:root {
    --primary: #0056b3;
    --secondary: #10b981;
    --dark: #0f172a;
    --light: #f8fafc;
    --accent: #eaf3ff;
    --transition-speed: 0.8s;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: #f1f5f9;
    color: var(--dark);
    overflow-x: hidden;
    overflow-y: auto;
    min-height: 100vh;
}

/* Hindi Specific Adjustments */
body.lang-hi {
    font-family: 'Hind', sans-serif;
}

body.lang-hi h1, 
body.lang-hi h2, 
body.lang-hi h3, 
body.lang-hi p, 
body.lang-hi span {
    line-height: 1.4 !important;
    letter-spacing: 0 !important;
}

#presentation-container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    position: relative;
    background: #fff;
    box-shadow: 0 50px 100px rgba(0,0,0,0.1);
    overflow: hidden;
}

.slide {
    position: relative;
    width: 100%;
    height: 720px;
    opacity: 1;
    visibility: visible;
    border-bottom: 1px solid #f1f5f9;
}

/* ======================== */
/* Base Animations          */
/* ======================== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(0, 86, 179, 0.4); }
    70% { transform: scale(1.05); box-shadow: 0 0 0 15px rgba(0, 86, 179, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(0, 86, 179, 0); }
}

.active .animate-up { animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards; opacity: 0; }
.active .animate-right { animation: fadeInRight 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards; opacity: 0; }
.active .animate-left { animation: fadeInLeft 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards; opacity: 0; }
.active .animate-scale { animation: scaleIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards; opacity: 0; }
.active .float { animation: float 3s ease-in-out infinite; }

/* Staggered Delays */
.delay-1 { animation-delay: 0.2s !important; }
.delay-2 { animation-delay: 0.4s !important; }
.delay-3 { animation-delay: 0.6s !important; }
.delay-4 { animation-delay: 0.8s !important; }
.delay-5 { animation-delay: 1s !important; }
.delay-6 { animation-delay: 1.2s !important; }

/* Navigation UI */
.nav-controls, .progress-bar-container {
    display: none;
}

/* Language Toggle */
.lang-toggle {
    position: fixed;
    top: 30px;
    right: 30px;
    z-index: 101;
    display: flex;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    padding: 5px;
}

.lang-btn {
    padding: 8px 15px;
    border: none;
    background: transparent;
    color: white;
    cursor: pointer;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.lang-btn.active {
    background: var(--primary);
    box-shadow: 0 4px 10px rgba(0, 86, 179, 0.3);
}

/* Polished Card Styles */
.glass-card {
    background: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3) !important;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover, .hover-lift:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15) !important;
}

.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Badge Styles */
.badge {
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.badge-green { background: var(--secondary); color: white; }
.badge-blue { background: var(--primary); color: white; }
.badge-dark { background: var(--dark); color: white; }

/* Refined Shapes */
[data-object-type="shape"] {
    opacity: 0.9;
}

/* ====================================================== */
/* LANGUAGE POPUP                                         */
/* ====================================================== */
#lang-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#lang-popup-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

#lang-popup {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 32px;
    padding: 50px 60px;
    text-align: center;
    box-shadow: 0 50px 120px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255,255,255,0.1);
    animation: popupEnter 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    max-width: 480px;
    width: 90%;
}

@keyframes popupEnter {
    from {
        opacity: 0;
        transform: scale(0.85) translateY(30px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.lang-popup-logo {
    margin-bottom: 25px;
}
.lang-popup-logo img {
    height: 70px;
    filter: drop-shadow(0 8px 20px rgba(0, 86, 179, 0.2));
}

.lang-popup-title {
    font-size: 28px;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 8px;
    font-family: 'Inter', sans-serif;
}
.lang-popup-title span {
    color: #0056b3;
}

.lang-popup-subtitle {
    font-size: 16px;
    color: #64748b;
    margin-bottom: 35px;
    line-height: 1.6;
    font-family: 'Inter', 'Hind', sans-serif;
}

.lang-popup-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.lang-popup-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 30px 40px;
    border: 2px solid #e2e8f0;
    border-radius: 20px;
    background: white;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    min-width: 160px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.04);
}

.lang-popup-btn:hover {
    border-color: #0056b3;
    transform: translateY(-6px) scale(1.03);
    box-shadow: 0 20px 40px rgba(0, 86, 179, 0.15);
    background: linear-gradient(135deg, #f0f7ff, #ffffff);
}

