/* -------------------------------------- */
        /* --- Χρώματα και Βασικές Μεταβλητές --- */
        /* -------------------------------------- */
        :root {
            --color-blue: #00BFFF;
            /* Deep Sky Blue */
            --color-gold: #FFD700;
            /* Gold */
            --color-brown: #4B3621;
            /* Dark Coffee Brown */
            --color-gradient-start: #FF7F50;
            /* Coral */
            --color-gradient-end: #FFA500;
            /* Orange */
            --color-dark-text: #4B3621;
            /* Σκούρο κείμενο για ευκρίνεια */
            --shadow-light: 0 1px 3px rgba(255, 255, 255, 0.8);
            --shadow-dark: 0 2px 4px rgba(0, 0, 0, 0.7);
        }

        /* --------------------------- */
        /* --- Γενικές Στυλ --- */
        /* --------------------------- */
        html {
            height: 100%;
            min-height: 100vh;
        }

        body {
            font-family: 'Poppins', sans-serif;
            margin: 0;
            padding: 0;
            color: #333;
            background: linear-gradient(135deg, var(--color-gradient-start) 0%, var(--color-gradient-end) 100%);
            background-attachment: fixed;
            box-sizing: border-box;
        }

        a {
            text-decoration: none;
            color: var(--color-blue);
            transition: color 0.3s, opacity 0.3s;
        }

        a:hover {
            color: var(--color-gold);
        }

        /* --- Σκιές Κειμένου (Για κείμενο που βρίσκεται πάνω στο gradient φόντο) --- */
        h2,
        .phone-number,
        header h1,
        footer p,
        .main-message p,
        .main-title,
        .exam-text p {
            text-shadow: var(--shadow-dark);
        }

        /* --------------------------- */
        /* --- Βοηθητικές Κλάσεις --- */
        /* --------------------------- */
        .text-center {
            text-align: center;
        }

        footer img {
            justify-content: center;
        }

        .m-auto {
            margin: auto;
        }

        .shadow-text-light {
            text-shadow: var(--shadow-light);
        }

        .shadow-text-dark {
            text-shadow: var(--shadow-dark);
        }

        .color-gold {
            color: var(--color-gold) !important;
        }

        .color-blue {
            color: var(--color-blue) !important;
        }

        .font-extrabold {
            font-weight: 800 !important;
        }

        .p-20 {
            padding: 20px;
        }

        /* --------------------------- */
        /* --- Glass Card Style --- */
        /* --------------------------- */
        .glass-card {
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-radius: 20px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
            padding: 30px;
            margin: 20px auto;
            color: white;
            text-shadow: none;
            background: rgba(255, 255, 255, 0.1);
            max-width: 1200px;
            transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
        }

        .glass-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.6);
            cursor: default;
        }

        /* Εξασφαλίζει ότι όλα τα στοιχεία μέσα στο glass-card κληρονομούν το λευκό χρώμα */
        .glass-card p,
        .glass-card h1,
        .glass-card h2,
        .glass-card h3,
        .glass-card h4,
        .glass-card h5,
        .glass-card h6,
        .glass-card li,
        .glass-card span {
            color: inherit;
            background-color: transparent;
            font-family: inherit;
            font-weight: inherit;
            font-style: inherit;
        }

        .glass-card * {
            color: inherit;
            background-color: transparent;
        }


        .bg-glass-brown {
            background: rgba(75, 54, 33, 0.95);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        /* --------------------------- */
        /* --- Header --- */
        /* --------------------------- */
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 5%;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(5px);
            position: sticky;
            top: 0;
            z-index: 1000;
            text-align: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        header h1 {
            font-weight: 800;
            font-size: 1.8em;
            color: white;
            margin: 0;
        }

        .header-logo {
            height: 80px;
            width: auto;
            border-radius: 5px;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
        }

        .phone-number {
            font-size: 1.2em;
            font-weight: 600;
            color: white;
            padding: 10px 15px;
            border: 2px solid white;
            border-radius: 50px;
            transition: background 0.3s, transform 0.1s, color 0.3s;
            cursor: pointer;
        }


        .phone-number:hover {
            background: rgba(255, 255, 255, 0.2);
            color: var(--color-gold);
        }

