.btn-gradient {
    background: var(--primary-gradient);
    border: none;
    color: white;
    padding: 10px 20px;
    border-radius: 10px;
    transition: 0.3s ease;
}

    .btn-gradient:hover {
        transform: translateY(-2px);
        box-shadow: 0 5px 20px rgba(255, 78, 205, 0.4);
    }

/* LINKEDIN BUTTON */
.btn-linkedin {
    border: 1px solid #0A66C2;
    color: #0A66C2;
    padding: 10px 20px;
    border-radius: 10px;
    transition: 0.3s;
}

    .btn-linkedin:hover {
        background: #0A66C2;
        color: white;
        box-shadow: 0 0 15px rgba(10, 102, 194, 0.4);
    }


/* WHATSAPP BUTTON (refined) */
.btn-whatsapp {
    border: 1px solid #25D366;
    color: #25D366;
    padding: 10px 20px;
    border-radius: 10px;
    transition: 0.3s;
}

    .btn-whatsapp:hover {
        background: #25D366;
        color: white;
        box-shadow: 0 0 15px rgba(37, 211, 102, 0.4);
    }

@media (max-width: 760px) {

    .mt-4 a {
        flex: 1 1 30%;
        text-align: center;
        margin: 0 !important;
        /* 🔥 Make buttons smaller */
        padding: 6px 10px;
        font-size: 12px;
        border-radius: 8px;
    }

        /* Resume button full width */
        .mt-4 a:first-child {
            flex: 1 1 100%;
            font-size: 13px;
            padding: 8px;
        }

    .about-title{
        text-align:center;
    }
}

.card-custom {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 20px;
    backdrop-filter: blur(10px);
    transition: 0.3s ease;
    border: 1px solid rgba(255,255,255,0.1);
}

    .card-custom:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 30px rgba(123, 97, 255, 0.3);
    }


.section-title {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 30px;
}

    .section-title span {
        background: var(--primary-gradient);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }




/* NAVBAR BASE */
.custom-navbar {
    background: transparent;
    padding: 15px 0;
    transition: 0.3s ease;
}

/* NAV LINKS */
.navbar .nav-link {
    color: white;
    margin-left: 15px;
    transition: 0.3s;
}

    .navbar .nav-link:hover {
        color: #ff4ecd;
    }

/* SCROLL EFFECT */
.navbar.scrolled {
    background: rgba(15, 15, 26, 0.8);
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
}



/* FOOTER BASE */
.footer {
    padding: 30px 0;
    background: linear-gradient(180deg, #0f0f1a, #141427);
    border-top: 1px solid rgba(255,255,255,0.05);
    position: relative;
}

    /* GLOW EFFECT 🔥 */
    .footer::before {
        content: "";
        position: absolute;
        width: 300px;
        height: 300px;
        background: linear-gradient(135deg, #ff4ecd, #7b61ff);
        filter: blur(120px);
        bottom: 0px;
        right: 0px;
        opacity: 0.3;
    }

/* LINKS */
.footer-links a,
.footer-social a {
    margin: 0 10px;
    color: #bbb;
    text-decoration: none;
    font-size: 0.95rem;
    transition: 0.3s ease;
    position: relative;
}

    /* HOVER EFFECT 🔥 */
    .footer-links a:hover,
    .footer-social a:hover {
        color: #fff;
    }

    /* UNDERLINE ANIMATION */
    .footer-links a::after,
    .footer-social a::after {
        content: "";
        position: absolute;
        width: 0%;
        height: 2px;
        background: linear-gradient(135deg, #ff4ecd, #7b61ff);
        bottom: -3px;
        left: 0;
        transition: 0.3s;
    }

    .footer-links a:hover::after,
    .footer-social a:hover::after {
        width: 100%;
    }


/*=========== ARCHITECTURE DIAGRAM (THEMED) ===========*/

/* NODE BOX */
.arch-node {
    background: var(--card-bg);
    padding: 12px 20px;
    border-radius: 10px;
    cursor: pointer;
    transition: 0.3s ease;
    border: 1px solid var(--border-light);
    text-align: center;
}

    /* HOVER EFFECT 🔥 */
    .arch-node:hover {
        transform: translateY(-4px);
        background: var(--primary-gradient);
        color: white;
        box-shadow: 0 10px 25px rgba(255, 78, 205, 0.3);
    }

