diff --git a/src/apps/epic/tests/integrated/test_views.py b/src/apps/epic/tests/integrated/test_views.py
index 3abc03c..588327b 100644
--- a/src/apps/epic/tests/integrated/test_views.py
+++ b/src/apps/epic/tests/integrated/test_views.py
@@ -8,7 +8,7 @@ from django.utils import timezone
 from apps.drama.models import GameEvent
 from apps.lyric.models import Token, User
 from apps.epic.models import (
-    DeckVariant, GateSlot, Room, RoomInvite, SigReservation, TableSeat, TarotCard,
+    Character, DeckVariant, GateSlot, Room, RoomInvite, SigReservation, TableSeat, TarotCard,
 )
 
 
@@ -1652,6 +1652,69 @@ class PickSkyRenderingTest(TestCase):
         self.assertContains(response, 'style="display:none"')
 
 
+# ── SEA_SELECT rendering ──────────────────────────────────────────────────────
+
+class PickSeaRenderingTest(TestCase):
+    """At SKY_SELECT, a confirmed Character swaps PICK SKY → PICK SEA + sea overlay."""
+
+    def setUp(self):
+        self.room, self.gamers, self.earthman, _ = _full_sig_setUp(self)
+        self.room.table_status = Room.SKY_SELECT
+        self.room.save()
+        self.sig_card = TarotCard.objects.get(
+            deck_variant=self.earthman, arcana="MIDDLE", suit="BRANDS", number=11
+        )
+        self.pc_seat = TableSeat.objects.get(room=self.room, role="PC")
+        self.pc_seat.significator = self.sig_card
+        self.pc_seat.save()
+        self.url = reverse("epic:room", kwargs={"room_id": self.room.id})
+
+    def _confirm_sky(self, seat=None):
+        target = seat or self.pc_seat
+        return Character.objects.create(seat=target, confirmed_at=timezone.now())
+
+    def test_sky_confirmed_false_when_no_character(self):
+        response = self.client.get(self.url)
+        self.assertFalse(response.context["sky_confirmed"])
+
+    def test_sky_confirmed_true_when_character_confirmed(self):
+        self._confirm_sky()
+        response = self.client.get(self.url)
+        self.assertTrue(response.context["sky_confirmed"])
+
+    def test_pick_sea_btn_shown_when_sky_confirmed(self):
+        self._confirm_sky()
+        response = self.client.get(self.url)
+        self.assertContains(response, "id_pick_sea_btn")
+
+    def test_pick_sky_btn_shown_when_sky_not_confirmed(self):
+        response = self.client.get(self.url)
+        self.assertContains(response, "id_pick_sky_btn")
+
+    def test_sea_overlay_included_when_sky_confirmed(self):
+        self._confirm_sky()
+        response = self.client.get(self.url)
+        self.assertContains(response, "id_sea_overlay")
+
+    def test_sea_overlay_select_defaults_to_waite_smith_for_levity(self):
+        self._confirm_sky()
+        response = self.client.get(self.url)
+        self.assertContains(response, "Celtic Cross, Waite-Smith")
+
+    def test_sea_overlay_select_defaults_to_escape_velocity_for_gravity(self):
+        ec_gamer = self.gamers[2]  # EC — gravity
+        self.client.force_login(ec_gamer)
+        ec_seat = TableSeat.objects.get(room=self.room, role="EC")
+        self._confirm_sky(seat=ec_seat)
+        response = self.client.get(self.url)
+        self.assertContains(response, "Celtic Cross, Escape Velocity")
+
+    def test_user_polarity_in_context_at_sky_select(self):
+        response = self.client.get(self.url)
+        self.assertIn("user_polarity", response.context)
+        self.assertEqual(response.context["user_polarity"], "levity")  # PC is levity
+
+
 # ── select_role GET redirect ──────────────────────────────────────────────────
 
 class SelectRoleGetRedirectTest(TestCase):
diff --git a/src/apps/epic/views.py b/src/apps/epic/views.py
index 335ad5f..9fd2e92 100644
--- a/src/apps/epic/views.py
+++ b/src/apps/epic/views.py
@@ -342,6 +342,24 @@ def _role_select_context(room, user):
             ctx["sig_cards"] = gravity_sig_cards(room)
         else:
             ctx["sig_cards"] = []
+
+    if room.table_status == Room.SKY_SELECT:
+        user_role = _canonical_seat.role if _canonical_seat else None
+        user_polarity = None
