--color-primary-hover);
    transform: scale(1.02);
}

/* Chat Messages */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.message {
    display: flex;
    gap: var(--space-md);
    max-width: 85%;
    animation: messageIn 0.3s ease-out;
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.message.assistant .message-avatar {
    overflow: hidden;
}

.message.assistant .message-avatar img {
    width: 36px;
    height: 36px;
    object-fit: cover;
    border-radius: var(--radius-full);
}

.message.user .message-avatar {
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.message-content {
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    line-height: 1.6;
}

.message.assistant .message-content {
    background: var(--color-gray-100);
    border-bottom-left-radius: var(--space-xs);
}

.message.user .message-content {
    background: var(--color-primary);
    color: white;
    border-bottom-right-radius: var(--space-xs);
}

.message-content p {
    margin-bottom: var(--space-sm);
}

.message-content p:last-child {
    margin-bottom: 0;
}

.message-content strong {
    font-weight: 600;
}

.message-content ul,
.message-content ol {
    margin: var(--space-sm) 0;
    padding-left: var(--space-lg);
}

.message-content li {
    margin-bottom: var(--space-xs);
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: var(--space-md);
    background: var(--color-gray-100);
    border-radius: var(--radius-lg);
    width: fit-content;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--color-gray-400);
    border-radius: var(--radius-full);
    animation: typing 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) {
    animation-delay: 0s;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {

    0%,
    60%,
    100% {
        transform: translateY(0);
    }

    30% {
        transform: translateY(-6px);
    }
}

/* Chat Input Area */
.chat-input-area {
    padding: var(--space-md) var(--space-lg) var(--space-lg);
    background: var(--color-bg);
    border-top: 1px solid var(--color-gray-200);
}

.input-container {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: var(--color-gray-100);
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.input-container:focus-within {
    background: var(--color-bg);
    border-color: var(--color-primary);
}

#message-input {
    flex: 1;
    padding: 12px var(--space-md);
    background: transparent;
    border: none;
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    resize: none;
    max-height: 150px;
    min-height: 44px;
    line-height: 1.4;
    overflow-y: auto;
}

#message-input:focus {
    outline: none;
}

#message-input::placeholder {
    color: var(--color-gray-600);
    opacity: 1;
}

.btn-send {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn-send:hover:not(:disabled) {
    background: var(--color-primary-hover);
    transform: scale(1.05);
}

.btn-send:disabled {
    background: var(--color-gray-300);
    cursor: not-allowed;
}

.input-hint {
    margin-top: var(--space-sm);
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
}

/* ===================================
   MODAL
   =================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal-content {
    position: relative;
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 90%;
    max-height: 90vh;
    overflow: hidden;
    animation: modalIn 0.3s ease-out;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.calendar-modal-content {
    width: 100%;
    max-width: 700px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-gray-200);
}

.modal-header h2 {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.modal-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-gray-500);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.modal-close:hover {
    background: var(--color-gray-100);
    color: var(--color-text);
}

.modal-body {
    padding: var(--space-lg);
}

.calendar-intro {
    text-align: center;
    color: var(--color-gray-600);
    margin-bottom: var(--space-lg);
}

.calendar-container {
    min-height: 500px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.calendar-container iframe {
    width: 100%;
    min-height: 500px;
    border: none;
}

/* ===================================
   RESPONSIVE
   =================================== */

@media (max-width: 768px) {
    .register-container {
        max-width: 100%;
        border-radius: var(--radius-lg);
    }

    .register-content h1 {
        font-size: var(--font-size-xl);
    }

    .chat-container {
        max-width: 100%;
    }

    .chat-header {
        padding: var(--space-md);
    }

    .btn-schedule span {
        display: none;
    }

    .btn-schedule {
        padding: var(--space-sm);
    }

    .chat-messages {
        padding: var(--space-md);
    }

    .message {
        max-width: 95%;
    }

    .input-hint {
        display: none;
    }

    .modal-content {
        max-width: 95%;
        max-height: 85vh;
    }
}

@media (max-width: 480px) {
    #register-screen {
        padding: var(--space-md);
    }

    .register-content {
        padding: var(--space-lg);
    }

    .benefit-item {
        padding: var(--space-sm);
    }
}

/* ===================================
   UTILITIES
   =================================== */

.hidden {
    display: none !important;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--color-gray-300);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-400);
}

/* ===================================
   INLINE CALENDAR IN CHAT
   =================================== */

.calendar-message {
    max-width: 95% !important;
    width: 95%;
}

.calendar-inline {
    background: var(--color-bg) !important;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-md) !important;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.4s ease-out;
}

.calendar-intro-text {
    margin-bottom: var(--space-md);
    font-size: var(--font-size-base);
    color: var(--color-text);
}

.calendar-embed {
    border-radius: var(--radius-md);
    overflow: auto;
    min-height: 700px;
    max-height: 800px;
    background: var(--color-gray-50);
}

.calendar-embed iframe {
    width: 100% !important;
    min-height: 700px;
    height: 100%;
    border: none !important;
}

/* GHL Form embebido en registro */
.ghl-form-container {
    width: 100%;
    max-width: 500px;
    margin: var(--space-sm) auto 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-bg);
}

.ghl-form-container iframe {
    width: 100%;
    min-height: 440px;
    border: none;
    border-radius: var(--radius-lg);
}