/* ARROW */
.arch-arrow {
    font-size: 22px;
    text-align: center;
    margin: 8px 0;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* EXPLANATION TEXT */
#archExplanation {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* MOBILE INFO (if used later) */
.arch-mobile-info {
    display: none;
    background: var(--card-bg);
    padding: 12px;
    border-radius: 10px;
    margin-top: 10px;
    color: var(--text-muted);
    border: 1px solid var(--border-light);
}


/* TECH CARD */
.tech-card {
    transition: 0.3s ease;
}

    .tech-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 30px rgba(123, 97, 255, 0.3);
    }

/* TECH TAGS */
.tech-list span {
    display: inline-block;
    margin: 6px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);
    transition: 0.3s;
}

    .tech-list span:hover {
        background: var(--primary-gradient);
        color: white;
    }



    /* ================= ROOT CHAT WIDGET ================= */

.ai-widget {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 9999;
    font-family: 'Segoe UI', sans-serif;
}

/* ================= CHAT BUTTON ================= */

.ai-open-btn {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    font-size: 24px;
    color: white;
    background: var(--primary-gradient);
    box-shadow: 0 0 20px #3b82f6;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: aiPulse 2s infinite;
}

@keyframes aiPulse {
    0% {
        transform: scale(1)
    }

    50% {
        transform: scale(1.1)
    }

    100% {
        transform: scale(1)
    }
}

/* ================= CHAT WINDOW ================= */

.ai-chat-window {
    width: 340px;
    height: 470px;
    background: rgba(255, 255, 255, 0.05); /* transparent glass */
    backdrop-filter: blur(15px); /* main glass effect 🔥 */
    -webkit-backdrop-filter: blur(15px);
    border-radius: 14px;
    overflow: hidden;
    display: none;
    flex-direction: column;
    box-shadow: 0 0 40px rgba(0,0,0,0.6);
    margin-bottom: 60px;
    border: 1px solid rgba(255,255,255,0.1); /* glass border */
}


/* ================= HEADER ================= */

.ai-chat-header {
    background: var(--primary-gradient);
    color: white;
    padding: 12px;
    font-weight: 600;
    text-align: center;
    font-size: 14px;
}

/* ================= MESSAGE AREA ================= */

.ai-chat-messages {
    flex: 1;
    padding: 14px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}



/* ================= SUGGESTED QUESTIONS ================= */

.ai-quick-questions {
    padding: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

    .ai-quick-questions button {
        background: rgba(255,255,255,0.08);
        border: none;
        color: var(--text-light);
        padding: 6px 10px;
        font-size: 11px;
        border-radius: 14px;
        cursor: pointer;
    }

        .ai-quick-questions button:hover {
            background: var(--primary-gradient);
        }

/* ================= INPUT AREA ================= */

.ai-input-zone {
    display: flex;
    align-items: center;
    padding: 10px;
    gap: 8px;
}

.ai-input-box {
    flex: 1;
    padding: 10px 14px;
    border-radius: 20px;
    border: none;
    background: var(--card-bg);
    color: var(--text-light);
}

.ai-send-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--primary-gradient);
    color: white;
    font-size: 18px;
    cursor: pointer;
}

.ai-input-box:focus {
    outline: none;
    box-shadow: 0 0 0 2px #ff4ecd;
}

/* ================= SCROLLBAR ================= */

.ai-chat-messages::-webkit-scrollbar {
    width: 4px;
}

.ai-chat-messages::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 10px;
}

.ai-thinking span {
    animation: blink 1s infinite;
}

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

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

@keyframes blink {
    0% {
        opacity: 0
    }

    50% {
        opacity: 1
    }

    100% {
        opacity: 0
    }
}


.ai-message {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin: 10px 0;
}

    .ai-message.user {
        justify-content: flex-end;
        flex-direction: row-reverse;
    }

    .ai-message.bot {
        justify-content: flex-start;
    }

.ai-avatar {
    flex-shrink: 0;
}

    .ai-avatar img {
        width: 32px;
        height: 32px;
        border-radius: 50%;
    }

.ai-bubble {
    max-width: 75%;
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 13px;
}

.ai-message.bot .ai-bubble {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(10px);
    color: var(--text-light);
}

.ai-message.user .ai-bubble {
    background: var(--primary-gradient);
    color: white;
}

@media (max-width: 480px) {

    .ai-widget {
        right: 0;
        left: 0;
        bottom: 20px;
        display: flex;
        justify-content: center;
    }

    .ai-chat-window {
        width: calc(100% - 30px);
        margin-bottom: 70px;
        height: 65vh;
    }
}