/* ===== CSS VARIABLES ===== */
:root {
    --primary-orange: #FF6B35;
    --primary-orange-hover: #ff5722;
    --dark-charcoal: #0A0A0A;
    --white: #FFFFFF;
    --light-gray: #F7F7F8;
    --border-gray: #E5E5E5;
    --text-gray: #666666;
    --message-gray: #333333;
    --font-stack: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-stack);
    background: var(--white);
    color: var(--dark-charcoal);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-gray);
    z-index: 1000;
    padding: 16px 0;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 16px;
    font-family: var(--font-stack);
}

.header-logo .brand-name {
    font-size: 18px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    display: flex;
    gap: 6px;
}

.header-logo .brand-inno {
    font-weight: 800;
    color: var(--primary-orange);
}

.header-logo .brand-solutions {
    font-weight: 300;
    color: var(--dark-charcoal);
}

.header-logo .separator {
    width: 1px;
    height: 24px;
    background-color: #CCCCCC;
}

.header-logo .tagline {
    font-size: 14px;
    font-weight: 300;
    color: #666666;
}

.header-buttons {
    display: flex;
    align-items: center;
    gap: 12px;
}

.ghost-btn {
    background: transparent;
    color: var(--dark-charcoal);
    padding: 10px 24px;
    border-radius: 24px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    border: 1.5px solid var(--dark-charcoal);
    cursor: pointer;
}

.ghost-btn:hover {
    background: var(--dark-charcoal);
    color: var(--white);
    transform: translateY(-2px);
}

.contact-btn {
    background: var(--primary-orange);
    color: var(--white);
    padding: 10px 24px;
    border-radius: 24px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.contact-btn:hover {
    background: var(--primary-orange-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

/* ===== HERO SECTION ===== */
.hero {
    margin-top: 70px;
    padding: 80px 20px 60px;
    text-align: center;
    background: linear-gradient(135deg, #F7F7F7 0%, #f7f7f8 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 350px;
    height: 350px;
    background-image: url('inno_new.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    z-index: 0;
}

.hero-logo-mobile {
    display: none;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    color: var(--dark-charcoal);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero h1 .highlight {
    color: var(--primary-orange);
}

.hero p {
    font-size: 20px;
    color: var(--text-gray);
    margin-bottom: 30px;
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.badge {
    background: var(--white);
    padding: 12px 24px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 14px;
    color: var(--dark-charcoal);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

/* ===== CHATBOT SECTION ===== */
.chatbot-section {
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px 60px;
}

.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--dark-charcoal);
    margin-bottom: 12px;
}

.section-subtitle {
    text-align: center;
    font-size: 16px;
    color: var(--text-gray);
    margin-bottom: 30px;
}

.chatbot-container {
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    height: 600px;
    display: flex;
    flex-direction: column;
}

.chat-header {
    background: var(--primary-orange);
    color: var(--white);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.chat-header-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
}

.chat-header-info h3 {
    font-size: 16px;
    font-weight: 600;
}

.chat-header-info p {
    font-size: 13px;
    opacity: 0.9;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    background: var(--light-gray);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.message {
    display: flex;
    gap: 12px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    justify-content: flex-end;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    flex-shrink: 0;
}

.message.ai .message-avatar {
    background: linear-gradient(135deg, var(--primary-orange), #ff8c61);
    color: var(--white);
}

.message.user .message-avatar {
    background: var(--dark-charcoal);
    color: var(--white);
}

.message-content {
    max-width: 70%;
    background: var(--white);
    padding: 14px 18px;
    border-radius: 16px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
    font-size: 15px;
    line-height: 1.5;
}

.message.user .message-content {
    background: var(--dark-charcoal);
    color: var(--white);
}

.typing-indicator {
    display: none;
    gap: 4px;
    padding: 14px 18px;
    background: var(--white);
    border-radius: 16px;
    width: fit-content;
}

.typing-indicator.active {
    display: flex;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-gray);
    animation: typing 1.4s infinite;
}

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

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

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.7;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

.example-prompts {
    padding: 16px 24px;
    background: var(--white);
    border-top: 1px solid var(--border-gray);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.prompt-chip {
    background: var(--light-gray);
    border: 1px solid var(--border-gray);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--dark-charcoal);
}

.prompt-chip:hover {
    background: var(--primary-orange);
    color: var(--white);
    border-color: var(--primary-orange);
}

.chat-input-container {
    padding: 20px;
    background: var(--white);
    border-top: 1px solid var(--border-gray);
}

.chat-input-wrapper {
    display: flex;
    gap: 12px;
    align-items: center;
}

.chat-input {
    flex: 1;
    padding: 14px 18px;
    border: 2px solid var(--border-gray);
    border-radius: 24px;
    font-size: 15px;
    font-family: var(--font-stack);
    outline: none;
    transition: all 0.2s ease;
    background: var(--white);
    color: var(--dark-charcoal);
}

.chat-input:focus {
    border-color: var(--primary-orange);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.chat-input::placeholder {
    color: var(--text-gray);
}

.send-button {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary-orange);
    border: none;
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

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

.send-button:active:not(:disabled) {
    transform: scale(0.95);
}

.send-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.chat-disclaimer {
    text-align: center;
    font-size: 11px;
    color: var(--text-gray);
    padding: 12px 20px 0;
    opacity: 0.8;
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
    background: var(--light-gray);
    padding: 80px 20px;
}

.how-it-works-content {
    max-width: 1000px;
    margin: 0 auto;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-orange);
    color: var(--white);
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--dark-charcoal);
}

.step p {
    font-size: 15px;
    color: var(--text-gray);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark-charcoal);
    color: var(--white);
    padding: 24px 20px;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-contact {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 20px;
    font-weight: 400;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-contact-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-contact-item .icon {
    font-size: 16px;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-contact a:hover {
    color: var(--white);
}

.footer-logo {
    font-size: 16px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.footer p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--primary-orange);
}

.copyright {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 20px;
}

/* ===== SCROLLBAR ===== */
.chat-messages::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
    background: var(--light-gray);
}

.chat-messages::-webkit-scrollbar-thumb {
    background: #d1d1d1;
    border-radius: 4px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: #b1b1b1;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .hero::before {
        display: none;
    }

    .hero-content {
        padding-top: 0;
    }

    .hero-logo-mobile {
        display: block;
        width: 200px;
        height: auto;
        margin: 0 auto 30px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero p {
        font-size: 18px;
    }

    .section-title {
        font-size: 28px;
    }

    .chatbot-container {
        height: 500px;
    }

    .message-content {
        max-width: 85%;
    }

    .steps {
        grid-template-columns: 1fr;
    }

    .example-prompts {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }

    .hero-badges {
        flex-direction: column;
        align-items: center;
    }

    .chat-input {
        font-size: 14px;
    }
}