.lang-popup-flag {
    font-size: 42px;
    line-height: 1;
}

.lang-popup-label {
    font-size: 18px;
    font-weight: 700;
    color: #0f172a;
    font-family: 'Inter', 'Hind', sans-serif;
}

/* Page hidden until language selected */
body.page-hidden #presentation-container,
body.page-hidden .lang-toggle,
body.page-hidden .nav-controls,
body.page-hidden .progress-bar-container {
    opacity: 0;
    transition: opacity 0.5s ease;
}

body:not(.page-hidden) #presentation-container,
body:not(.page-hidden) .lang-toggle {
    opacity: 1;
    transition: opacity 0.5s ease 0.3s;
}

@media (max-width: 480px) {
    #lang-popup {
        padding: 35px 25px;
        border-radius: 24px;
    }
    .lang-popup-buttons {
        gap: 12px;
    }
    .lang-popup-btn {
        padding: 22px 25px;
        min-width: 130px;
    }
    .lang-popup-flag {
        font-size: 36px;
    }
    .lang-popup-title {
        font-size: 22px;
    }
    .lang-popup-subtitle {
        font-size: 14px;
    }
}


/* ====================================================== */
/* RESPONSIVE: DESKTOP (>1280px) — use scale for large    */
/* ====================================================== */
@media (min-width: 1281px) {
    .slide .slide-container {
        /* Keep original fixed layout */
    }
}

/* ====================================================== */
/* RESPONSIVE: TABLET & SMALL DESKTOP (768px - 1280px)    */
/* ====================================================== */
@media (max-width: 1280px) {
    #presentation-container {
        max-width: 100%;
        box-shadow: none;
    }

    .slide {
        height: auto !important;
        min-height: unset;
    }

    .slide .slide-container {
        position: relative !important;
        width: 100% !important;
        height: auto !important;
        min-height: unset !important;
        padding: 60px 40px !important;
        overflow: visible !important;
    }

    /* -- Slide 0: Hero -- */
    #slide-0 .slide-container {
        display: flex !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 30px !important;
    }
    #slide-0 .slide-container > * {
        position: relative !important;
        left: auto !important;
        top: auto !important;
        right: auto !important;
        width: 100% !important;
        z-index: 5 !important;
    }
    #slide-0 [data-object-type="shape"] {
        display: none !important;
    }
    #slide-0 .slide-container > div:nth-child(2) {
        display: flex !important;
        align-items: center !important;
        gap: 15px !important;
    }
    #slide-0 .slide-container > div:nth-child(3) p span {
        font-size: clamp(28px, 5vw, 48px) !important;
    }
    #slide-0 .slide-container > div:nth-child(3) p span:nth-child(2) {
        font-size: clamp(42px, 8vw, 88px) !important;
    }
    /* Gradient pill */
    #slide-0 .slide-container > div:nth-child(4) {
        height: auto !important;
        padding: 15px 20px !important;
        border-radius: 30px !important;
    }
    /* Hero images row */
    #slide-0 .slide-container > div:nth-child(7),
    #slide-0 .slide-container > div:nth-child(8) {
        display: block !important;
        max-width: 100% !important;
    }
    #slide-0 .slide-container > div:nth-child(7) img,
    #slide-0 .slide-container > div:nth-child(8) img {
        width: 100% !important;
        height: auto !important;
    }
    #slide-0 .slide-container > div:nth-child(8) {
        max-width: 50% !important;
    }

    /* -- Slide 1: Core Features -- */
    #slide-1 .slide-container {
        padding: 40px 30px !important;
    }
    #slide-1 .slide-container > div:first-child {
        position: relative !important;
        left: auto !important;
        top: auto !important;
        width: 100% !important;
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
        margin-bottom: 25px !important;
    }
    #slide-1 .slide-container > div:nth-child(2) {
        position: relative !important;
        left: auto !important;
        top: auto !important;
        display: grid !important;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)) !important;
        gap: 20px !important;
        width: 100% !important;
    }

    /* -- Industry Solutions -- */
    #slide-solutions .slide-container {
        padding: 50px 30px !important;
        min-height: unset !important;
    }
    #slide-solutions .slide-container > div:nth-child(2) {
        display: grid !important;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)) !important;
        gap: 20px !important;
    }
    #slide-solutions {
        height: auto !important;
        min-height: unset !important;
    }