+        if user_role in _LEVITY_ROLES:
+            user_polarity = 'levity'
+        elif user_role in _GRAVITY_ROLES:
+            user_polarity = 'gravity'
+        ctx["user_polarity"] = user_polarity
+        sky_confirmed = bool(
+            _canonical_seat and Character.objects.filter(
+                seat=_canonical_seat,
+                confirmed_at__isnull=False,
+                retired_at__isnull=True,
+            ).exists()
+        )
+        ctx["sky_confirmed"] = sky_confirmed
+
     return ctx
 
 
diff --git a/src/static_src/scss/_natus.scss b/src/static_src/scss/_natus.scss
index b527443..4392fc0 100644
--- a/src/static_src/scss/_natus.scss
+++ b/src/static_src/scss/_natus.scss
@@ -934,3 +934,193 @@ body.page-sky {
         z-index: 90;
     }
 }
+
+// ── PICK SEA overlay ─────────────────────────────────────────────────────────
+// Mirrors .natus-* structure but with columns reversed:
+//   left = transparent (Celtic Cross card positions)
+//   right = rgba(--priUser) opaque (spread select)
+
+.sea-backdrop {
+    display: none;
+    position: fixed;
+    inset: 0;
+    background: rgba(0, 0, 0, 0.75);
+    backdrop-filter: blur(4px);
+    z-index: 200;
+}
+
+html.sea-open .sea-backdrop { display: block; }
+
+.sea-overlay {
+    display: none;
+    position: fixed;
+    inset: 0;
+    z-index: 201;
+    overflow-y: auto;
+    align-items: center;
+    justify-content: center;
+}
+
+html.sea-open .sea-overlay { display: flex; }
+
+.sea-modal-wrap {
+    position: relative;
+    width: 90vw;
+    max-width: 60rem;
+    max-height: 90vh;
+    margin: auto;
+    opacity: 0;
+    transform: translateY(1.5rem);
+    transition: opacity 0.25s, transform 0.25s;
+}
+
+html.sea-open .sea-modal-wrap {
+    opacity: 1;
+    transform: translateY(0);
+}
+
+.sea-modal {
+    border-radius: 0.5rem;
+    overflow: hidden;
+    width: 100%;
+}
+
+.sea-modal-header {
+    padding: 0.75rem 1.25rem;
+    background: rgba(var(--priUser), 1);
+
+    h2 { font-size: 1.4rem; margin: 0; }
+    p  { margin: 0.2rem 0 0; font-size: 0.85rem; opacity: 0.8; }
+}
+
+.sea-modal-body {
+    display: flex;
+    min-height: 20rem;
+}
+
+// ── Cards column (transparent / left) ────────────────────────────────────────
+
+.sea-cards-col {
+    flex: 1 1 55%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    padding: 1.5rem;
+}
+
+.sea-cross {
+    display: grid;
+    grid-template-areas:
+        ".      crown   .      "
+        "past   center  future "
+        ".      root    .      "
+        ".      crossing .     ";
+    grid-template-columns: 1fr 1fr 1fr;
+    grid-template-rows: auto auto auto auto;
+    gap: 0.5rem;
+    align-items: center;
+    justify-items: center;
+}
+
+.sea-cross-cell { display: flex; align-items: center; justify-content: center; }
+.sea-pos-crown    { grid-area: crown; }
+.sea-pos-past     { grid-area: past; }
+.sea-pos-center   { grid-area: center; }
+.sea-pos-future   { grid-area: future; }
+.sea-pos-root     { grid-area: root; }
+.sea-pos-crossing { grid-area: crossing; }
+
+$sea-card-w: 4rem;
+$sea-card-h: 6.5rem;
+
+.sea-card-slot {
+    width: $sea-card-w;
+    height: $sea-card-h;
+    border: 0.15rem dashed rgba(var(--terUser), 0.45);
+    border-radius: 0.3rem;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    font-size: 0.6rem;
+    color: rgba(var(--terUser), 0.6);
+}
+
+.sea-card-slot--sig {
+    border-style: solid;
+    border-color: rgba(var(--priUser), 0.9);
+    background: rgba(var(--priUser), 0.15);
+    font-size: 0.65rem;
+    text-align: center;
+    padding: 0.25rem;
+    color: rgba(var(--terUser), 0.9);
+}
+
+.sea-card-slot--crossing {
+    width: $sea-card-h;   // rotated — swap w/h
+    height: $sea-card-w;
+}
+
+.sea-sig-name {
+    display: block;
+    font-size: 0.6rem;
+    line-height: 1.2;
+    text-align: center;
+    word-break: break-word;
+}
+
+// ── Form column (priUser / opaque / right) ────────────────────────────────────
+
+.sea-form-col {
+    flex: 0 0 auto;
+    width: 16rem;
+    display: flex;
+    flex-direction: column;