        .phone-number:active {
            transform: scale(0.95);
        }

        /* --------------------------- */
        /* --- Promo Section --- */
        /* --------------------------- */
        .promo-section {
            padding: 30px 5%;
            max-width: 1200px;
            margin: 0 auto;
            text-align: left;
        }

.promo-row-1,
.promo-row-2 {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    gap: 15px;
}
        

        .brown-box {
            background-color: var(--color-brown);
            padding: 25px 35px;
            color: white !important;
            font-size: 24px;
            line-height: 1.4;
            width: fit-content;
            max-width: 100%;
            margin: 0;
            border-radius: 10px;
            text-shadow: none;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.35);
            backdrop-filter: blur(5px);
            -webkit-backdrop-filter: blur(5px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
        }

        .yellow {
            color: var(--color-gold) !important;
            font-weight: 600;
        }

        .logo-box img {
            width: 300px;
            border: 4px solid var(--color-blue);
            border-radius: 10px;
            margin-bottom: 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .logo-box img,
        .student-image img {
            border-radius: 0.75rem;
        }

.promo-row-2 .student-image {
    text-align: center;
    /* Προσθήκη display: flex και justify-content: center για σίγουρο κεντράρισμα 
       αν και η αλλαγή στην desktop έκδοση αρκεί, το επαναλαμβάνουμε για σιγουριά */
    display: flex;
    justify-content: center;
    align-items: center;
    flex-grow: 1;
    max-width: 90%;
}

.promo-row-2 .student-image img {
    width: 100%;
    max-width: 250px;
    /* Μικρότερο max-width για κινητά */
    margin: 10px auto;
    display: block;
}
        /* --- Footer Banner (within Promo Section) --- */
        .footer-banner {
            /* Χρήση gradient για visual appeal και καλύτερη αντίθεση */
            background: linear-gradient(90deg, var(--color-gold), var(--color-gradient-end));
            padding: 15px 20px;
            border-radius: 6px;
            width: 90%;
            max-width: 650px;
            margin: 20px auto 0;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.35);
            text-align: center;
            box-align: center;
        }

        .blue-title {
            color: var(--color-blue) !important;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 10px;
            /* Σκιά για το μπλε κείμενο */
            text-shadow: 1px 1px 2px var(--color-dark-text), -1px -1px 2px var(--color-dark-text);
        }

        .yellow-subtitle {
            /* ΕΠΙΔΙΟΡΘΩΣΗ: Χρησιμοποιούμε το σκούρο χρώμα (dark-text) για μέγιστη ευκρίνεια */
            color: var(--color-dark-text) !important;
            font-size: 20px;
            font-weight: 600;
            text-shadow: none;
        }

        /* --------------------------- */
        /* --- Video Section --- */
        /* --------------------------- */
        .video-section {
            padding: 40px 5%;
            text-align: center;
        }

        .video-container {
            max-width: 900px;
            margin: auto;
            padding: 40px;
            margin-top: 40px;
        }

        .video-section h2 {
            color: var(--color-blue) !important;
            font-size: 1.8em;
            margin-bottom: 30px;
            line-height: 1.2;
        }

        .video-wrapper {
            position: relative;
            padding-bottom: 56.25%;
            height: 0;
            overflow: hidden;
            margin-bottom: 30px;
            border-radius: 10px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
        }

        .video-wrapper video,
        .video-wrapper iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: none;
        }

        .video-text-content p {
            font-size: 1.2em;
            margin: 10px 0;
            color: white !important;
        }

        .video-text-content .highlight-text {
            font-size: 1.5em;
            font-weight: 800;
            color: var(--color-gold) !important;
        }


        .video-final-message {
            max-width: 350px;
            margin: 30px auto 0;
            padding: 15px 25px;
            background: linear-gradient(90deg, var(--color-gold), var(--color-gradient-end));
            border-radius: 10px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
        }

        .video-final-message p {
            font-size: 1.2em;
            font-weight: 700;
            line-height: 1.4;
            color: var(--color-dark-text) !important;
            margin: 0;
            text-shadow: none;
        }

        /* --------------------------- */
        /* --- Exam Section --- */
        /* --------------------------- */
        .exam-section-title {
            max-width: 420px;
            margin: 0 auto 30px auto;
            background: var(--color-brown);
            padding: 15px 25px;
            border-radius: 10px;
            font-size: 1.8em;
            font-weight: 800;
            color: white !important;
            text-shadow: none;
        }