    /* -- Slide 2: All-In-One -- */
    #slide-2 .slide-container {
        display: flex !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 25px !important;
    }
    #slide-2 .slide-container > * {
        position: relative !important;
        left: auto !important;
        right: auto !important;
        top: auto !important;
    }
    #slide-2 .slide-container > div:first-child {
        position: absolute !important;
        left: 0 !important;
        top: 0 !important;
        width: 100% !important;
        height: 100% !important;
    }
    #slide-2 .slide-container > div:nth-child(2) {
        display: flex !important;
        align-items: center !important;
        gap: 15px !important;
    }
    #slide-2 h1 span {
        font-size: clamp(32px, 6vw, 72px) !important;
    }
    #slide-2 .slide-container > div:last-child {
        width: 100% !important;
    }
    #slide-2 .slide-container > div:last-child img {
        width: 100% !important;
        max-width: 500px !important;
    }
    #slide-2 .glass-card {
        position: relative !important;
        bottom: auto !important;
        right: auto !important;
        margin-top: 15px !important;
    }

    /* -- Slide 3: Benefits -- */
    #slide-3 .slide-container {
        padding: 50px 30px !important;
    }
    #slide-3 .slide-container > div:first-child {
        position: relative !important;
        left: auto !important;
        top: auto !important;
        width: 100% !important;
        height: auto !important;
        border-radius: 0 !important;
    }
    #slide-3 .slide-container > div:nth-child(2) {
        position: relative !important;
        left: auto !important;
        top: auto !important;
        width: 100% !important;
        text-align: center !important;
        margin-bottom: 30px !important;
    }
    #slide-3 .slide-container > div:nth-child(2) h2 {
        font-size: clamp(28px, 5vw, 56px) !important;
    }
    #slide-3 .slide-container > div:nth-child(3) {
        position: relative !important;
        left: auto !important;
        top: auto !important;
        display: grid !important;
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)) !important;
        gap: 20px !important;
        width: 100% !important;
    }

    /* -- Slide 4: CTA -- */
    #slide-4 .slide-container {
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        gap: 30px !important;
        text-align: center !important;
    }
    #slide-4 .slide-container > * {
        position: relative !important;
        left: auto !important;
        top: auto !important;
        right: auto !important;
    }
    #slide-4 .slide-container > div:first-child {
        position: absolute !important;
        left: 0 !important;
        top: 0 !important;
        width: 100% !important;
        height: 250px !important;
    }
    #slide-4 .slide-container > div:nth-child(2) {
        z-index: 10 !important;
        width: 100% !important;
    }
    #slide-4 .slide-container > div:nth-child(2) h2 {
        font-size: clamp(32px, 6vw, 72px) !important;
    }
    #slide-4 a.hover-lift:first-of-type {
        width: 100% !important;
        max-width: 680px !important;
        height: auto !important;
        padding: 25px 30px !important;
        border-radius: 20px !important;
        flex-direction: row !important;
        gap: 20px !important;
    }
    #slide-4 a.hover-lift:first-of-type i {
        font-size: 48px !important;
    }
    #slide-4 a.hover-lift:first-of-type p:first-child {
        font-size: clamp(28px, 5vw, 64px) !important;
    }
    #slide-4 a.hover-lift:last-of-type {
        width: auto !important;
        max-width: 460px !important;
        padding: 15px 40px !important;
        height: auto !important;
    }
}


/* ====================================================== */
/* RESPONSIVE: MOBILE (<768px)                            */
/* ====================================================== */
@media (max-width: 768px) {

    /* Language toggle smaller */
    .lang-toggle {
        top: 10px;
        right: 10px;
        background: rgba(0, 0, 0, 0.5);
        border: 1px solid rgba(255,255,255,0.3);
    }
    .lang-btn {
        padding: 6px 12px;
        font-size: 12px;
    }