+    padding: 1.25rem;
+    background: rgba(var(--priUser), 1);
+}
+
+.sea-form-main {
+    flex: 1;
+    overflow-y: auto;
+}
+
+.sea-field {
+    display: flex;
+    flex-direction: column;
+    gap: 0.35rem;
+    margin-bottom: 1rem;
+
+    label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; opacity: 0.7; }
+}
+
+.sea-select {
+    background: rgba(var(--duoUser), 0.6);
+    border: 1px solid rgba(var(--terUser), 0.3);
+    border-radius: 0.3rem;
+    color: inherit;
+    padding: 0.4rem 0.5rem;
+    font-size: 0.85rem;
+    width: 100%;
+
+    option { background: rgba(var(--priUser), 1); }
+}
+
+.sea-form-col > #id_sea_deal {
+    margin-top: auto;
+    width: 100%;
+}
+
+// NVM button — same positioning as .natus-modal-wrap > .btn-cancel
+.sea-modal-wrap > .btn-cancel {
+    position: absolute;
+    top: -0.75rem;
+    right: -0.75rem;
+    z-index: 10;
+}
+
+@media (orientation: landscape) {
+    html.sea-open body .container .navbar,
+    html.sea-open body #id_footer {
+        z-index: 90;
+    }
+}
diff --git a/src/templates/apps/gameboard/_partials/_sea_overlay.html b/src/templates/apps/gameboard/_partials/_sea_overlay.html
new file mode 100644
index 0000000..4a58ce4
--- /dev/null
+++ b/src/templates/apps/gameboard/_partials/_sea_overlay.html
@@ -0,0 +1,106 @@
+{% load static %}
+{# PICK SEA overlay — Celtic Cross spread entry                              #}
+{# Included in room.html when table_status == "SKY_SELECT" and sky_confirmed #}
+{# Layout is the reverse of PICK SKY: cards left (transparent), form right  #}
+
+<div class="sea-backdrop"></div>
+<div class="sea-overlay" id="id_sea_overlay">
+
+    <div class="sea-modal-wrap">
+    <div class="sea-modal">
+
+        <header class="sea-modal-header">
+            <h2>PICK <span>SEA</span></h2>
+            <p>Choose your spread and draw your Celtic Cross.</p>
+        </header>
+
+        <div class="sea-modal-body">
+
+            {# ── Cards column (transparent) ───────────────────────────── #}
+            <div class="sea-cards-col">
+                <div class="sea-cross">
+                    {# Crown — position 3 #}
+                    <div class="sea-cross-cell sea-pos-crown">
+                        <div class="sea-card-slot sea-card-slot--empty"></div>
+                    </div>
+                    {# Past — position 4 #}
+                    <div class="sea-cross-cell sea-pos-past">
+                        <div class="sea-card-slot sea-card-slot--empty"></div>
+                    </div>
+                    {# Center — Significator (already placed) #}
+                    <div class="sea-cross-cell sea-pos-center">
+                        <div class="sea-card-slot sea-card-slot--sig">
+                            {% if my_tray_sig %}
+                                <span class="sea-sig-name">{{ my_tray_sig.name_title }}</span>
+                            {% endif %}
+                        </div>
+                    </div>
+                    {# Future — position 5 #}
+                    <div class="sea-cross-cell sea-pos-future">
+                        <div class="sea-card-slot sea-card-slot--empty"></div>
+                    </div>
+                    {# Root — position 1 #}
+                    <div class="sea-cross-cell sea-pos-root">
+                        <div class="sea-card-slot sea-card-slot--empty"></div>
+                    </div>
+                    {# Crossing — position 2 (rotated across center) #}
+                    <div class="sea-cross-cell sea-pos-crossing">
+                        <div class="sea-card-slot sea-card-slot--empty sea-card-slot--crossing"></div>
+                    </div>
+                </div>
+            </div>
+
+            {# ── Form column (priUser / opaque) ───────────────────────── #}
+            <div class="sea-form-col">
+
+                <div class="sea-form-main">
+                    <div class="sea-field">
+                        <label for="id_sea_spread">Spread</label>
+                        <select id="id_sea_spread" name="spread" class="sea-select">