        /* --- Exam Section (Uniform Boxes) --- */
        .exam-images {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }


        /* Fixed-size boxes for PERFECT equal size (Desktop) */
        .exam-image-wrapper {
            width: 350px;
            height: 260px;
            /* Σταθερό ύψος για desktop */
            background: rgba(0, 0, 0, 0.25);
            backdrop-filter: blur(12px);
            border-radius: 12px;
            padding: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s;
            overflow: hidden;
        }


        .exam-image-wrapper:hover {
            transform: scale(1.02);
        }


        .exam-images img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
            display: block;
        }

        .exam-text {
            padding: 20px 0;
        }

        .exam-text p {
            font-size: 1.25em;
            line-height: 1.6;
            margin: 15px 0;
            color: white;
            background-color: transparent;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.7);
            font-weight: 500 !important;
        }


        .exam-text .highlight-line-1,
        .exam-text .highlight-line-2 {
            font-weight: 700;
            color: var(--color-gold) !important;
            text-shadow: 0 0 5px rgba(255, 215, 0, 0.8);
            background-color: rgba(0, 0, 0, 0.2);
            padding: 5px 10px;
            border-radius: 5px;
            display: block;
            margin: 15px auto;
            max-width: fit-content;
        }

        .exam-text .final-line {
            font-weight: 800;
            color: var(--color-blue) !important;
            font-size: 1.4em;
            text-shadow: 0 0 7px rgba(0, 191, 255, 0.9);
        }


        /* --------------------------- */
        /* --- Why Us Section --- */
        /* --------------------------- */
        .why-us-section {
            text-align: center;
            padding: 50px 5%;
        }

        .why-us-section h2 {
            color: white !important;
            font-size: 2.5em;
            margin-bottom: 40px;
        }

        .cards-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }


        .feature-card {
            flex: 1;
            min-width: 280px;
            max-width: 350px;
            padding: 25px;
            border-radius: 15px;
            background: rgba(75, 54, 33, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.3);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .feature-card:hover {
            background: rgba(0, 191, 255, 0.1);
            transform: translateY(-8px) scale(1.02);
            border: 1px solid var(--color-blue);
            box-shadow: 0 10px 25px rgba(0, 191, 255, 0.4);
        }

        .feature-card h3 {
            font-size: 1.4em;
            color: var(--color-gold) !important;
            background-color: transparent !important;
            margin-bottom: 10px;
            border-bottom: 2px solid var(--color-blue);
            padding-bottom: 5px;
        }

        .feature-card p {
            color: #f0f0f0 !important;
            background-color: transparent !important;
            font-size: 1.1em;
        }


        /* --------------------------- */
        /* --- Content Section (Δεύτερη CTA) --- */
        /* --------------------------- */
        .content-section {
            text-align: center;
            padding: 50px 5%;
        }

        .content-section h2 {
            color: white !important;
            font-size: 2.5em;
            margin-bottom: 40px;
            background: var(--color-blue);
            display: inline-block;
            padding: 10px 20px;
            border-radius: 10px;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.7);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
        }

        .content-list-container {
            max-width: 950px;
            text-align: left;
            color: white !important;
            border-radius: 15px;
            margin: 20px auto;
        }

        .content-list-container ul {
            list-style: none;
            padding: 0;
        }

        .content-list-container li {
            font-size: 1.2em;
            margin-bottom: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            padding-bottom: 10px;
            transition: background-color 0.3s;
            color: white !important;
            background-color: transparent !important;
        }


        .content-list-container li:hover {
            background-color: rgba(0, 191, 255, 0.05);
            border-bottom-color: var(--color-gold);
            cursor: default;
        }



        .content-list-container li:last-child {
            border-bottom: none;
        }

        .secondary-cta {
            margin-top: 40px;
        }

        /* --------------------------- */
        /* --- CTA Button Style --- */
        /* --------------------------- */
        .cta-button {
            display: inline-block;
            background: var(--color-blue);
            color: white;
            font-weight: 600;
            font-size: 1.2em;
            padding: 15px 35px;
            border-radius: 50px;
            box-shadow: 0 6px 15px rgba(0, 191, 255, 0.5);
            margin-top: 20px;
            text-shadow: none;
            transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            position: relative;
            overflow: hidden;
            z-index: 1;
            cursor: pointer;
        }