    .slide .slide-container {
        padding: 40px 20px !important;
    }

    /* -- Slide 0: Hero -- */
    #slide-0 .slide-container > div:nth-child(3) p span {
        font-size: clamp(22px, 6vw, 36px) !important;
    }
    #slide-0 .slide-container > div:nth-child(3) p span:nth-child(2) {
        font-size: clamp(36px, 10vw, 68px) !important;
    }
    #slide-0 .slide-container > div:nth-child(4) {
        flex-direction: column !important;
        gap: 5px !important;
    }
    #slide-0 .slide-container > div:nth-child(4) p {
        font-size: 14px !important;
        text-align: center !important;
    }
    /* Checkmarks */
    #slide-0 .slide-container > div:nth-child(5),
    #slide-0 .slide-container > div:nth-child(6) {
        width: 100% !important;
    }
    #slide-0 .slide-container > div:nth-child(5) p,
    #slide-0 .slide-container > div:nth-child(6) p {
        font-size: 15px !important;
    }
    /* Hide second hero image on very small screens */
    #slide-0 .slide-container > div:nth-child(8) {
        display: none !important;
    }

    /* -- Slide 1: Core Features -- */
    #slide-1 .slide-container > div:first-child {
        flex-direction: column !important;
        gap: 15px !important;
        align-items: flex-start !important;
    }
    #slide-1 .slide-container > div:nth-child(2) {
        grid-template-columns: 1fr !important;
    }

    /* -- Industry Solutions -- */
    #slide-solutions .slide-container > div:first-child h2 {
        font-size: clamp(24px, 6vw, 52px) !important;
    }
    #slide-solutions .slide-container > div:nth-child(2) {
        grid-template-columns: 1fr !important;
    }
    /* General store full-width card */
    #slide-solutions .glass-card[style*="grid-column: span 2"] {
        grid-column: span 1 !important;
    }
    #slide-solutions .glass-card[style*="grid-column: span 2"] > div:last-child {
        grid-template-columns: 1fr !important;
    }

    /* -- Slide 2: All-In-One -- */
    #slide-2 h1 span {
        font-size: clamp(26px, 7vw, 48px) !important;
    }
    #slide-2 .slide-container > div:nth-child(3) > div:nth-child(3) p {
        font-size: 18px !important;
    }
    #slide-2 .slide-container > div:nth-child(3) > div:last-child p {
        font-weight: 700 !important;
        letter-spacing: 0 !important;
    }

    /* -- Slide 3: Benefits -- */
    #slide-3 .slide-container > div:nth-child(3) {
        grid-template-columns: 1fr 1fr !important;
        gap: 12px !important;
    }
    #slide-3 .glass-card {
        padding: 25px 15px !important;
    }
    #slide-3 .glass-card h3 {
        font-size: 17px !important;
    }
    #slide-3 .glass-card p {
        font-size: 13px !important;
    }
    #slide-3 .glass-card > div:first-child {
        width: 50px !important;
        height: 50px !important;
    }
    #slide-3 .glass-card > div:first-child i {
        font-size: 22px !important;
    }

    /* -- Slide 4: CTA -- */
    #slide-4 a.hover-lift:first-of-type {
        flex-direction: column !important;
        padding: 20px !important;
        gap: 15px !important;
    }
    #slide-4 a.hover-lift:first-of-type > div p:first-child {
        font-size: clamp(24px, 7vw, 48px) !important;
    }
    #slide-4 a.hover-lift:first-of-type > div p:last-child {
        font-size: 14px !important;
    }
    #slide-4 a.hover-lift:last-of-type {
        width: 100% !important;
        max-width: 100% !important;
    }
    #slide-4 a.hover-lift:last-of-type p {
        font-size: 16px !important;
    }

    /* Disable hover effects on touch */
    .glass-card:hover, .hover-lift:hover {
        transform: none;
        box-shadow: none !important;
    }
}

/* ====================================================== */
/* RESPONSIVE: VERY SMALL MOBILE (<480px)                 */
/* ====================================================== */
@media (max-width: 480px) {

    .slide .slide-container {
        padding: 30px 15px !important;
    }

    #slide-0 .slide-container > div:nth-child(3) p span:nth-child(2) {
        font-size: clamp(32px, 12vw, 56px) !important;
    }

    #slide-2 h1 span {
        font-size: clamp(22px, 8vw, 42px) !important;
    }

    #slide-3 .slide-container > div:nth-child(3) {
        grid-template-columns: 1fr !important;
    }

    .badge {
        padding: 8px 14px;
        font-size: 11px;
    }

    #slide-solutions .glass-card {
        padding: 20px !important;
    }
    #slide-solutions .glass-card ul {
        font-size: 15px !important;
    }
    #slide-solutions .glass-card h3 {
        font-size: 22px !important;
    }
}