+                            {% if user_polarity == "levity" %}
+                                <option value="waite-smith" selected>Celtic Cross, Waite-Smith</option>
+                                <option value="escape-velocity">Celtic Cross, Escape Velocity</option>
+                            {% else %}
+                                <option value="escape-velocity" selected>Celtic Cross, Escape Velocity</option>
+                                <option value="waite-smith">Celtic Cross, Waite-Smith</option>
+                            {% endif %}
+                        </select>
+                    </div>
+                </div>
+
+                <button type="button" id="id_sea_deal" class="btn btn-primary" disabled>
+                    Deal
+                </button>
+
+            </div>
+
+        </div>{# /.sea-modal-body #}
+
+    </div>{# /.sea-modal #}
+
+    <button type="button" id="id_sea_cancel" class="btn btn-cancel btn-sm">NVM</button>
+
+    </div>{# /.sea-modal-wrap #}
+</div>{# /.sea-overlay #}
+
+<script>
+(function () {
+  'use strict';
+
+  const overlay   = document.getElementById('id_sea_overlay');
+  const cancelBtn = document.getElementById('id_sea_cancel');
+
+  function openSea() {
+    document.documentElement.classList.add('sea-open');
+  }
+
+  function closeSea() {
+    document.documentElement.classList.remove('sea-open');
+  }
+
+  const pickSeaBtn = document.getElementById('id_pick_sea_btn');
+  if (pickSeaBtn) pickSeaBtn.addEventListener('click', openSea);
+  cancelBtn.addEventListener('click', closeSea);
+  overlay.addEventListener('click', (e) => { if (e.target === overlay) closeSea(); });
+})();
+</script>
diff --git a/src/templates/apps/gameboard/room.html b/src/templates/apps/gameboard/room.html
index 3722b6e..0c70677 100644
--- a/src/templates/apps/gameboard/room.html
+++ b/src/templates/apps/gameboard/room.html
@@ -35,7 +35,11 @@
                                     {% endif %}
                                 {% endif %}
                                 {% if room.table_status == "SKY_SELECT" %}
-                                    <button id="id_pick_sky_btn" class="btn btn-primary">PICK<br>SKY</button>
+                                    {% if sky_confirmed %}
+                                        <button id="id_pick_sea_btn" class="btn btn-primary">PICK<br>SEA</button>
+                                    {% else %}
+                                        <button id="id_pick_sky_btn" class="btn btn-primary">PICK<br>SKY</button>
+                                    {% endif %}
                                 {% elif room.table_status == "SIG_SELECT" %}
                                     <button id="id_pick_sky_btn" class="btn btn-primary" style="display:none">PICK<br>SKY</button>
                                     {% if polarity_done %}
@@ -68,15 +72,20 @@
         {% endif %}
 
         {# Natus (Pick Sky) overlay — natal chart entry #}
-        {% if room.table_status == "SKY_SELECT" %}
+        {% if room.table_status == "SKY_SELECT" and not sky_confirmed %}
             {% include "apps/gameboard/_partials/_natus_overlay.html" %}
         {% endif %}
         {# Natus tooltip: sibling of .natus-overlay, not inside .natus-modal-wrap (which has transform) #}
-        {% if room.table_status == "SKY_SELECT" %}
+        {% if room.table_status == "SKY_SELECT" and not sky_confirmed %}
             <div id="id_natus_tooltip" class="tt" style="display:none;"></div>
             <div id="id_natus_tooltip_2" class="tt" style="display:none;"></div>
         {% endif %}
 
+        {# Sea (Pick Sea) overlay — Celtic Cross spread entry #}
+        {% if room.table_status == "SKY_SELECT" and sky_confirmed %}
+            {% include "apps/gameboard/_partials/_sea_overlay.html" %}
+        {% endif %}
+
         {% if room.gate_status != "RENEWAL_DUE" and room.table_status != "SIG_SELECT" %}
             {% include "apps/gameboard/_partials/_table_positions.html" %}
         {% endif %}