        .cta-button:hover {
            background: #008DCC;
            transform: translateY(-4px);
            box-shadow: 0 10px 20px rgba(0, 191, 255, 0.7);
        }


        .cta-button::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 5px;
            height: 5px;
            background: rgba(255, 255, 255, 0.5);
            opacity: 0;
            border-radius: 100%;
            transform: scale(1, 1) translate(-50%);
            transition: all 0.6s;
            z-index: -1;
        }

        .cta-button:hover::after {
            opacity: 1;
            transform: scale(100, 100) translate(-50%);
        }


        /* --------------------------- */
        /* --- Footer --- */
        /* --------------------------- */
        footer {
            text-align: center;
            padding: 20px;
            background: rgba(0, 0, 0, 0.15);
            color: white !important;
            font-size: 0.9em;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            margin-top: 40px;
        }

        footer p {
            margin: 5px 0;
            color: white !important;
            background-color: transparent !important;
        }

        footer a {
            color: var(--color-gold) !important;
            font-weight: bold;
        }

        footer a:hover {
            color: white !important;
        }


        /* --------------------------- */
        /* --- Responsive Styles (Mobile) --- */
        /* --------------------------- */
        @media (max-width: 600px) {

            header {
                flex-direction: column;
                align-items: center;
                padding: 10px 3%;
                gap: 10px;
            }

            .logo {
                gap: 5px;
                width: 100%;
                justify-content: center;
            }

            header h1 {
                font-size: 1em;
                text-align: center;
            }

            .header-logo {
                height: 40px;
            }

            .phone-number {
                font-size: 1em;
                padding: 8px 15px;
                width: 80%;
                max-width: 300px;
                text-align: center;
            }

            .promo-row-1,
            .promo-row-2 {
                flex-direction: column;
                align-items: center;
                justify-content: center;
                margin-bottom: 20px;
                gap: 15px;
            }

            .promo-row-1 .logo-box {
                margin-bottom: 15px;
            }

            .video-section h2 {
                color: var(--color-blue) !important;
                font-size: 1.1em;
                margin-bottom: 30px;
                line-height: 1.2;
            }

            .logo-box img {
                width: 100%;
                max-width: 280px;
            }

            .promo-row-2 .student-image img {
                width: 100%;
                max-width: 250px;
                margin: 10px auto;
            }

            .brown-box {
                width: fit-content;
                max-width: 300px;
                height: auto;
                font-size: 1.1em;
                padding: 15px 20px;
                margin: 0 auto;
                text-align: center;
                color: white !important;
            }

            /* FOOTER BANNER */
            .blue-title {
                font-size: 18px;
                color: var(--color-blue) !important;
                /* Επανεισαγωγή σκιάς για να "σκάει" το μπλε */
                text-shadow: 1px 1px 2px var(--color-dark-text), -1px -1px 2px var(--color-dark-text);
            }

            .yellow-subtitle {
                font-size: 14px;
                /* ΔΙΟΡΘΩΣΗ: Χρήση του σκούρου χρώματος */
                color: var(--color-dark-text) !important;
            }

            /* Exam Images - Mobile Styling */
            .exam-images {
                flex-direction: column;
                align-items: center;
                gap: 15px;
            }

            .exam-image-wrapper {
                width: 90%;
                max-width: 450px;
                max-height: 280px;
                height: 250px;
                flex-basis: auto;
                min-width: auto;
            }

            /* Εξασφαλίζουμε ότι η εικόνα δεν ξεπερνάει το κοντέινερ */
            .exam-images img {
                max-width: 100%;
                max-height: 100%;
                object-fit: contain;
            }


            .exam-text p {
                font-size: 1.1em;
                color: white !important;
                font-weight: 500 !important;
                background-color: transparent !important;
            }

            .glass-card {
                padding: 20px;
                margin: 15px 5%;
                border-radius: 15px;
                color: white !important;
            }

            .cta-button {
                font-size: 1em;
                padding: 10px 20px;
            }

            .feature-card {
                min-width: 90%;
            }

            .content-list-container li {
                font-size: 1em;
                color: white !important;
                background-color: transparent !important;
            }
        }